SSHClient Component

Properties Methods Events Config Settings Errors

The SSHClient class provides client-side SSH protocol functionality.

Syntax

secureblackbox.SSHClient

Remarks

Use SSHClient to establish terminal-like connections to remote systems and run commands remotely. The component supports most of third-party implementations out there, and is capable of working in "shell" and "command" modes.

Start with assigning your sign-in credentials to Username and Password properties. Where public key authentication is to be used, assign your private authentication key to Key property (remember to set Username in this case too). Subscribe to events to be notified of the session progress. AuthFailed, AuthSucceeded, and Connect are among those particularly useful.

Special attention should be paid to setting up the server key trust. Struct only allows connections to servers whose public keys are recognized as trusted, much like any other SSH clients do. Assign a path to the file containing the list of trusted keys to TrustedKeysFile property. If you don't have such file, or if you would like to make trust decisions on the fly, subscribe to KnownKeyReceived and UnknownKeyReceived events. These are fired whenever a trusted or untrusted key is received from the server. For unknown/untrusted keys, you need to set the Action parameter in your UnknownKeyReceived event handler to catAcceptOnce (1) or catAcceptPermanently (2) for the connection to proceed.

Once you are all set up, you can go ahead by calling the Connect method. This launches the SSH handshake and, if everything has been set up right, establishes a connection to the server. You can now use Send and Receive methods to exchange information with the server. You can exchange data in synchronous or asynchronous way; see the description in AsyncMode topic to learn more about each mode.

When you are done with the session, call Disconnect to shut the connection down.

Hint: If you are only interested in a quick-and-dirty execution of a simple, non-interactive command, SSHClient offers a handy shortcut. ConnectAndExec method is a self-contained mechanism which sets up a connection, performs the data exchange internally, and returns the command output. Please keep in mind that you still need to set up the server trust settings as described above for this method to work.

Property List

The following is the full list of the properties of the component with short descriptions. Click on the links for further details.


AsyncMode	Controls the SSH clients mode of work.
AuthAttempts	Specifies the number of SSH password authentication attempts.
Commands	Specifies the list of commands to execute.
Connected	Specifies whether the client is connected to the SFTP server.
ConnInfoClientKeyAlgorithm	Specifies the client's key algorithm.
ConnInfoClientKeyBits	Specifies the length of the client's key.
ConnInfoClientKeyFingerprint	The fingerprint (hash value) of the client's public key.
ConnInfoCloseReason	Contains the line sent by the server just before closing the connection.
ConnInfoCompressionAlgorithmInbound	Compression algorithm for the incoming traffic.
ConnInfoCompressionAlgorithmOutbound	Compression algorithm for the outgoing traffic.
ConnInfoEncryptionAlgorithmInbound	Encryption algorithm for the incoming traffic.
ConnInfoEncryptionAlgorithmOutbound	Encryption algorithm for the outgoing traffic.
ConnInfoInboundEncryptionKeyBits	Specifies the length of the key used to encrypt the incoming traffic.
ConnInfoKexAlgorithm	The key exchange algorithm used during the SSH handshake.
ConnInfoKexBits	The number of bits used by the key exchange algorithm.
ConnInfoKexLines	The contents of the received KexInit packet.
ConnInfoMacAlgorithmInbound	MAC algorithm used for the incoming connection.
ConnInfoMacAlgorithmOutbound	MAC algorithm used for outbound connection.
ConnInfoOutboundEncryptionKeyBits	Specifies the length of the key used to encrypt the outgoing traffic.
ConnInfoPublicKeyAlgorithm	Specifies the public key algorithm which was used during the SSH handshake.
ConnInfoRemoteAddress	The client's IP address.
ConnInfoRemotePort	The remote port of the client connection.
ConnInfoRemoteSoftwareName	Returns the name (self-advertised) of the SSH software running on the other side.
ConnInfoServerKeyAlgorithm	Specifies the server's key algorithm.
ConnInfoServerKeyBits	Specifies the number of bits in the server's key.
ConnInfoServerKeyFingerprint	The fingerprint (hash value) of the server's public key.
ConnInfoTotalBytesReceived	Returns the total number of bytes received over this connection.
ConnInfoTotalBytesSent	Returns the total number of bytes sent over this connection.
ConnInfoVersion	Specifies SSH protocol version.
ExitMessage	Contains the last commands exit message.
ExitSignal	Contains the last commands exit signal.
ExitStatus	Contains the last commands exit status.
ExternalCryptoAsyncDocumentID	Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.
ExternalCryptoCustomParams	Custom parameters to be passed to the signing service (uninterpreted).
ExternalCryptoData	Additional data to be included in the async state and mirrored back by the requestor.
ExternalCryptoExternalHashCalculation	Specifies whether the message hash is to be calculated at the external endpoint.
ExternalCryptoHashAlgorithm	Specifies the request's signature hash algorithm.
ExternalCryptoKeyID	The ID of the pre-shared key used for DC request authentication.
ExternalCryptoKeySecret	The pre-shared key used for DC request authentication.
ExternalCryptoMethod	Specifies the asynchronous signing method.
ExternalCryptoMode	Specifies the external cryptography mode.
ExternalCryptoPublicKeyAlgorithm	Provide the public key algorithm here if the certificate is not available on the pre-signing stage.
FIPSMode	Reserved.
KeyFingerprintSHA1	Contains the SHA-1 fingerprint (hash) of the key.
KeyFingerprintSHA256	Contains the SHA-256 fingerprint (hash) of the key.
KeyHandle	Allows to get or set a 'handle', a unique identifier of the underlying property object.
Password	Specifies user's password on the server.
ProxySettingsAddress	The IP address of the proxy server.
ProxySettingsAuthentication	The authentication type used by the proxy server.
ProxySettingsPassword	The password to authenticate to the proxy server.
ProxySettingsPort	The port on the proxy server to connect to.
ProxySettingsProxyType	The type of the proxy server.
ProxySettingsRequestHeaders	Contains HTTP request headers for WebTunnel and HTTP proxy.
ProxySettingsResponseBody	Contains the HTTP or HTTPS (WebTunnel) proxy response body.
ProxySettingsResponseHeaders	Contains response headers received from an HTTP or HTTPS (WebTunnel) proxy server.
ProxySettingsUseIPv6	Specifies whether IPv6 should be used when connecting through the proxy.
ProxySettingsUsername	Specifies the username credential for proxy authentication.
ServerKeyAlgorithm	Specifies the key algorithm.
ServerKeyBits	The number of bits in the key: the more the better, 2048 or 4096 are typical values.
ServerKeyComment	The comment for the public key.
ServerKeyCurve	Specifies the elliptical curve when EC cryptography is used.
ServerKeyExtractable	Whether the key is extractable (e.
ServerKeyFingerprintMD5	Contains the MD5 fingerprint (hash) of the key.
ServerKeyFingerprintSHA1	Contains the SHA-1 fingerprint (hash) of the key.
ServerKeyFingerprintSHA256	Contains the SHA-256 fingerprint (hash) of the key.
ServerKeyHandle	Allows to get or set a 'handle', a unique identifier of the underlying property object.
ServerKeyKeyFormat	Specifies the format in which the key is stored.
ServerKeyKeyProtectionAlgorithm	Specifies the key protection algorithm.
ServerKeyPrivate	Whether this key is a private key or not.
ServerKeyPublic	Whether this key is a public key or not.
ServerKeySubject	Specifies the public key owner (subject).
SocketDNSMode	Selects the DNS resolver to use: the class's (secure) built-in one, or the one provided by the system.
SocketDNSPort	Specifies the port number to be used for sending queries to the DNS server.
SocketDNSQueryTimeout	The timeout (in milliseconds) for each DNS query.
SocketDNSServers	The addresses of DNS servers to use for address resolution, separated by commas or semicolons.
SocketDNSTotalTimeout	The timeout (in milliseconds) for the whole resolution process.
SocketIncomingSpeedLimit	The maximum number of bytes to read from the socket, per second.
SocketLocalAddress	The local network interface to bind the socket to.
SocketLocalPort	The local port number to bind the socket to.
SocketOutgoingSpeedLimit	The maximum number of bytes to write to the socket, per second.
SocketTimeout	The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful.
SocketUseIPv6	Enables or disables IP protocol version 6.
SSHSettingsAutoAdjustCiphers	Whether the SSH client should adjust its list of supported ciphers 'on-the-fly' for greater compatibility with the server it is connecting to.
SSHSettingsBaseConfiguration	Allows to choose base configuration of SSH settings, tuned up for different purposes such as high security or higher compatibility.
SSHSettingsCompressionAlgorithms	A list of session compression algorithms separated with commas or semicolons.
SSHSettingsCompressionLevel	Possible values for the Compression Level range from 0 (minimum compression) to 9 (maximum compression).
SSHSettingsDefaultWindowSize	The SSH window size specifies how many bytes the client can send to the server in the command channel without obtaining pre-authorization for the further send from the server.
SSHSettingsEncryptionAlgorithms	A list of session encryption algorithms separated with commas or semicolons.
SSHSettingsForceCompression	Whether the SSH client should explicitly request compression.
SSHSettingsForwardAuthAgent	Enables or disables auth agent forwarding.
SSHSettingsGSSAuthTypes	A comma-separated list of authentication types.
SSHSettingsGSSDelegateCreds	Switches credential delegation on or off.
SSHSettingsGSSHostname	The GSS host name, in form of a FQDN (e.
SSHSettingsGSSLib	A path to the GSS-API library (DLL or SO).
SSHSettingsGSSMechanisms	A comma-separated list of GSS mechanisms to use.
SSHSettingsGSSProtocols	A comma-separated list of SSPI protocols.
SSHSettingsHandshakeTimeout	Specifies the maximal time for the SSH handshake to proceed, in seconds.
SSHSettingsKexAlgorithms	A list of key exchange algorithms separated with commas or semicolons.
SSHSettingsMacAlgorithms	A list of MAC (for message authentication code ) algorithms separated with commas or semicolons.
SSHSettingsMaxSSHPacketSize	Specifies the maximum length of one SSH packet in bytes.
SSHSettingsMinWindowSize	Specifies the minimal internal window size.
SSHSettingsObfuscateHandshake	Enables or disables handshake obfuscation.
SSHSettingsObfuscationPassword	Specifies the password used to encrypt the handshake when ObfuscateHandshake is set.
SSHSettingsPublicKeyAlgorithms	A list of public key algorithms separated with commas or semicolons.
SSHSettingsRequestPasswordChange	Whether to request a password change when connecting.
SSHSettingsSoftwareName	The name to be used by the class to identify itself.
SSHSettingsTrustAllKeys	Enables or disables explicit trust to all server keys.
SSHSettingsUseAuthAgent	Enables or disables the use of external key agent, such as Putty key agent.
SSHSettingsVersions	Specifies enabled SSH protocol versions (1 or 2).
Subsystem	Specifies the subsystem to request from the server.
TerminalCols	Specifies the width of the pseudoterminal, in characters.
TerminalEnvironment	Specifies the list of environment variables.
TerminalEOLChar	Specifies the End-of-Line character or sequence.
TerminalHeight	Specifies the height of the pseudoterminal, in pixels.
TerminalOpcodes	Specifies the operation codes specific for the terminal.
TerminalProtocol	The terminal protocol name.
TerminalRequestPty	Specifies whether to request a pseudoterminal for the session.
TerminalRows	Specifies the height of the pseudoterminal, in lines.
TerminalWidth	Specifies the width of the pseudoterminal, in pixels.
TrustedKeysFile	Path to the file containing public keys of authorized servers.
Username	Specifies client's username on the server.

Method List

The following is the full list of the methods of the component with short descriptions. Click on the links for further details.


Config	Sets or retrieves a configuration setting.
Connect	Establishes connection to an SSH server.
ConnectAndExec	Connects to an SSH server and executes a command in one go.
Disconnect	Closes connection to the SSH server.
DoAction	Performs an additional action.
Ping	Sends a keep-alive request to the SSH server.
Poll	Checks whether there is any inbound data readily available.
Receive	Reads a portion of received data into a string.
ReceiveBytes	Reads a portion of received data into a byte array.
ReceiveBytesFrom	Reads a portion of data received via a specific channel into a byte array.
ReceiveFrom	Reads a portion of data received via a specific channel into a string.
Reset	Resets the class settings.
Send	Sends a string to the server.
SendBytes	Sends an array of bytes to the server.
SendSpecial	Sends a special character to the server or remote command.

Event List

The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.


AuthAttempt	Fires when a single authentication attempt is performed.
AuthFailed	Fires when a single authentication attempt is failed.
AuthSucceeded	Reports a successful authentication.
Banner	Reports the receipt of the Hello message from the server.
CommandCompleted	Signifies completion of the command execution.
CommandStart	Marks the commencement of a command execution.
Connect	This event is fired when an SSH session has been established.
DataReceived	Reports receipt of another chunk of data from the server.
DataSent	Notifies the application that a piece of data has been sent to the server.
Disconnect	This event is fired when the SFTP subsystem connection is closed.
Error	Information about errors during SFTP connection.
ExternalSign	Handles remote or external signing initiated by the SignExternal method or other source.
KnownKeyReceived	Signals that the server has introduced itself with a known key.
Notification	This event notifies the application about an underlying control flow event.
PasswordChangeRequest	This event is fired when a password change is requested.
PrivateKeyNeeded	This event is fired when client's public key was accepted by the server, but the corresponding secret key is not available.
UnknownKeyReceived	Signals that the server has introduced itself with an unknown key.

Config Settings

The following is a list of config settings for the component with short descriptions. Click on the links for further details.


AllAlgorithms	Returns the list of algorithms enabled in the class.
BlockSize	The data block size.
CommandTimeout	Specifies the command timeout.
CompressionAlgorithms	Returns the list of compression algorithms enabled in the class.
EarlyIdString	Enables the proactive approach to SSH handshake.
EncryptionAlgorithms	Returns the list of encryption algorithms enabled in the class.
ErrorOrigin	Specifies whether the error is local or remote.
ErrorSeverity	Specifies whether the error is fatal.
KexAlgorithms	Returns the list of key exchange algorithms enabled in the class.
LocalCharset	Charset used on the client machine.
MacAlgorithms	Returns the list of MAC algorithms enabled in the class.
PublicKeyAlgorithms	Returns the list of public key algorithms enabled in the class.
RemoteCharset	Charset used on the server.
SendCommandEOF	Defines whether EOF control character should be sent after the command data.
ThrottleControl	Enables or disables throttle control for the connection.
UseStrictKeyExchange	Specifies how strict key exchange is supported.
ASN1UseGlobalTagCache	Controls whether ASN.1 module should use a global object cache.
AssignSystemSmartCardPins	Specifies whether CSP-level PINs should be assigned to CNG keys.
CheckKeyIntegrityBeforeUse	Enables or disable private key integrity check before use.
CookieCaching	Specifies whether a cookie cache should be used for HTTP(S) transports.
Cookies	Gets or sets local cookies for the class.
DefDeriveKeyIterations	Specifies the default key derivation algorithm iteration count.
DNSLocalSuffix	The suffix to assign for TLD names.
EnableClientSideSSLFFDHE	Enables or disables finite field DHE key exchange support in TLS clients.
EnableSSHMLKEM	Enables support for ML-KEM/hybrid key exchange algorithms in SSH client and server classes.
EnableTLSMLKEM	Enables support for ML-KEM and hybrid groups in TLS client and server classes.
GlobalCookies	Gets or sets global cookies for all the HTTP transports.
HardwareCryptoUsePolicy	The hardware crypto usage policy.
HttpUserAgent	Specifies the user agent name to be used by all HTTP clients.
HttpVersion	The HTTP version to use in any inner HTTP client classes created.
IgnoreExpiredMSCTLSigningCert	Whether to tolerate the expired Windows Update signing certificate.
ListDelimiter	The delimiter character for multi-element lists.
LogDestination	Specifies the debug log destination.
LogDetails	Specifies the debug log details to dump.
LogFile	Specifies the debug log filename.
LogFilters	Specifies the debug log filters.
LogFlushMode	Specifies the log flush mode.
LogLevel	Specifies the debug log level.
LogMaxEventCount	Specifies the maximum number of events to cache before further action is taken.
LogRotationMode	Specifies the log rotation mode.
MaxASN1BufferLength	Specifies the maximal allowed length for ASN.1 primitive tag data.
MaxASN1TreeDepth	Specifies the maximal depth for processed ASN.1 trees.
OCSPHashAlgorithm	Specifies the hash algorithm to be used to identify certificates in OCSP requests.
OldClientSideRSAFallback	Specifies whether the SSH client should use a SHA1 fallback.
PKICache	Specifies which PKI elements (certificates, CRLs, OCSP responses) should be cached.
PKICachePath	Specifies the file system path where cached PKI data is stored.
ProductVersion	Returns the version of the SecureBlackbox library.
ServerSSLDHKeyLength	Sets the size of the TLS DHE key exchange group.
StaticDNS	Specifies whether static DNS rules should be used.
StaticIPAddress[domain]	Gets or sets an IP address for the specified domain name.
StaticIPAddresses	Gets or sets all the static DNS rules.
Tag	Allows to store any custom data.
TLSSessionGroup	Specifies the group name of TLS sessions to be used for session resumption.
TLSSessionLifetime	Specifies lifetime in seconds of the cached TLS session.
TLSSessionPurgeInterval	Specifies how often the session cache should remove the expired TLS sessions.
UseCRLObjectCaching	Specifies whether reuse of loaded CRL objects is enabled.
UseInternalRandom	Switches between SecureBlackbox-own and platform PRNGs.
UseLegacyAdESValidation	Enables legacy AdES validation mode.
UseOCSPResponseObjectCaching	Specifies whether reuse of loaded OCSP response objects is enabled.
UseOwnDNSResolver	Specifies whether the client classes should use own DNS resolver.
UseSharedSystemStorages	Specifies whether the validation engine should use a global per-process copy of the system certificate stores.
UseSystemNativeSizeCalculation	An internal CryptoAPI access tweak.
UseSystemOAEPAndPSS	Enforces or disables the use of system-driven RSA OAEP and PSS computations.
UseSystemRandom	Enables or disables the use of the OS PRNG.
XMLRDNDescriptorName[OID]	Defines an OID mapping to descriptor names for the certificate's IssuerRDN or SubjectRDN.
XMLRDNDescriptorPriority[OID]	Specifies the priority of descriptor names associated with a specific OID.
XMLRDNDescriptorReverseOrder	Specifies whether to reverse the order of descriptors in RDN.
XMLRDNDescriptorSeparator	Specifies the separator used between descriptors in RDN.

AsyncMode Property (SSHClient Component)

Controls the SSH clients mode of work.

Syntax

func (obj *SSHClient) AsyncMode() (bool, error)
func (obj *SSHClient) SetAsyncMode(value bool) error

Default Value

false

Remarks

This property defines the way in which the struct communicates with the application/user code. AsyncMode set to false makes the component use synchronous single-thread approach. Synchronous mode is generally simpler to integrate and use, but please keep in mind that the calls like Connect, Receive or SendBytes may block until their execution completes. In asynchronous mode all operations return immediately, but more care should be taken about handling them in your code properly.

Here are a few highlights of each mode.

Synchronous mode:

All operations are performed within the caller thread context
Operations like Connect or SendBytes may block
Use Poll to check for the availability of data before reading it out with Receive or ReceiveBytes
Return of a call guarantees completion of the operation
Connection errors are reported straight from the methods via exceptions

Asynchronous mode:

All operations are performed in a separate thread (and so are the event calls!)
Methods like Send return immediately
Use DataSent and DataReceived events to be notified about actual data transmissions
Return of call only marks the beginning of the operation and does not guarantee its successful completion
Connection errors are reported via Error event, often followed by Disconnect.

Please note that this is a very important and sensitive property, which has a wide-scale effect on the way the SSH client works and co-operates with the application. Depending on the value assigned to this setting you may need to work with the component very differently.

When setting this property to true, please make sure that your code is prepared to handle events coming from the context of a different thread.

Data Type

bool

AuthAttempts Property (SSHClient Component)

Specifies the number of SSH password authentication attempts.

Syntax

func (obj *SSHClient) AuthAttempts() (int32, error)
func (obj *SSHClient) SetAuthAttempts(value int32) error

Default Value

Remarks

In case of password authentication failure provide new password inside the AuthFailed event handler.

Data Type

int32

Commands Property (SSHClient Component)

Specifies the list of commands to execute.

Syntax

func (obj *SSHClient) Commands() (string, error)
func (obj *SSHClient) SetCommands(value string) error

Default Value

Remarks

Use this property to provide a list of commands to execute remotely. Separate different commands with EOL characters.

When this property is set, the component works in the command mode, meaning each command is executed in its own virtual terminal session. No shell connection is established.

If no commands are provided via this property, the component will establish a shell session.

Data Type

string

Connected Property (SSHClient Component)

Specifies whether the client is connected to the SFTP server.

Syntax

func (obj *SSHClient) Connected() (bool, error)

Default Value

false

Remarks

Use this read-only property to check whether the client is connected to the server.

This property is read-only.

Data Type

bool

ConnInfoClientKeyAlgorithm Property (SSHClient Component)

Specifies the client's key algorithm.

Syntax

func (obj *SSHClient) ConnInfoClientKeyAlgorithm() (string, error)

Default Value

Remarks

Specifies the client's key algorithm.

This property is read-only.

Data Type

string

ConnInfoClientKeyBits Property (SSHClient Component)

Specifies the length of the client's key.

Syntax

func (obj *SSHClient) ConnInfoClientKeyBits() (int32, error)

Default Value

Remarks

Specifies the length of the client's key.

This property is read-only.

Data Type

int32

ConnInfoClientKeyFingerprint Property (SSHClient Component)

The fingerprint (hash value) of the client's public key.

Syntax

func (obj *SSHClient) ConnInfoClientKeyFingerprint() (string, error)

Default Value

Remarks

The fingerprint (hash value) of the client's public key.

This property is read-only.

Data Type

string

ConnInfoCloseReason Property (SSHClient Component)

Contains the line sent by the server just before closing the connection.

Syntax

func (obj *SSHClient) ConnInfoCloseReason() (string, error)

Default Value

Remarks

Contains the line sent by the server just before closing the connection. It might contain the error description if the connection was not closed gracefully.

This property is read-only.

Data Type

string

ConnInfoCompressionAlgorithmInbound Property (SSHClient Component)

Compression algorithm for the incoming traffic.

Syntax

func (obj *SSHClient) ConnInfoCompressionAlgorithmInbound() (string, error)

Default Value

Remarks

Compression algorithm for the incoming traffic.

This property is read-only.

Data Type

string

ConnInfoCompressionAlgorithmOutbound Property (SSHClient Component)

Compression algorithm for the outgoing traffic.

Syntax

func (obj *SSHClient) ConnInfoCompressionAlgorithmOutbound() (string, error)

Default Value

Remarks

Compression algorithm for the outgoing traffic.

This property is read-only.

Data Type

string

ConnInfoEncryptionAlgorithmInbound Property (SSHClient Component)

Encryption algorithm for the incoming traffic.

Syntax

func (obj *SSHClient) ConnInfoEncryptionAlgorithmInbound() (string, error)

Default Value

Remarks

Encryption algorithm for the incoming traffic.

This property is read-only.

Data Type

string

ConnInfoEncryptionAlgorithmOutbound Property (SSHClient Component)

Encryption algorithm for the outgoing traffic.

Syntax

func (obj *SSHClient) ConnInfoEncryptionAlgorithmOutbound() (string, error)

Default Value

Remarks

Encryption algorithm for the outgoing traffic.

This property is read-only.

Data Type

string

ConnInfoInboundEncryptionKeyBits Property (SSHClient Component)

Specifies the length of the key used to encrypt the incoming traffic.

Syntax

func (obj *SSHClient) ConnInfoInboundEncryptionKeyBits() (int32, error)

Default Value

Remarks

Specifies the length of the key used to encrypt the incoming traffic.

This property is read-only.

Data Type

int32

ConnInfoKexAlgorithm Property (SSHClient Component)

The key exchange algorithm used during the SSH handshake.

Syntax

func (obj *SSHClient) ConnInfoKexAlgorithm() (string, error)

Default Value

Remarks

The key exchange algorithm used during the SSH handshake.

This property is read-only.

Data Type

string

ConnInfoKexBits Property (SSHClient Component)

The number of bits used by the key exchange algorithm.

Syntax

func (obj *SSHClient) ConnInfoKexBits() (int32, error)

Default Value

Remarks

The number of bits used by the key exchange algorithm.

This property is read-only.

Data Type

int32

ConnInfoKexLines Property (SSHClient Component)

The contents of the received KexInit packet.

Syntax

func (obj *SSHClient) ConnInfoKexLines() (string, error)

Default Value

Remarks

The contents of the received KexInit packet.

KexInit packet contains the list of algorithms supported by the remote party.

This property is read-only.

Data Type

string

ConnInfoMacAlgorithmInbound Property (SSHClient Component)

MAC algorithm used for the incoming connection.

Syntax

func (obj *SSHClient) ConnInfoMacAlgorithmInbound() (string, error)

Default Value

Remarks

MAC algorithm used for the incoming connection.

This property is read-only.

Data Type

string

ConnInfoMacAlgorithmOutbound Property (SSHClient Component)

MAC algorithm used for outbound connection.

Syntax

func (obj *SSHClient) ConnInfoMacAlgorithmOutbound() (string, error)

Default Value

Remarks

MAC algorithm used for outbound connection.

This property is read-only.

Data Type

string

ConnInfoOutboundEncryptionKeyBits Property (SSHClient Component)

Specifies the length of the key used to encrypt the outgoing traffic.

Syntax

func (obj *SSHClient) ConnInfoOutboundEncryptionKeyBits() (int32, error)

Default Value

Remarks

Specifies the length of the key used to encrypt the outgoing traffic.

This property is read-only.

Data Type

int32

ConnInfoPublicKeyAlgorithm Property (SSHClient Component)

Specifies the public key algorithm which was used during the SSH handshake.

Syntax

func (obj *SSHClient) ConnInfoPublicKeyAlgorithm() (string, error)

Default Value

Remarks

Specifies the public key algorithm which was used during the SSH handshake.

This property is read-only.

Data Type

string

ConnInfoRemoteAddress Property (SSHClient Component)

The client's IP address.

Syntax

func (obj *SSHClient) ConnInfoRemoteAddress() (string, error)

Default Value

Remarks

The client's IP address.

This property is read-only.

Data Type

string

ConnInfoRemotePort Property (SSHClient Component)

The remote port of the client connection.

Syntax

func (obj *SSHClient) ConnInfoRemotePort() (int32, error)

Default Value

Remarks

The remote port of the client connection.

This property is read-only.

Data Type

int32

ConnInfoRemoteSoftwareName Property (SSHClient Component)

Returns the name (self-advertised) of the SSH software running on the other side.

Syntax

func (obj *SSHClient) ConnInfoRemoteSoftwareName() (string, error)

Default Value

Remarks

Returns the name (self-advertised) of the SSH software running on the other side.

This property is read-only.

Data Type

string

ConnInfoServerKeyAlgorithm Property (SSHClient Component)

Specifies the server's key algorithm.

Syntax

func (obj *SSHClient) ConnInfoServerKeyAlgorithm() (string, error)

Default Value

Remarks

Specifies the server's key algorithm.

This property is read-only.

Data Type

string

ConnInfoServerKeyBits Property (SSHClient Component)

Specifies the number of bits in the server's key.

Syntax

func (obj *SSHClient) ConnInfoServerKeyBits() (int32, error)

Default Value

Remarks

Specifies the number of bits in the server's key.

This property is read-only.

Data Type

int32

ConnInfoServerKeyFingerprint Property (SSHClient Component)

The fingerprint (hash value) of the server's public key.

Syntax

func (obj *SSHClient) ConnInfoServerKeyFingerprint() (string, error)

Default Value

Remarks

The fingerprint (hash value) of the server's public key.

This property is read-only.

Data Type

string

ConnInfoTotalBytesReceived Property (SSHClient Component)

Returns the total number of bytes received over this connection.

Syntax

func (obj *SSHClient) ConnInfoTotalBytesReceived() (int64, error)

Default Value

Remarks

Returns the total number of bytes received over this connection.

This property is read-only.

Data Type

int64

ConnInfoTotalBytesSent Property (SSHClient Component)

Returns the total number of bytes sent over this connection.

Syntax

func (obj *SSHClient) ConnInfoTotalBytesSent() (int64, error)

Default Value

Remarks

Returns the total number of bytes sent over this connection.

This property is read-only.

Data Type

int64

ConnInfoVersion Property (SSHClient Component)

Specifies SSH protocol version.

Syntax

func (obj *SSHClient) ConnInfoVersion() (int32, error)

Default Value

Remarks

Specifies SSH protocol version.

This property is read-only.

Data Type

int32

ExitMessage Property (SSHClient Component)

Contains the last commands exit message.

Syntax

func (obj *SSHClient) ExitMessage() (string, error)

Default Value

Remarks

Use this property to access the exit message of the last command or shell session. This property normally gets assigned if the command or shell was closed due to an error.

This property is read-only.

Data Type

string

ExitSignal Property (SSHClient Component)

Contains the last commands exit signal.

Syntax

func (obj *SSHClient) ExitSignal() (string, error)

Default Value

Remarks

Use this property to access the exit signal of the last command or shell session. This property normally gets assigned if the command or shell was closed due to an error.

This property is read-only.

Data Type

string

ExitStatus Property (SSHClient Component)

Contains the last commands exit status.

Syntax

func (obj *SSHClient) ExitStatus() (int32, error)

Default Value

Remarks

Check this property to obtain the exit status (also sometimes referred to as errorlevel) of the last command or shell session.

This property is read-only.

Data Type

int32

ExternalCryptoAsyncDocumentID Property (SSHClient Component)

Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.

Syntax

func (obj *SSHClient) ExternalCryptoAsyncDocumentID() (string, error)
func (obj *SSHClient) SetExternalCryptoAsyncDocumentID(value string) error

Default Value

Remarks

Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.

Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. On the completion stage, this value helps the signing component identify the correct signature in the returned batch of responses.

If using batched requests, make sure to set this property to the same value on both the pre-signing (SignAsyncBegin) and completion (SignAsyncEnd) stages.

Data Type

string

ExternalCryptoCustomParams Property (SSHClient Component)

Custom parameters to be passed to the signing service (uninterpreted).

Syntax

func (obj *SSHClient) ExternalCryptoCustomParams() (string, error)
func (obj *SSHClient) SetExternalCryptoCustomParams(value string) error

Default Value

Remarks

Custom parameters to be passed to the signing service (uninterpreted).

Data Type

string

ExternalCryptoData Property (SSHClient Component)

Additional data to be included in the async state and mirrored back by the requestor.

Syntax

func (obj *SSHClient) ExternalCryptoData() (string, error)
func (obj *SSHClient) SetExternalCryptoData(value string) error

Default Value

Remarks

Additional data to be included in the async state and mirrored back by the requestor.

Data Type

string

ExternalCryptoExternalHashCalculation Property (SSHClient Component)

Specifies whether the message hash is to be calculated at the external endpoint.

Syntax

func (obj *SSHClient) ExternalCryptoExternalHashCalculation() (bool, error)
func (obj *SSHClient) SetExternalCryptoExternalHashCalculation(value bool) error

Default Value

false

Remarks

Specifies whether the message hash is to be calculated at the external endpoint. Please note that this mode is not supported by the DCAuth struct.

If set to true, the struct will pass a few kilobytes of to-be-signed data from the document to the OnExternalSign event. This only applies when SignExternal() is called.

Data Type

bool

ExternalCryptoHashAlgorithm Property (SSHClient Component)

Specifies the request's signature hash algorithm.

Syntax

func (obj *SSHClient) ExternalCryptoHashAlgorithm() (string, error)
func (obj *SSHClient) SetExternalCryptoHashAlgorithm(value string) error

Default Value

"SHA256"

Remarks

Specifies the request's signature hash algorithm.


SB_HASH_ALGORITHM_SHA1	`SHA1`
SB_HASH_ALGORITHM_SHA224	`SHA224`
SB_HASH_ALGORITHM_SHA256	`SHA256`
SB_HASH_ALGORITHM_SHA384	`SHA384`
SB_HASH_ALGORITHM_SHA512	`SHA512`
SB_HASH_ALGORITHM_MD2	`MD2`
SB_HASH_ALGORITHM_MD4	`MD4`
SB_HASH_ALGORITHM_MD5	`MD5`
SB_HASH_ALGORITHM_RIPEMD160	`RIPEMD160`
SB_HASH_ALGORITHM_CRC32	`CRC32`
SB_HASH_ALGORITHM_SSL3	`SSL3`
SB_HASH_ALGORITHM_GOST_R3411_1994	`GOST1994`
SB_HASH_ALGORITHM_WHIRLPOOL	`WHIRLPOOL`
SB_HASH_ALGORITHM_POLY1305	`POLY1305`
SB_HASH_ALGORITHM_SHA3_224	`SHA3_224`
SB_HASH_ALGORITHM_SHA3_256	`SHA3_256`
SB_HASH_ALGORITHM_SHA3_384	`SHA3_384`
SB_HASH_ALGORITHM_SHA3_512	`SHA3_512`
SB_HASH_ALGORITHM_BLAKE2S_128	`BLAKE2S_128`
SB_HASH_ALGORITHM_BLAKE2S_160	`BLAKE2S_160`
SB_HASH_ALGORITHM_BLAKE2S_224	`BLAKE2S_224`
SB_HASH_ALGORITHM_BLAKE2S_256	`BLAKE2S_256`
SB_HASH_ALGORITHM_BLAKE2B_160	`BLAKE2B_160`
SB_HASH_ALGORITHM_BLAKE2B_256	`BLAKE2B_256`
SB_HASH_ALGORITHM_BLAKE2B_384	`BLAKE2B_384`
SB_HASH_ALGORITHM_BLAKE2B_512	`BLAKE2B_512`
SB_HASH_ALGORITHM_SHAKE_128	`SHAKE_128`
SB_HASH_ALGORITHM_SHAKE_256	`SHAKE_256`
SB_HASH_ALGORITHM_SHAKE_128_LEN	`SHAKE_128_LEN`
SB_HASH_ALGORITHM_SHAKE_256_LEN	`SHAKE_256_LEN`

Data Type

string

ExternalCryptoKeyID Property (SSHClient Component)

The ID of the pre-shared key used for DC request authentication.

Syntax

func (obj *SSHClient) ExternalCryptoKeyID() (string, error)
func (obj *SSHClient) SetExternalCryptoKeyID(value string) error

Default Value

Remarks

The ID of the pre-shared key used for DC request authentication.

Asynchronous DCAuth-driven communication requires that parties authenticate each other with a secret pre-shared cryptographic key. This provides an extra protection layer for the protocol and diminishes the risk of the private key becoming abused by foreign parties. Use this property to provide the pre-shared key identifier, and use ExternalCryptoKeySecret to pass the key itself.

The same KeyID/KeySecret pair should be used on the DCAuth side for the signing requests to be accepted.

Note: The KeyID/KeySecret scheme is very similar to the AuthKey scheme used in various Cloud service providers to authenticate users.

Example: signer.ExternalCrypto.KeyID = "MainSigningKey"; signer.ExternalCrypto.KeySecret = "abcdef0123456789";

Data Type

string

ExternalCryptoKeySecret Property (SSHClient Component)

The pre-shared key used for DC request authentication.

Syntax

func (obj *SSHClient) ExternalCryptoKeySecret() (string, error)
func (obj *SSHClient) SetExternalCryptoKeySecret(value string) error

Default Value

Remarks

The pre-shared key used for DC request authentication. This key must be set and match the key used by the DCAuth counterpart for the scheme to work.

Read more about configuring authentication in the ExternalCryptoKeyID topic.

Data Type

string

ExternalCryptoMethod Property (SSHClient Component)

Specifies the asynchronous signing method.

Syntax

func (obj *SSHClient) ExternalCryptoMethod() (int32, error)
func (obj *SSHClient) SetExternalCryptoMethod(value int32) error

Possible Values

0   // PKCS1
1   // PKCS7

Default Value

Remarks

Specifies the asynchronous signing method. This is typically defined by the DC server capabilities and setup.

Available options:


asmdPKCS1	`0`
asmdPKCS7	`1`

Data Type

int32

ExternalCryptoMode Property (SSHClient Component)

Specifies the external cryptography mode.

Syntax

func (obj *SSHClient) ExternalCryptoMode() (int32, error)
func (obj *SSHClient) SetExternalCryptoMode(value int32) error

Possible Values

0   // Default
1   // Disabled
2   // Generic
3   // DCAuth
4   // DCAuthJSON

Default Value

Remarks

Specifies the external cryptography mode.

Available options:


ecmDefault	The default value (`0`)
ecmDisabled	Do not use DC or external signing (`1`)
ecmGeneric	Generic external signing with the OnExternalSign event (`2`)
ecmDCAuth	DCAuth signing (`3`)
ecmDCAuthJSON	DCAuth signing in JSON format (`4`)

Data Type

int32

ExternalCryptoPublicKeyAlgorithm Property (SSHClient Component)

Provide the public key algorithm here if the certificate is not available on the pre-signing stage.

Syntax

func (obj *SSHClient) ExternalCryptoPublicKeyAlgorithm() (string, error)
func (obj *SSHClient) SetExternalCryptoPublicKeyAlgorithm(value string) error

Default Value

Remarks

Provide the public key algorithm here if the certificate is not available on the pre-signing stage.


SB_CERT_ALGORITHM_ID_RSA_ENCRYPTION	`rsaEncryption`
SB_CERT_ALGORITHM_MD2_RSA_ENCRYPTION	`md2withRSAEncryption`
SB_CERT_ALGORITHM_MD5_RSA_ENCRYPTION	`md5withRSAEncryption`
SB_CERT_ALGORITHM_SHA1_RSA_ENCRYPTION	`sha1withRSAEncryption`
SB_CERT_ALGORITHM_ID_DSA	`id-dsa`
SB_CERT_ALGORITHM_ID_DSA_SHA1	`id-dsa-with-sha1`
SB_CERT_ALGORITHM_DH_PUBLIC	`dhpublicnumber`
SB_CERT_ALGORITHM_SHA224_RSA_ENCRYPTION	`sha224WithRSAEncryption`
SB_CERT_ALGORITHM_SHA256_RSA_ENCRYPTION	`sha256WithRSAEncryption`
SB_CERT_ALGORITHM_SHA384_RSA_ENCRYPTION	`sha384WithRSAEncryption`
SB_CERT_ALGORITHM_SHA512_RSA_ENCRYPTION	`sha512WithRSAEncryption`
SB_CERT_ALGORITHM_ID_RSAPSS	`id-RSASSA-PSS`
SB_CERT_ALGORITHM_ID_RSAOAEP	`id-RSAES-OAEP`
SB_CERT_ALGORITHM_RSASIGNATURE_RIPEMD160	`ripemd160withRSA`
SB_CERT_ALGORITHM_ID_ELGAMAL	`elGamal`
SB_CERT_ALGORITHM_SHA1_ECDSA	`ecdsa-with-SHA1`
SB_CERT_ALGORITHM_RECOMMENDED_ECDSA	`ecdsa-recommended`
SB_CERT_ALGORITHM_SHA224_ECDSA	`ecdsa-with-SHA224`
SB_CERT_ALGORITHM_SHA256_ECDSA	`ecdsa-with-SHA256`
SB_CERT_ALGORITHM_SHA384_ECDSA	`ecdsa-with-SHA384`
SB_CERT_ALGORITHM_SHA512_ECDSA	`ecdsa-with-SHA512`
SB_CERT_ALGORITHM_EC	`id-ecPublicKey`
SB_CERT_ALGORITHM_SPECIFIED_ECDSA	`ecdsa-specified`
SB_CERT_ALGORITHM_GOST_R3410_1994	`id-GostR3410-94`
SB_CERT_ALGORITHM_GOST_R3410_2001	`id-GostR3410-2001`
SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_1994	`id-GostR3411-94-with-GostR3410-94`
SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_2001	`id-GostR3411-94-with-GostR3410-2001`
SB_CERT_ALGORITHM_SHA1_ECDSA_PLAIN	`ecdsa-plain-SHA1`
SB_CERT_ALGORITHM_SHA224_ECDSA_PLAIN	`ecdsa-plain-SHA224`
SB_CERT_ALGORITHM_SHA256_ECDSA_PLAIN	`ecdsa-plain-SHA256`
SB_CERT_ALGORITHM_SHA384_ECDSA_PLAIN	`ecdsa-plain-SHA384`
SB_CERT_ALGORITHM_SHA512_ECDSA_PLAIN	`ecdsa-plain-SHA512`
SB_CERT_ALGORITHM_RIPEMD160_ECDSA_PLAIN	`ecdsa-plain-RIPEMD160`
SB_CERT_ALGORITHM_WHIRLPOOL_RSA_ENCRYPTION	`whirlpoolWithRSAEncryption`
SB_CERT_ALGORITHM_ID_DSA_SHA224	`id-dsa-with-sha224`
SB_CERT_ALGORITHM_ID_DSA_SHA256	`id-dsa-with-sha256`
SB_CERT_ALGORITHM_SHA3_224_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-sha3-224`
SB_CERT_ALGORITHM_SHA3_256_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-sha3-256`
SB_CERT_ALGORITHM_SHA3_384_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-sha3-384`
SB_CERT_ALGORITHM_SHA3_512_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-sha3-512`
SB_CERT_ALGORITHM_SHA3_224_ECDSA	`id-ecdsa-with-sha3-224`
SB_CERT_ALGORITHM_SHA3_256_ECDSA	`id-ecdsa-with-sha3-256`
SB_CERT_ALGORITHM_SHA3_384_ECDSA	`id-ecdsa-with-sha3-384`
SB_CERT_ALGORITHM_SHA3_512_ECDSA	`id-ecdsa-with-sha3-512`
SB_CERT_ALGORITHM_SHA3_224_ECDSA_PLAIN	`id-ecdsa-plain-with-sha3-224`
SB_CERT_ALGORITHM_SHA3_256_ECDSA_PLAIN	`id-ecdsa-plain-with-sha3-256`
SB_CERT_ALGORITHM_SHA3_384_ECDSA_PLAIN	`id-ecdsa-plain-with-sha3-384`
SB_CERT_ALGORITHM_SHA3_512_ECDSA_PLAIN	`id-ecdsa-plain-with-sha3-512`
SB_CERT_ALGORITHM_ID_DSA_SHA3_224	`id-dsa-with-sha3-224`
SB_CERT_ALGORITHM_ID_DSA_SHA3_256	`id-dsa-with-sha3-256`
SB_CERT_ALGORITHM_BLAKE2S_128_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2s128`
SB_CERT_ALGORITHM_BLAKE2S_160_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2s160`
SB_CERT_ALGORITHM_BLAKE2S_224_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2s224`
SB_CERT_ALGORITHM_BLAKE2S_256_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2s256`
SB_CERT_ALGORITHM_BLAKE2B_160_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2b160`
SB_CERT_ALGORITHM_BLAKE2B_256_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2b256`
SB_CERT_ALGORITHM_BLAKE2B_384_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2b384`
SB_CERT_ALGORITHM_BLAKE2B_512_RSA_ENCRYPTION	`id-rsassa-pkcs1-v1_5-with-blake2b512`
SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA	`id-ecdsa-with-blake2s128`
SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA	`id-ecdsa-with-blake2s160`
SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA	`id-ecdsa-with-blake2s224`
SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA	`id-ecdsa-with-blake2s256`
SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA	`id-ecdsa-with-blake2b160`
SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA	`id-ecdsa-with-blake2b256`
SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA	`id-ecdsa-with-blake2b384`
SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA	`id-ecdsa-with-blake2b512`
SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2s128`
SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2s160`
SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2s224`
SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2s256`
SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2b160`
SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2b256`
SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2b384`
SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA_PLAIN	`id-ecdsa-plain-with-blake2b512`
SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_224	`id-dsa-with-blake2s224`
SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_256	`id-dsa-with-blake2s256`
SB_CERT_ALGORITHM_EDDSA_ED25519	`id-Ed25519`
SB_CERT_ALGORITHM_EDDSA_ED448	`id-Ed448`
SB_CERT_ALGORITHM_EDDSA_ED25519_PH	`id-Ed25519ph`
SB_CERT_ALGORITHM_EDDSA_ED448_PH	`id-Ed448ph`
SB_CERT_ALGORITHM_EDDSA	`id-EdDSA`
SB_CERT_ALGORITHM_EDDSA_SIGNATURE	`id-EdDSA-sig`
SB_CERT_ALGORITHM_MLDSA_44	`id-ml-dsa-44`
SB_CERT_ALGORITHM_MLDSA_65	`id-ml-dsa-65`
SB_CERT_ALGORITHM_MLDSA_87	`id-ml-dsa-87`
SB_CERT_ALGORITHM_HASH_MLDSA_44_SHA512	`id-hash-ml-dsa-44-with-sha512`
SB_CERT_ALGORITHM_HASH_MLDSA_65_SHA512	`id-hash-ml-dsa-65-with-sha512`
SB_CERT_ALGORITHM_HASH_MLDSA_87_SHA512	`id-hash-ml-dsa-87-with-sha512`
SB_CERT_ALGORITHM_MLKEM_512	`id-ml-kem-512`
SB_CERT_ALGORITHM_MLKEM_768	`id-ml-kem-768`
SB_CERT_ALGORITHM_MLKEM_1024	`id-ml-kem-1024`

Data Type

string

FIPSMode Property (SSHClient Component)

Reserved.

Syntax

func (obj *SSHClient) FIPSMode() (bool, error)
func (obj *SSHClient) SetFIPSMode(value bool) error

Default Value

false

Remarks

This property is reserved for future use.

Data Type

bool

KeyFingerprintSHA1 Property (SSHClient Component)

Contains the SHA-1 fingerprint (hash) of the key.

Syntax

func (obj *SSHClient) KeyFingerprintSHA1() (string, error)

Default Value

Remarks

Contains the SHA-1 fingerprint (hash) of the key.

This property is read-only.

Data Type

string

KeyFingerprintSHA256 Property (SSHClient Component)

Contains the SHA-256 fingerprint (hash) of the key.

Syntax

func (obj *SSHClient) KeyFingerprintSHA256() (string, error)

Default Value

Remarks

Contains the SHA-256 fingerprint (hash) of the key.

This property is read-only.

Data Type

string

KeyHandle Property (SSHClient Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

func (obj *SSHClient) KeyHandle() (int64, error)
func (obj *SSHClient) SetKeyHandle(value int64) error

Default Value

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

Data Type

int64

Password Property (SSHClient Component)

Specifies user's password on the server.

Syntax

func (obj *SSHClient) Password() (string, error)
func (obj *SSHClient) SetPassword(value string) error

Default Value

Remarks

Invalid password fires the AuthFailed event.

Data Type

string

ProxySettingsAddress Property (SSHClient Component)

The IP address of the proxy server.

Syntax

func (obj *SSHClient) ProxySettingsAddress() (string, error)
func (obj *SSHClient) SetProxySettingsAddress(value string) error

Default Value

Remarks

The IP address of the proxy server.

Data Type

string

ProxySettingsAuthentication Property (SSHClient Component)

The authentication type used by the proxy server.

Syntax

func (obj *SSHClient) ProxySettingsAuthentication() (int32, error)
func (obj *SSHClient) SetProxySettingsAuthentication(value int32) error

Possible Values

0   // NoAuthentication
1   // Basic
2   // Digest
3   // NTLM

Default Value

Remarks

The authentication type used by the proxy server.


patNoAuthentication	`0`
patBasic	`1`
patDigest	`2`
patNTLM	`3`

Data Type

int32

ProxySettingsPassword Property (SSHClient Component)

The password to authenticate to the proxy server.

Syntax

func (obj *SSHClient) ProxySettingsPassword() (string, error)
func (obj *SSHClient) SetProxySettingsPassword(value string) error

Default Value

Remarks

The password to authenticate to the proxy server.

Data Type

string

ProxySettingsPort Property (SSHClient Component)

The port on the proxy server to connect to.

Syntax

func (obj *SSHClient) ProxySettingsPort() (int32, error)
func (obj *SSHClient) SetProxySettingsPort(value int32) error

Default Value

Remarks

The port on the proxy server to connect to.

Data Type

int32

ProxySettingsProxyType Property (SSHClient Component)

The type of the proxy server.

Syntax

func (obj *SSHClient) ProxySettingsProxyType() (int32, error)
func (obj *SSHClient) SetProxySettingsProxyType(value int32) error

Possible Values

0   // None
1   // Socks4
2   // Socks5
3   // WebTunnel
4   // HTTP

Default Value

Remarks

The type of the proxy server.


cptNone	`0`
cptSocks4	`1`
cptSocks5	`2`
cptWebTunnel	`3`
cptHTTP	`4`

Data Type

int32

ProxySettingsRequestHeaders Property (SSHClient Component)

Contains HTTP request headers for WebTunnel and HTTP proxy.

Syntax

func (obj *SSHClient) ProxySettingsRequestHeaders() (string, error)
func (obj *SSHClient) SetProxySettingsRequestHeaders(value string) error

Default Value

Remarks

Contains HTTP request headers for WebTunnel and HTTP proxy.

Data Type

string

ProxySettingsResponseBody Property (SSHClient Component)

Contains the HTTP or HTTPS (WebTunnel) proxy response body.

Syntax

func (obj *SSHClient) ProxySettingsResponseBody() (string, error)
func (obj *SSHClient) SetProxySettingsResponseBody(value string) error

Default Value

Remarks

Contains the HTTP or HTTPS (WebTunnel) proxy response body.

Data Type

string

ProxySettingsResponseHeaders Property (SSHClient Component)

Contains response headers received from an HTTP or HTTPS (WebTunnel) proxy server.

Syntax

func (obj *SSHClient) ProxySettingsResponseHeaders() (string, error)
func (obj *SSHClient) SetProxySettingsResponseHeaders(value string) error

Default Value

Remarks

Contains response headers received from an HTTP or HTTPS (WebTunnel) proxy server.

Data Type

string

ProxySettingsUseIPv6 Property (SSHClient Component)

Specifies whether IPv6 should be used when connecting through the proxy.

Syntax

func (obj *SSHClient) ProxySettingsUseIPv6() (bool, error)
func (obj *SSHClient) SetProxySettingsUseIPv6(value bool) error

Default Value

false

Remarks

Specifies whether IPv6 should be used when connecting through the proxy.

Data Type

bool

ProxySettingsUsername Property (SSHClient Component)

Specifies the username credential for proxy authentication.

Syntax

func (obj *SSHClient) ProxySettingsUsername() (string, error)
func (obj *SSHClient) SetProxySettingsUsername(value string) error

Default Value

Remarks

Specifies the username credential for proxy authentication.

Data Type

string

ServerKeyAlgorithm Property (SSHClient Component)

Specifies the key algorithm.

Syntax

func (obj *SSHClient) ServerKeyAlgorithm() (string, error)

Default Value

Remarks

Specifies the key algorithm.

The following key algorithms are currently supported and can be returned by this property:

RSA
DSS
ECDSA
EDDSA
MLDSA
ECDSA-SK
EDDSA-SK

This property is read-only.

Data Type

string

ServerKeyBits Property (SSHClient Component)

The number of bits in the key: the more the better, 2048 or 4096 are typical values.

Syntax

func (obj *SSHClient) ServerKeyBits() (int32, error)

Default Value

Remarks

The number of bits in the key: the more the better, 2048 or 4096 are typical values.

This property is read-only.

Data Type

int32

ServerKeyComment Property (SSHClient Component)

The comment for the public key.

Syntax

func (obj *SSHClient) ServerKeyComment() (string, error)

Default Value

Remarks

The comment for the public key.

This property is read-only.

Data Type

string

ServerKeyCurve Property (SSHClient Component)

Specifies the elliptical curve when EC cryptography is used.

Syntax

func (obj *SSHClient) ServerKeyCurve() (string, error)

Default Value

Remarks

Specifies the elliptical curve when EC cryptography is used.

The following curves are currently supported:

NISTP256
NISTP384
NISTP521
NISTK163
NISTP192
NISTP224
NISTK233
NISTB233
NISTK283
NISTK409
NISTB409
NISTK571
CURVE25519 (EdDSA curve)
CURVE448 (EdDSA curve)

This property is read-only.

Data Type

string

ServerKeyExtractable Property (SSHClient Component)

Whether the key is extractable (e.

Syntax

func (obj *SSHClient) ServerKeyExtractable() (bool, error)

Default Value

false

Remarks

Whether the key is extractable (e.g., from a security token), or not.

This property is read-only.

Data Type

bool

ServerKeyFingerprintMD5 Property (SSHClient Component)

Contains the MD5 fingerprint (hash) of the key.

Syntax

func (obj *SSHClient) ServerKeyFingerprintMD5() (string, error)

Default Value

Remarks

Contains the MD5 fingerprint (hash) of the key.

This property is read-only.

Data Type

string

ServerKeyFingerprintSHA1 Property (SSHClient Component)

Contains the SHA-1 fingerprint (hash) of the key.

Syntax

func (obj *SSHClient) ServerKeyFingerprintSHA1() (string, error)

Default Value

Remarks

Contains the SHA-1 fingerprint (hash) of the key.

This property is read-only.

Data Type

string

ServerKeyFingerprintSHA256 Property (SSHClient Component)

Contains the SHA-256 fingerprint (hash) of the key.

Syntax

func (obj *SSHClient) ServerKeyFingerprintSHA256() (string, error)

Default Value

Remarks

Contains the SHA-256 fingerprint (hash) of the key.

This property is read-only.

Data Type

string

ServerKeyHandle Property (SSHClient Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

func (obj *SSHClient) ServerKeyHandle() (int64, error)

Default Value

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

This property is read-only.

Data Type

int64

ServerKeyKeyFormat Property (SSHClient Component)

Specifies the format in which the key is stored.

Syntax

func (obj *SSHClient) ServerKeyKeyFormat() (int32, error)

Possible Values

0   // OpenSSH
1   // OpenSSH2
2   // IETF
3   // PuTTY
4   // X509
5   // Binary
6   // SSH1
7   // PGP
8   // PKCS8
9   // PuTTY3
10   // OpenSSHCert

Default Value

Remarks

Specifies the format in which the key is stored.


ckfOpenSSH	`0`
ckfOpenSSH2	`1`
ckfIETF	`2`
ckfPuTTY	`3`
ckfX509	`4`
ckfBinary	`5`
ckfSSH1	`6`
ckfPGP	`7`
ckfPKCS8	`8`
ckfPuTTY3	`9`
ckfOpenSSHCert	`10`

This property is read-only.

Data Type

int32

ServerKeyKeyProtectionAlgorithm Property (SSHClient Component)

Specifies the key protection algorithm.

Syntax

func (obj *SSHClient) ServerKeyKeyProtectionAlgorithm() (string, error)

Default Value

Remarks

Specifies the key protection algorithm.

This property is read-only.

Data Type

string

ServerKeyPrivate Property (SSHClient Component)

Whether this key is a private key or not.

Syntax

func (obj *SSHClient) ServerKeyPrivate() (bool, error)

Default Value

false

Remarks

Whether this key is a private key or not.

This property is read-only.

Data Type

bool

ServerKeyPublic Property (SSHClient Component)

Whether this key is a public key or not.

Syntax

func (obj *SSHClient) ServerKeyPublic() (bool, error)

Default Value

false

Remarks

Whether this key is a public key or not.

This property is read-only.

Data Type

bool

ServerKeySubject Property (SSHClient Component)

Specifies the public key owner (subject).

Syntax

func (obj *SSHClient) ServerKeySubject() (string, error)

Default Value

Remarks

Specifies the public key owner (subject). This property is used only for IETF-keys.

This property is read-only.

Data Type

string

SocketDNSMode Property (SSHClient Component)

Selects the DNS resolver to use: the class's (secure) built-in one, or the one provided by the system.

Syntax

func (obj *SSHClient) SocketDNSMode() (int32, error)
func (obj *SSHClient) SetSocketDNSMode(value int32) error

Possible Values

0   // Auto
1   // Platform
2   // Own
3   // OwnSecure

Default Value

Remarks

Selects the DNS resolver to use: the component's (secure) built-in one, or the one provided by the system.


dmAuto	`0`
dmPlatform	`1`
dmOwn	`2`
dmOwnSecure	`3`

Data Type

int32

SocketDNSPort Property (SSHClient Component)

Specifies the port number to be used for sending queries to the DNS server.

Syntax

func (obj *SSHClient) SocketDNSPort() (int32, error)
func (obj *SSHClient) SetSocketDNSPort(value int32) error

Default Value

Remarks

Specifies the port number to be used for sending queries to the DNS server.

Data Type

int32

SocketDNSQueryTimeout Property (SSHClient Component)

The timeout (in milliseconds) for each DNS query.

Syntax

func (obj *SSHClient) SocketDNSQueryTimeout() (int32, error)
func (obj *SSHClient) SetSocketDNSQueryTimeout(value int32) error

Default Value

Remarks

The timeout (in milliseconds) for each DNS query. The value of 0 indicates an infinite timeout.

Data Type

int32

SocketDNSServers Property (SSHClient Component)

The addresses of DNS servers to use for address resolution, separated by commas or semicolons.

Syntax

func (obj *SSHClient) SocketDNSServers() (string, error)
func (obj *SSHClient) SetSocketDNSServers(value string) error

Default Value

Remarks

The addresses of DNS servers to use for address resolution, separated by commas or semicolons.

Data Type

string

SocketDNSTotalTimeout Property (SSHClient Component)

The timeout (in milliseconds) for the whole resolution process.

Syntax

func (obj *SSHClient) SocketDNSTotalTimeout() (int32, error)
func (obj *SSHClient) SetSocketDNSTotalTimeout(value int32) error

Default Value

Remarks

The timeout (in milliseconds) for the whole resolution process. The value of 0 indicates an infinite timeout.

Data Type

int32

SocketIncomingSpeedLimit Property (SSHClient Component)

The maximum number of bytes to read from the socket, per second.

Syntax

func (obj *SSHClient) SocketIncomingSpeedLimit() (int32, error)
func (obj *SSHClient) SetSocketIncomingSpeedLimit(value int32) error

Default Value

Remarks

The maximum number of bytes to read from the socket, per second.

Data Type

int32

SocketLocalAddress Property (SSHClient Component)

The local network interface to bind the socket to.

Syntax

func (obj *SSHClient) SocketLocalAddress() (string, error)
func (obj *SSHClient) SetSocketLocalAddress(value string) error

Default Value

Remarks

The local network interface to bind the socket to.

Data Type

string

SocketLocalPort Property (SSHClient Component)

The local port number to bind the socket to.

Syntax

func (obj *SSHClient) SocketLocalPort() (int32, error)
func (obj *SSHClient) SetSocketLocalPort(value int32) error

Default Value

Remarks

The local port number to bind the socket to.

Data Type

int32

SocketOutgoingSpeedLimit Property (SSHClient Component)

The maximum number of bytes to write to the socket, per second.

Syntax

func (obj *SSHClient) SocketOutgoingSpeedLimit() (int32, error)
func (obj *SSHClient) SetSocketOutgoingSpeedLimit(value int32) error

Default Value

Remarks

The maximum number of bytes to write to the socket, per second.

Data Type

int32

SocketTimeout Property (SSHClient Component)

The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful.

Syntax

func (obj *SSHClient) SocketTimeout() (int32, error)
func (obj *SSHClient) SetSocketTimeout(value int32) error

Default Value

60000

Remarks

The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful.

If Timeout is set to 0, a socket operation will expire after the system-default timeout (2 hrs 8 min for TCP stack).

Data Type

int32

SocketUseIPv6 Property (SSHClient Component)

Enables or disables IP protocol version 6.

Syntax

func (obj *SSHClient) SocketUseIPv6() (bool, error)
func (obj *SSHClient) SetSocketUseIPv6(value bool) error

Default Value

false

Remarks

Enables or disables IP protocol version 6.

Data Type

bool

SSHSettingsAutoAdjustCiphers Property (SSHClient Component)

Whether the SSH client should adjust its list of supported ciphers 'on-the-fly' for greater compatibility with the server it is connecting to.

Syntax

func (obj *SSHClient) SSHSettingsAutoAdjustCiphers() (bool, error)
func (obj *SSHClient) SetSSHSettingsAutoAdjustCiphers(value bool) error

Default Value

true

Remarks

Whether the SSH client should adjust its list of supported ciphers 'on-the-fly' for greater compatibility with the server it is connecting to.

Data Type

bool

SSHSettingsBaseConfiguration Property (SSHClient Component)

Allows to choose base configuration of SSH settings, tuned up for different purposes such as high security or higher compatibility.

Syntax

func (obj *SSHClient) SSHSettingsBaseConfiguration() (int32, error)
func (obj *SSHClient) SetSSHSettingsBaseConfiguration(value int32) error

Possible Values

0   // Default
1   // Compatible
2   // ComprehensiveInsecure
3   // HighlySecure

Default Value

Remarks

Allows to choose base configuration of SSH settings, tuned up for different purposes such as high security or higher compatibility.

Data Type

int32

SSHSettingsCompressionAlgorithms Property (SSHClient Component)

A list of session compression algorithms separated with commas or semicolons.

Syntax

func (obj *SSHClient) SSHSettingsCompressionAlgorithms() (string, error)
func (obj *SSHClient) SetSSHSettingsCompressionAlgorithms(value string) error

Default Value

Remarks

A list of session compression algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all compression algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of compression algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported compression algorithms is provided below:

none
zlib
zlib@openssh.com

Data Type

string

SSHSettingsCompressionLevel Property (SSHClient Component)

Possible values for the Compression Level range from 0 (minimum compression) to 9 (maximum compression).

Syntax

func (obj *SSHClient) SSHSettingsCompressionLevel() (int32, error)
func (obj *SSHClient) SetSSHSettingsCompressionLevel(value int32) error

Default Value

Remarks

Possible values for the Compression Level range from 0 (minimum compression) to 9 (maximum compression). This setting is ignored if compression wasn't accepted.

Data Type

int32

SSHSettingsDefaultWindowSize Property (SSHClient Component)

The SSH window size specifies how many bytes the client can send to the server in the command channel without obtaining pre-authorization for the further send from the server.

Syntax

func (obj *SSHClient) SSHSettingsDefaultWindowSize() (int32, error)
func (obj *SSHClient) SetSSHSettingsDefaultWindowSize(value int32) error

Default Value

2048000

Remarks

The SSH window size specifies how many bytes the client can send to the server in the command channel without obtaining pre-authorization for the further send from the server.

Data Type

int32

SSHSettingsEncryptionAlgorithms Property (SSHClient Component)

A list of session encryption algorithms separated with commas or semicolons.

Syntax

func (obj *SSHClient) SSHSettingsEncryptionAlgorithms() (string, error)
func (obj *SSHClient) SetSSHSettingsEncryptionAlgorithms(value string) error

Default Value

Remarks

A list of session encryption algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all encryption algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of encryption algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported encryption algorithms is provided below:

3des-cbc
blowfish-cbc
twofish256-cbc
twofish192-cbc
twofish128-cbc
aes256-cbc
aes192-cbc
aes128-cbc
serpent256-cbc
serpent192-cbc
serpent128-cbc
arcfour
idea-cbc
cast128-cbc
none
des-cbc
aes128-ctr
aes192-ctr
aes256-ctr
3des-ctr
blowfish-ctr
twofish128-ctr
twofish192-ctr
twofish256-ctr
serpent128-ctr
serpent192-ctr
serpent256-ctr
idea-ctr
cast128-ctr
arcfour128
arcfour256
aes128-gcm
aes256-gcm
aes128-gcm@openssh.com
aes256-gcm@openssh.com
chacha20-poly1305
chacha20-poly1305@openssh.com

Data Type

string

SSHSettingsForceCompression Property (SSHClient Component)

Whether the SSH client should explicitly request compression.

Syntax

func (obj *SSHClient) SSHSettingsForceCompression() (bool, error)
func (obj *SSHClient) SetSSHSettingsForceCompression(value bool) error

Default Value

false

Remarks

Whether the SSH client should explicitly request compression.

If ForceCompression is False, compression will be used only if the server doesn't support algorithms without compression.

Data Type

bool

SSHSettingsForwardAuthAgent Property (SSHClient Component)

Enables or disables auth agent forwarding.

Syntax

func (obj *SSHClient) SSHSettingsForwardAuthAgent() (bool, error)
func (obj *SSHClient) SetSSHSettingsForwardAuthAgent(value bool) error

Default Value

false

Remarks

Enables or disables auth agent forwarding. This allows the struct to connect to the second and subsequent servers in the chain with the key agent available on the client computer.

Data Type

bool

SSHSettingsGSSAuthTypes Property (SSHClient Component)

A comma-separated list of authentication types.

Syntax

func (obj *SSHClient) SSHSettingsGSSAuthTypes() (string, error)
func (obj *SSHClient) SetSSHSettingsGSSAuthTypes(value string) error

Default Value

Remarks

A comma-separated list of authentication types. Two types are currently supported: gssapi-with-mic and gssapi-keyex.

Data Type

string

SSHSettingsGSSDelegateCreds Property (SSHClient Component)

Switches credential delegation on or off.

Syntax

func (obj *SSHClient) SSHSettingsGSSDelegateCreds() (bool, error)
func (obj *SSHClient) SetSSHSettingsGSSDelegateCreds(value bool) error

Default Value

false

Remarks

Switches credential delegation on or off.

Data Type

bool

SSHSettingsGSSHostname Property (SSHClient Component)

The GSS host name, in form of a FQDN (e.

Syntax

func (obj *SSHClient) SSHSettingsGSSHostname() (string, error)
func (obj *SSHClient) SetSSHSettingsGSSHostname(value string) error

Default Value

Remarks

The GSS host name, in form of a FQDN (e.g. hostname.com), a principal name (e.g. 'host@hostname.com), or a cross-real ticket-granting ticket (e.g. krbtgt/test.com@example.com).

Data Type

string

SSHSettingsGSSLib Property (SSHClient Component)

A path to the GSS-API library (DLL or SO).

Syntax

func (obj *SSHClient) SSHSettingsGSSLib() (string, error)
func (obj *SSHClient) SetSSHSettingsGSSLib(value string) error

Default Value

Remarks

A path to the GSS-API library (DLL or SO).

Data Type

string

SSHSettingsGSSMechanisms Property (SSHClient Component)

A comma-separated list of GSS mechanisms to use.

Syntax

func (obj *SSHClient) SSHSettingsGSSMechanisms() (string, error)
func (obj *SSHClient) SetSSHSettingsGSSMechanisms(value string) error

Default Value

Remarks

A comma-separated list of GSS mechanisms to use. Two values are currently supported: lib and SSPI.

Data Type

string

SSHSettingsGSSProtocols Property (SSHClient Component)

A comma-separated list of SSPI protocols.

Syntax

func (obj *SSHClient) SSHSettingsGSSProtocols() (string, error)
func (obj *SSHClient) SetSSHSettingsGSSProtocols(value string) error

Default Value

Remarks

A comma-separated list of SSPI protocols. Two protocols are currently supported: kerberos and NTLM.

Data Type

string

SSHSettingsHandshakeTimeout Property (SSHClient Component)

Specifies the maximal time for the SSH handshake to proceed, in seconds.

Syntax

func (obj *SSHClient) SSHSettingsHandshakeTimeout() (int32, error)
func (obj *SSHClient) SetSSHSettingsHandshakeTimeout(value int32) error

Default Value

Remarks

Specifies the maximal time for the SSH handshake to proceed, in seconds. If the handshake is not completed within this period, the session is aborted.

Data Type

int32

SSHSettingsKexAlgorithms Property (SSHClient Component)

A list of key exchange algorithms separated with commas or semicolons.

Syntax

func (obj *SSHClient) SSHSettingsKexAlgorithms() (string, error)
func (obj *SSHClient) SetSSHSettingsKexAlgorithms(value string) error

Default Value

Remarks

A list of key exchange algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all key exchange algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of key exchange algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported kex algorithms is provided below:

diffie-hellman-group-exchange-sha1
diffie-hellman-group1-sha1
diffie-hellman-group14-sha1
diffie-hellman-group-exchange-sha256
rsa1024-sha1
rsa2048-sha256
ecdh-sha2-nistp256
ecdh-sha2-nistp384
ecdh-sha2-nistp521
ecdh-sha2-nistk163
ecdh-sha2-nistp192
ecdh-sha2-nistp224
ecdh-sha2-nistk233
ecdh-sha2-nistb233
ecdh-sha2-nistk283
ecdh-sha2-nistk409
ecdh-sha2-nistb409
ecdh-sha2-nistt571
ecdh-sha2-curve25519
curve25519-sha256@libssh.org
curve448-sha512@libssh.org
diffie-hellman-group14-sha256
diffie-hellman-group15-sha512
diffie-hellman-group16-sha512
diffie-hellman-group17-sha512
diffie-hellman-group18-sha512

Data Type

string

SSHSettingsMacAlgorithms Property (SSHClient Component)

A list of MAC (for message authentication code ) algorithms separated with commas or semicolons.

Syntax

func (obj *SSHClient) SSHSettingsMacAlgorithms() (string, error)
func (obj *SSHClient) SetSSHSettingsMacAlgorithms(value string) error

Default Value

Remarks

A list of MAC (for message authentication code) algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all MAC algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of MAC algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported MAC algorithms is provided below:

hmac-sha1
hmac-sha1-96
hmac-md5
hmac-md5-96
none
hmac-ripemd160
hmac-ripemd
hmac-ripemd160@openssh.com
hmac-sha256@ssh.com
hmac-sha256-96@ssh.com
umac-32@openssh.com
umac-64@openssh.com
umac-96@openssh.com
umac-128@openssh.com
hmac-sha2-256
hmac-sha2-512
aes128-gcm
aes256-gcm
chacha20-poly1305@openssh.com
hmac-sha2-256-etm@openssh.com
hmac-sha2-512-etm@openssh.com

Data Type

string

SSHSettingsMaxSSHPacketSize Property (SSHClient Component)

Specifies the maximum length of one SSH packet in bytes.

Syntax

func (obj *SSHClient) SSHSettingsMaxSSHPacketSize() (int32, error)
func (obj *SSHClient) SetSSHSettingsMaxSSHPacketSize(value int32) error

Data Type

bool

SSHSettingsObfuscationPassword Property (SSHClient Component)

Specifies the password used to encrypt the handshake when ObfuscateHandshake is set.

Syntax

func (obj *SSHClient) SSHSettingsObfuscationPassword() (string, error)
func (obj *SSHClient) SetSSHSettingsObfuscationPassword(value string) error

Default Value

Remarks

Specifies the password used to encrypt the handshake when ObfuscateHandshake is set.

Data Type

string

SSHSettingsPublicKeyAlgorithms Property (SSHClient Component)

A list of public key algorithms separated with commas or semicolons.

Syntax

func (obj *SSHClient) SSHSettingsPublicKeyAlgorithms() (string, error)
func (obj *SSHClient) SetSSHSettingsPublicKeyAlgorithms(value string) error

Default Value

Remarks

A list of public key algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all public key algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of public key algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported public key algorithms is provided below:

ssh-dss
ssh-rsa
x509v3-sign-rsa
x509v3-sign-dss
spki-sign-rsa,
spki-sign-dss
pgp-sign-rsa
pgp-sign-dss
ecdsa-sha2-nistp256
ecdsa-sha2-nistp384
ecdsa-sha2-nistp521
ecdsa-sha2-nistk163
ecdsa-sha2-nistp192
ecdsa-sha2-nistp224
ecdsa-sha2-nistk233
ecdsa-sha2-nistb233
ecdsa-sha2-nistk283
ecdsa-sha2-nistk409
ecdsa-sha2-nistb409
ecdsa-sha2-nistt571,
ecdsa-sha2-curve25519
x509v3-ssh-rsa
x509v3-ssh-dss
x509v3-rsa2048-sha256
x509v3-ecdsa-sha2-nistp256
x509v3-ecdsa-sha2-nistp384
x509v3-ecdsa-sha2-nistp521
x509v3-ecdsa-sha2-nistk163
x509v3-ecdsa-sha2-nistp192
x509v3-ecdsa-sha2-nistp224
x509v3-ecdsa-sha2-nistk233
x509v3-ecdsa-sha2-nistb233
x509v3-ecdsa-sha2-nistk283
x509v3-ecdsa-sha2-nistk409
x509v3-ecdsa-sha2-nistb409
x509v3-ecdsa-sha2-nistt571
x509v3-ecdsa-sha2-curve25519
ssh-ed25519
ssh-ed448
rsa-sha2-256
rsa-sha2-512

Data Type

string

SSHSettingsRequestPasswordChange Property (SSHClient Component)

Whether to request a password change when connecting.

Syntax

func (obj *SSHClient) SSHSettingsRequestPasswordChange() (bool, error)
func (obj *SSHClient) SetSSHSettingsRequestPasswordChange(value bool) error

Default Value

Remarks

Specifies enabled SSH protocol versions (1 or 2).

Data Type

int32

Subsystem Property (SSHClient Component)

Specifies the subsystem to request from the server.

Syntax

func (obj *SSHClient) Subsystem() (string, error)
func (obj *SSHClient) SetSubsystem(value string) error

Default Value

Remarks

Subsystem is a special form of an SSH channel. It is typically used to transfer third-party protocol data, with SFTP being the most widely known.

You can tell struct to set up a subsystem connection (rather than a shell or command) by assigning the subsystem name to this property.

Data Type

string

TerminalCols Property (SSHClient Component)

Specifies the width of the pseudoterminal, in characters.

Syntax

func (obj *SSHClient) TerminalCols() (int32, error)
func (obj *SSHClient) SetTerminalCols(value int32) error

Default Value

Remarks

Specifies the width of the pseudoterminal, in characters.

Data Type

int32

TerminalEnvironment Property (SSHClient Component)

Specifies the list of environment variables.

Syntax

func (obj *SSHClient) TerminalEnvironment() (string, error)
func (obj *SSHClient) SetTerminalEnvironment(value string) error

Default Value

Remarks

Specifies the list of environment variables.

Data Type

string

TerminalEOLChar Property (SSHClient Component)

Specifies the End-of-Line character or sequence.

Syntax

func (obj *SSHClient) TerminalEOLChar() ([]byte, error)
func (obj *SSHClient) SetTerminalEOLChar(value []byte) error

Remarks

Specifies the End-of-Line character or sequence.

Data Type

[]byte

TerminalHeight Property (SSHClient Component)

Specifies the height of the pseudoterminal, in pixels.

Syntax

func (obj *SSHClient) TerminalHeight() (int32, error)
func (obj *SSHClient) SetTerminalHeight(value int32) error

Default Value

Remarks

Specifies the height of the pseudoterminal, in pixels.

Data Type

int32

TerminalOpcodes Property (SSHClient Component)

Specifies the operation codes specific for the terminal.

Syntax

func (obj *SSHClient) TerminalOpcodes() (string, error)
func (obj *SSHClient) SetTerminalOpcodes(value string) error

Default Value

Remarks

Specifies the operation codes specific for the terminal.

Data Type

string

TerminalProtocol Property (SSHClient Component)

The terminal protocol name.

Syntax

func (obj *SSHClient) TerminalProtocol() (string, error)
func (obj *SSHClient) SetTerminalProtocol(value string) error

Default Value

"vt100"

Remarks

The terminal protocol name.

Data Type

string

TerminalRequestPty Property (SSHClient Component)

Specifies whether to request a pseudoterminal for the session.

Syntax

func (obj *SSHClient) TerminalRequestPty() (bool, error)
func (obj *SSHClient) SetTerminalRequestPty(value bool) error

Default Value

true

Remarks

Specifies whether to request a pseudoterminal for the session.

Data Type

bool

TerminalRows Property (SSHClient Component)

Specifies the height of the pseudoterminal, in lines.

Syntax

func (obj *SSHClient) TerminalRows() (int32, error)
func (obj *SSHClient) SetTerminalRows(value int32) error

Default Value

Remarks

Specifies the height of the pseudoterminal, in lines.

Data Type

int32

TerminalWidth Property (SSHClient Component)

Specifies the width of the pseudoterminal, in pixels.

Syntax

func (obj *SSHClient) TerminalWidth() (int32, error)
func (obj *SSHClient) SetTerminalWidth(value int32) error

Default Value

Remarks

Specifies the width of the pseudoterminal, in pixels.

Data Type

int32

TrustedKeysFile Property (SSHClient Component)

Path to the file containing public keys of authorized servers.

Syntax

func (obj *SSHClient) TrustedKeysFile() (string, error)
func (obj *SSHClient) SetTrustedKeysFile(value string) error

Default Value

Remarks

Path to the file containing public keys of authorized servers.

Data Type

string

Username Property (SSHClient Component)

Specifies client's username on the server.

Syntax

func (obj *SSHClient) Username() (string, error)
func (obj *SSHClient) SetUsername(value string) error

Default Value

Remarks

Client's password is set by Password property. ;

Data Type

string

Config Method (SSHClient Component)

Sets or retrieves a configuration setting.

Syntax

func (obj *SSHClient) Config(ConfigurationString string) (string, error)

Remarks

Config is a generic method available in every struct. It is used to set and retrieve configuration settings for the struct.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the struct, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

Connect Method (SSHClient Component)

Establishes connection to an SSH server.

Syntax

func (obj *SSHClient) Connect(Address string, Port int32) error

Remarks

Use this method to connect to the SSH server by providing its Address and Port.

Before connecting to the server you might want to set up your credentials using Username and Password properties. You might also need to configure the server key validation routine. You can do this by subscribing to KnownKeyReceived and UnknownKeyReceived events and implementing the event handlers as required.

Adjust AsyncMode before connecting to switch the component to either synchronous or asynchronous mode. In synchronous mode, all the calls to the component, such as Connect or SendBytes, are executed within the context of the caller thread, and block until the action completes. In asynchronous mode, the component runs the SSH session in a background thread, which makes all such calls return immediately. Find out more about the modes in the AsyncMode topic.

ConnectAndExec Method (SSHClient Component)

Connects to an SSH server and executes a command in one go.

Syntax

func (obj *SSHClient) ConnectAndExec(Address string, Port int32, Command string, WantStdout bool, WantStdErr bool) ([]byte, error)

Remarks

Use this method to connect to an SSH server at Address and Port and execute a command. The method returns the output of the executed command.

This method is a handy shortcut for running non-interactive commands. It encapsulates calls to Connect, Receive, Disconnect internally to save you time and space.

Please note that ConnectAndExec always runs synchronously, thus ignoring the AsyncMode setting.

Disconnect Method (SSHClient Component)

Closes connection to the SSH server.

Syntax

func (obj *SSHClient) Disconnect() error

Remarks

Call this method to terminate the active SSH connection.

Please note that in some cases the component may still have some inbound data cached internally even after the connection is closed. You can read that data out using Receive and/or ReceiveBytes methods.

DoAction Method (SSHClient Component)

Performs an additional action.

Syntax

func (obj *SSHClient) DoAction(ActionID string, ActionParams string) (string, error)

Remarks

DoAction is a generic method available in every struct. It is used to perform an additional action introduced after the product major release. The list of actions is not fixed, and may be flexibly extended over time.

The unique identifier (case insensitive) of the action is provided in the ActionID parameter.

ActionParams contains the value of a single parameter, or a list of multiple parameters for the action in the form of PARAM1=VALUE1;PARAM2=VALUE2;....

Common ActionIDs:


Action	Parameters	Returned value	Description
ResetTrustedListCache	none	none	Clears the cached list of trusted lists.
ResetCertificateCache	none	none	Clears the cached certificates.
ResetCRLCache	none	none	Clears the cached CRLs.
ResetOCSPResponseCache	none	none	Clears the cached OCSP responses.

Ping Method (SSHClient Component)

Sends a keep-alive request to the SSH server.

Syntax

func (obj *SSHClient) Ping() error

Remarks

Use this method to send a keep-alive message to the SSH server. Keep-alive messages are empty data packets which carry no useful information but are a handy way of checking if the connection is still alive.

Poll Method (SSHClient Component)

Checks whether there is any inbound data readily available.

Syntax

func (obj *SSHClient) Poll(Milliseconds int32) (bool, error)

Remarks

Use this method to check whether there is any incoming data available in the connection. If this method returns true, you can read the data with Receive or ReceiveBytes calls.

Use the Milliseconds parameter to tell the component how long it can wait for the data to arrive.

Receive Method (SSHClient Component)

Reads a portion of received data into a string.

Syntax

func (obj *SSHClient) Receive() (string, error)

Remarks

Use this method to read out a piece of data received from the server into a string.

Note that in synchronous mode this method may block in the absence of any inbound data until the next piece of data is received from the server. Use Poll to check if there is any data in the connection that is immediately available for reading.

In asynchronous mode a good time to call this method is upon receiving a read notification in DataReceived event handler. When working in asynchronous mode, this call returns immediately.

This method only returns data that arrives via the stdout channel. Use ReceiveFrom to read stderr data.

ReceiveBytes Method (SSHClient Component)

Reads a portion of received data into a byte array.

Syntax

func (obj *SSHClient) ReceiveBytes(MaxLen int32) ([]byte, error)

Remarks

Use this method to read out a piece of data received from the server into a byte array. Control the maximum length of the data chunk with the MaxLen parameter.

In asynchronous mode a good time to call this method is upon receiving a read notification in DataReceived event handler. When working in asynchronous mode, this call returns immediately.

This method only returns data that arrives via the stdout channel. Use ReceiveBytesFrom to read stderr data.

ReceiveBytesFrom Method (SSHClient Component)

Reads a portion of data received via a specific channel into a byte array.

Syntax

func (obj *SSHClient) ReceiveBytesFrom(Channel int32, MaxLen int32) ([]byte, error)

Remarks

Use this method to read out a piece of data received from the server into a byte array. Specify the channel that you are interested in reading from (0 for stdout, 1 for stderr) via the Channel parameter, and control the maximum length of the data chunk with the MaxLen parameter.

In asynchronous mode a good time to call this method is upon receiving a read notification in DataReceived event handler. When working in asynchronous mode, this call returns immediately.

Please also note that stdout and stderr channels are fully independent, which implies that data arriving via each channel should be read out separately.

ReceiveFrom Method (SSHClient Component)

Reads a portion of data received via a specific channel into a string.

Syntax

func (obj *SSHClient) ReceiveFrom(Channel int32) (string, error)

Remarks

Use this method to read out a piece of data received from the server into a string. Use the Channel parameter to specify the channel that you would like to read from (0 for stdout, 1 for stderr).

In asynchronous mode a good time to call this method is upon receiving a read notification in DataReceived event handler. When working in asynchronous mode, this call returns immediately.

Reset Method (SSHClient Component)

Resets the class settings.

Syntax

func (obj *SSHClient) Reset() error

Remarks

Reset is a generic method available in every struct.

Send Method (SSHClient Component)

Sends a string to the server.

Syntax

func (obj *SSHClient) Send(DataStr string, AddEOL bool) error

Remarks

Use this method to send DataStr to the remote command's stdin channel. Set the AddEOL parameter to true to append the end-of-line character to the string automatically.

Note that in synchronous mode this method may block until the whole string is committed to the network connection. In asynchronous mode this method returns immediately; the application is eventually notified that the data has been sent via the DataSent event.

SendBytes Method (SSHClient Component)

Sends an array of bytes to the server.

Syntax

func (obj *SSHClient) SendBytes(Data []byte) error

Remarks

Use this method to send Data to the remote command's stdin channel.

Note that in synchronous mode this method may block until the whole byte array is committed to the network connection. In asynchronous mode this method returns immediately; the application is eventually notified that the data has been sent via the DataSent event.

SendSpecial Method (SSHClient Component)

Sends a special character to the server or remote command.

Syntax

func (obj *SSHClient) SendSpecial(SpecialChar string) error

Remarks

Use this method to send a special or control character to the SSH server or the command being executed. Specify the character id via the SpecialChar parameter.

Currently the only supported special character is "eof", which is sometimes used as a way to close the stdin channel gracefully.

AuthAttempt Event (SSHClient Component)

Fires when a single authentication attempt is performed.

Syntax

// SSHClientAuthAttemptEventArgs carries the SSHClient AuthAttempt event's parameters.
type SSHClientAuthAttemptEventArgs struct {...}

func (args *SSHClientAuthAttemptEventArgs) AuthType() int32
// SSHClientAuthAttemptEvent defines the signature of the SSHClient AuthAttempt event's handler function.
type SSHClientAuthAttemptEvent func(sender *SSHClient, args *SSHClientAuthAttemptEventArgs)

func (obj *SSHClient) GetOnAuthAttemptHandler() SSHClientAuthAttemptEvent
func (obj *SSHClient) SetOnAuthAttemptHandler(handlerFunc SSHClientAuthAttemptEvent)

Remarks

This event is fired each time a single authentication attempt is performed. AuthType parameter specifies the type of authentication. Note, this event could be fired more than once if the client tries different authentication methods one after another.

AuthFailed Event (SSHClient Component)

Fires when a single authentication attempt is failed.

Syntax

// SSHClientAuthFailedEventArgs carries the SSHClient AuthFailed event's parameters.
type SSHClientAuthFailedEventArgs struct {...}

func (args *SSHClientAuthFailedEventArgs) AuthenticationType() int32
// SSHClientAuthFailedEvent defines the signature of the SSHClient AuthFailed event's handler function.
type SSHClientAuthFailedEvent func(sender *SSHClient, args *SSHClientAuthFailedEventArgs)

func (obj *SSHClient) GetOnAuthFailedHandler() SSHClientAuthFailedEvent
func (obj *SSHClient) SetOnAuthFailedHandler(handlerFunc SSHClientAuthFailedEvent)

Remarks

This event is fired each time a single authentication attempt fails. AuthType parameter specifies the type of authentication.

As SSH may try a number of authentication attempts of different types or with different parameters (such as public keys) during one session, this event may be fired more than once. It is not critical and may not lead to closing of the connection.

AuthSucceeded Event (SSHClient Component)

Reports a successful authentication.

Syntax

// SSHClientAuthSucceededEventArgs carries the SSHClient AuthSucceeded event's parameters.
type SSHClientAuthSucceededEventArgs struct {...}

// SSHClientAuthSucceededEvent defines the signature of the SSHClient AuthSucceeded event's handler function.
type SSHClientAuthSucceededEvent func(sender *SSHClient, args *SSHClientAuthSucceededEventArgs)

func (obj *SSHClient) GetOnAuthSucceededHandler() SSHClientAuthSucceededEvent
func (obj *SSHClient) SetOnAuthSucceededHandler(handlerFunc SSHClientAuthSucceededEvent)

Remarks

This event may be preceded by some AuthFailed events if the client tries different authentication methods one after another.

Banner Event (SSHClient Component)

Reports the receipt of the Hello message from the server.

Syntax

// SSHClientBannerEventArgs carries the SSHClient Banner event's parameters.
type SSHClientBannerEventArgs struct {...}

func (args *SSHClientBannerEventArgs) Text() []byte
func (args *SSHClientBannerEventArgs) Language() []byte
// SSHClientBannerEvent defines the signature of the SSHClient Banner event's handler function.
type SSHClientBannerEvent func(sender *SSHClient, args *SSHClientBannerEventArgs)

func (obj *SSHClient) GetOnBannerHandler() SSHClientBannerEvent
func (obj *SSHClient) SetOnBannerHandler(handlerFunc SSHClientBannerEvent)

Remarks

SFTPClient fires this event when it receives hello message from the server.

CommandCompleted Event (SSHClient Component)

Signifies completion of the command execution.

Syntax

// SSHClientCommandCompletedEventArgs carries the SSHClient CommandCompleted event's parameters.
type SSHClientCommandCompletedEventArgs struct {...}

func (args *SSHClientCommandCompletedEventArgs) Command() string
func (args *SSHClientCommandCompletedEventArgs) ExitStatus() int32
func (args *SSHClientCommandCompletedEventArgs) ExitMessage() string
func (args *SSHClientCommandCompletedEventArgs) ExitSignal() string
// SSHClientCommandCompletedEvent defines the signature of the SSHClient CommandCompleted event's handler function.
type SSHClientCommandCompletedEvent func(sender *SSHClient, args *SSHClientCommandCompletedEventArgs)

func (obj *SSHClient) GetOnCommandCompletedHandler() SSHClientCommandCompletedEvent
func (obj *SSHClient) SetOnCommandCompletedHandler(handlerFunc SSHClientCommandCompletedEvent)

Remarks

Subscribe to this event to be notified about completion of the remote command execution. This event fires for every command in the Commands list. The Command parameter indicates the command being completed.

ExitStatus specifies the command's return code. ExitMessage or ExitSignal parameters provide error details if the command execution was terminated forcefully,

CommandStart Event (SSHClient Component)

Marks the commencement of a command execution.

Syntax

// SSHClientCommandStartEventArgs carries the SSHClient CommandStart event's parameters.
type SSHClientCommandStartEventArgs struct {...}

func (args *SSHClientCommandStartEventArgs) Command() string
// SSHClientCommandStartEvent defines the signature of the SSHClient CommandStart event's handler function.
type SSHClientCommandStartEvent func(sender *SSHClient, args *SSHClientCommandStartEventArgs)

func (obj *SSHClient) GetOnCommandStartHandler() SSHClientCommandStartEvent
func (obj *SSHClient) SetOnCommandStartHandler(handlerFunc SSHClientCommandStartEvent)

Remarks

Subscribe to this event to be notified about the start of execution of a remote command. The Command parameter indicates the command being started.

This event is fired for all commands in the Commands list, in order. The completion of the command is reported via the CommandCompleted event.

Connect Event (SSHClient Component)

This event is fired when an SSH session has been established.

Syntax

// SSHClientConnectEventArgs carries the SSHClient Connect event's parameters.
type SSHClientConnectEventArgs struct {...}

// SSHClientConnectEvent defines the signature of the SSHClient Connect event's handler function.
type SSHClientConnectEvent func(sender *SSHClient, args *SSHClientConnectEventArgs)

func (obj *SSHClient) GetOnConnectHandler() SSHClientConnectEvent
func (obj *SSHClient) SetOnConnectHandler(handlerFunc SSHClientConnectEvent)

Remarks

Use this event to track the moment when SSH session has been set up.

DataReceived Event (SSHClient Component)

Reports receipt of another chunk of data from the server.

Syntax

// SSHClientDataReceivedEventArgs carries the SSHClient DataReceived event's parameters.
type SSHClientDataReceivedEventArgs struct {...}

func (args *SSHClientDataReceivedEventArgs) Channel() int32
func (args *SSHClientDataReceivedEventArgs) BytesReceived() int32
func (args *SSHClientDataReceivedEventArgs) TotalBytesPending() int32
// SSHClientDataReceivedEvent defines the signature of the SSHClient DataReceived event's handler function.
type SSHClientDataReceivedEvent func(sender *SSHClient, args *SSHClientDataReceivedEventArgs)

func (obj *SSHClient) GetOnDataReceivedHandler() SSHClientDataReceivedEvent
func (obj *SSHClient) SetOnDataReceivedHandler(handlerFunc SSHClientDataReceivedEvent)

Remarks

This event fires in asynchronous mode to report the receipt of another chunk of data from the server. Use Receive or ReceiveBytes methods to read out the received data.

The Channel parameter indicates the channel on which the data was received: stdout (0) or stderr (1). BytesReceived specify the size of the newly received chunk, and TotalBytesPending contain the total number of bytes available for reading.

Please note that just like other asynchronous mode events this event may fire from a secondary thread. Please make sure your code is prepared for that by using appropriate synchronization facilities.

This event does not fire in synchronous mode.

DataSent Event (SSHClient Component)

Notifies the application that a piece of data has been sent to the server.

Syntax

// SSHClientDataSentEventArgs carries the SSHClient DataSent event's parameters.
type SSHClientDataSentEventArgs struct {...}

func (args *SSHClientDataSentEventArgs) BytesSent() int32
func (args *SSHClientDataSentEventArgs) BytesPending() int32
// SSHClientDataSentEvent defines the signature of the SSHClient DataSent event's handler function.
type SSHClientDataSentEvent func(sender *SSHClient, args *SSHClientDataSentEventArgs)

func (obj *SSHClient) GetOnDataSentHandler() SSHClientDataSentEvent
func (obj *SSHClient) SetOnDataSentHandler(handlerFunc SSHClientDataSentEvent)

Remarks

Subscribe to this event to be notified about the outbound data flow. This event fires following a call to Send or SendBytes methods to notify the application that the data provided has been sent to the server. This event may fire more than once for each Send or SendBytes call, subject to the volume of data being sent and the settings of the server.

The BytesSent parameter specifies the number of bytes that has just been sent to the server. The BytesPending indicate the number of bytes that remain cached in the internal buffer. Any bytes cached in such way will be sent again on the next available opportunity and reported via a separate DataSent event invocation.

Please note that just like other asynchronous mode events this event may fire from a secondary thread. Please make sure your code is prepared for that by using appropriate synchronization facilities.

This event does not fire in synchronous mode.

Disconnect Event (SSHClient Component)

This event is fired when the SFTP subsystem connection is closed.

Syntax

// SSHClientDisconnectEventArgs carries the SSHClient Disconnect event's parameters.
type SSHClientDisconnectEventArgs struct {...}

func (args *SSHClientDisconnectEventArgs) CloseReason() int32
// SSHClientDisconnectEvent defines the signature of the SSHClient Disconnect event's handler function.
type SSHClientDisconnectEvent func(sender *SSHClient, args *SSHClientDisconnectEventArgs)

func (obj *SSHClient) GetOnDisconnectHandler() SSHClientDisconnectEvent
func (obj *SSHClient) SetOnDisconnectHandler(handlerFunc SSHClientDisconnectEvent)

Remarks

Do not perform any file operations after this event has been fired.

Error Event (SSHClient Component)

Information about errors during SFTP connection.

Syntax

// SSHClientErrorEventArgs carries the SSHClient Error event's parameters.
type SSHClientErrorEventArgs struct {...}

func (args *SSHClientErrorEventArgs) ErrorCode() int32
func (args *SSHClientErrorEventArgs) Description() string
// SSHClientErrorEvent defines the signature of the SSHClient Error event's handler function.
type SSHClientErrorEvent func(sender *SSHClient, args *SSHClientErrorEventArgs)

func (obj *SSHClient) GetOnErrorHandler() SSHClientErrorEvent
func (obj *SSHClient) SetOnErrorHandler(handlerFunc SSHClientErrorEvent)

Remarks

The event is fired in case of exceptional conditions during data transfer.

ErrorCode contains an error code and Description contains a textual description of the error. For a list of error codes please refer to SFTP.

ExternalSign Event (SSHClient Component)

Handles remote or external signing initiated by the SignExternal method or other source.

Syntax

// SSHClientExternalSignEventArgs carries the SSHClient ExternalSign event's parameters.
type SSHClientExternalSignEventArgs struct {...}

func (args *SSHClientExternalSignEventArgs) OperationId() string
func (args *SSHClientExternalSignEventArgs) HashAlgorithm() string
func (args *SSHClientExternalSignEventArgs) Pars() string
func (args *SSHClientExternalSignEventArgs) Data() string
func (args *SSHClientExternalSignEventArgs) SignedData() string
func (args *SSHClientExternalSignEventArgs) SetSignedData(value string)

// SSHClientExternalSignEvent defines the signature of the SSHClient ExternalSign event's handler function.
type SSHClientExternalSignEvent func(sender *SSHClient, args *SSHClientExternalSignEventArgs)

func (obj *SSHClient) GetOnExternalSignHandler() SSHClientExternalSignEvent
func (obj *SSHClient) SetOnExternalSignHandler(handlerFunc SSHClientExternalSignEvent)

Remarks

Assign a handler to this event if you need to delegate a low-level signing operation to an external, remote, or custom signing engine. Depending on the settings, the handler will receive a hashed or unhashed value to be signed.

The event handler must pass the value of Data to the signer, obtain the signature, and pass it back to the struct via the SignedData parameter.

OperationId provides a comment about the operation and its origin. It depends on the exact struct being used, and may be empty. HashAlgorithm specifies the hash algorithm being used for the operation, and Pars contains algorithm-dependent parameters.

The struct uses base16 (hex) encoding for the Data, SignedData, and Pars parameters. If your signing engine uses a different input and output encoding, you may need to decode and/or encode the data before and/or after the signing.

A sample MD5 hash encoded in base16: a0dee2a0382afbb09120ffa7ccd8a152 - lower case base16 A0DEE2A0382AFBB09120FFA7CCD8A152 - upper case base16

A sample event handler that uses the .NET RSACryptoServiceProvider class may look like the following: signer.OnExternalSign += (s, e) => { var cert = new X509Certificate2("cert.pfx", "", X509KeyStorageFlags.Exportable); var key = (RSACryptoServiceProvider)cert.PrivateKey; var dataToSign = e.Data.FromBase16String(); var signedData = key.SignHash(dataToSign, "2.16.840.1.101.3.4.2.1"); e.SignedData = signedData.ToBase16String(); };

KnownKeyReceived Event (SSHClient Component)

Signals that the server has introduced itself with a known key.

Syntax

// SSHClientKnownKeyReceivedEventArgs carries the SSHClient KnownKeyReceived event's parameters.
type SSHClientKnownKeyReceivedEventArgs struct {...}

func (args *SSHClientKnownKeyReceivedEventArgs) Algorithm() string
func (args *SSHClientKnownKeyReceivedEventArgs) Bits() int32
func (args *SSHClientKnownKeyReceivedEventArgs) FingerprintSHA256() string
// SSHClientKnownKeyReceivedEvent defines the signature of the SSHClient KnownKeyReceived event's handler function.
type SSHClientKnownKeyReceivedEvent func(sender *SSHClient, args *SSHClientKnownKeyReceivedEventArgs)

func (obj *SSHClient) GetOnKnownKeyReceivedHandler() SSHClientKnownKeyReceivedEvent
func (obj *SSHClient) SetOnKnownKeyReceivedHandler(handlerFunc SSHClientKnownKeyReceivedEvent)

Remarks

The struct fires this event to tell the application that the server has introduced itself with a known key from TrustedKeysFile.

The details of the key are provided: Algorithm and Bits specify the key algorithm and the number of bits. FingerprintSHA256 contains the key's fingerprint.

Use ServerKey to access more key details.

Notification Event (SSHClient Component)

This event notifies the application about an underlying control flow event.

Syntax

// SSHClientNotificationEventArgs carries the SSHClient Notification event's parameters.
type SSHClientNotificationEventArgs struct {...}

func (args *SSHClientNotificationEventArgs) EventID() string
func (args *SSHClientNotificationEventArgs) EventParam() string
// SSHClientNotificationEvent defines the signature of the SSHClient Notification event's handler function.
type SSHClientNotificationEvent func(sender *SSHClient, args *SSHClientNotificationEventArgs)

func (obj *SSHClient) GetOnNotificationHandler() SSHClientNotificationEvent
func (obj *SSHClient) SetOnNotificationHandler(handlerFunc SSHClientNotificationEvent)

Remarks

The struct fires this event to let the application know about some event, occurrence, or milestone in the struct. For example, it may fire to report completion of the document processing. The list of events being reported is not fixed, and may be flexibly extended over time.

The unique identifier of the event is provided in the EventID parameter. EventParam contains any parameters accompanying the occurrence. Depending on the type of the struct, the exact action it is performing, or the document being processed, one or both may be omitted.

PasswordChangeRequest Event (SSHClient Component)

This event is fired when a password change is requested.

Syntax

// SSHClientPasswordChangeRequestEventArgs carries the SSHClient PasswordChangeRequest event's parameters.
type SSHClientPasswordChangeRequestEventArgs struct {...}

func (args *SSHClientPasswordChangeRequestEventArgs) Prompt() string
func (args *SSHClientPasswordChangeRequestEventArgs) NewPassword() string
func (args *SSHClientPasswordChangeRequestEventArgs) SetNewPassword(value string)

func (args *SSHClientPasswordChangeRequestEventArgs) Cancel() bool
func (args *SSHClientPasswordChangeRequestEventArgs) SetCancel(value bool)

// SSHClientPasswordChangeRequestEvent defines the signature of the SSHClient PasswordChangeRequest event's handler function.
type SSHClientPasswordChangeRequestEvent func(sender *SSHClient, args *SSHClientPasswordChangeRequestEventArgs)

func (obj *SSHClient) GetOnPasswordChangeRequestHandler() SSHClientPasswordChangeRequestEvent
func (obj *SSHClient) SetOnPasswordChangeRequestHandler(handlerFunc SSHClientPasswordChangeRequestEvent)

Remarks

This event is fired by the struct when a password change is requested by the server. Prompt contains the password prompt message. Handler should either provide the new password via NewPassword, or deny the request by setting Cancel to true.

PrivateKeyNeeded Event (SSHClient Component)

This event is fired when client's public key was accepted by the server, but the corresponding secret key is not available.

Syntax

// SSHClientPrivateKeyNeededEventArgs carries the SSHClient PrivateKeyNeeded event's parameters.
type SSHClientPrivateKeyNeededEventArgs struct {...}

func (args *SSHClientPrivateKeyNeededEventArgs) Skip() bool
func (args *SSHClientPrivateKeyNeededEventArgs) SetSkip(value bool)

// SSHClientPrivateKeyNeededEvent defines the signature of the SSHClient PrivateKeyNeeded event's handler function.
type SSHClientPrivateKeyNeededEvent func(sender *SSHClient, args *SSHClientPrivateKeyNeededEventArgs)

func (obj *SSHClient) GetOnPrivateKeyNeededHandler() SSHClientPrivateKeyNeededEvent
func (obj *SSHClient) SetOnPrivateKeyNeededHandler(handlerFunc SSHClientPrivateKeyNeededEvent)

Remarks

Set Skip to true when it is not possible to load the missing key for some reason.

UnknownKeyReceived Event (SSHClient Component)

Signals that the server has introduced itself with an unknown key.

Syntax

// SSHClientUnknownKeyReceivedEventArgs carries the SSHClient UnknownKeyReceived event's parameters.
type SSHClientUnknownKeyReceivedEventArgs struct {...}

func (args *SSHClientUnknownKeyReceivedEventArgs) Algorithm() string
func (args *SSHClientUnknownKeyReceivedEventArgs) Bits() int32
func (args *SSHClientUnknownKeyReceivedEventArgs) FingerprintSHA256() string
func (args *SSHClientUnknownKeyReceivedEventArgs) Action() int32
func (args *SSHClientUnknownKeyReceivedEventArgs) SetAction(value int32)

// SSHClientUnknownKeyReceivedEvent defines the signature of the SSHClient UnknownKeyReceived event's handler function.
type SSHClientUnknownKeyReceivedEvent func(sender *SSHClient, args *SSHClientUnknownKeyReceivedEventArgs)

func (obj *SSHClient) GetOnUnknownKeyReceivedHandler() SSHClientUnknownKeyReceivedEvent
func (obj *SSHClient) SetOnUnknownKeyReceivedHandler(handlerFunc SSHClientUnknownKeyReceivedEvent)

Remarks

The struct fires this event to tell the application that the server has introduced itself with a key not present in TrustedKeysFile.

The details of the key are provided: Algorithm and Bits specify the key algorithm and the number of bits. FingerprintSHA256 contains the key's fingerprint.

In this event handler, you need to make a decision whether to proceed with the connection. Use Action to tell the struct what it should do with the key:


catAcceptOnce	`1`	Accept the key for the current session only.
catAcceptPermanently	`2`	Accept the key for the current session and store the key to the trusted keys list.
catReject	`3`	Reject the key and close the connection.

Note that accepting an unknown and unchecked key may be risky.

Config Settings (SSHClient Component)

The struct accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the struct, access to these internal properties is provided through the Config method.

SSHClient Config Settings

AllAlgorithms: Returns the list of algorithms enabled in the component.

Use this configuration setting to obtain the list of algorithms currently enabled in the component in the kexinit format.

BlockSize: The data block size.

This property specifies the data block size to use.

CommandTimeout: Specifies the command timeout.

Specifies the command timeout (the maximum time to expect the result from the SSH command), in milliseconds.

CompressionAlgorithms: Returns the list of compression algorithms enabled in the component.

Use this configuration setting to get the list of compression algorithms currently enabled in the component, as a respective kexinit block line.

EarlyIdString: Enables the proactive approach to SSH handshake.

The rule of thumb in the majority of SSH environments is for the server to initiate the handshake with its identification string (and for the client to respond). By setting this property to true you can tell the client to initiate the handshake by sending out the identification string proactively without waiting for the server to send one in. This setting may help in situations where your SSH or SFTP connection fails unexpectedly due to a timeout or network error.

EncryptionAlgorithms: Returns the list of encryption algorithms enabled in the component.

Use this configuration setting to get the list of symmetric encryption algorithms currently enabled in the component, as a respective kexinit block line.

ErrorOrigin: Specifies whether the error is local or remote.

Use this property to check where the error took place.

ErrorSeverity: Specifies whether the error is fatal.

Use this property to check whether the error is fatal or not.

KexAlgorithms: Returns the list of key exchange algorithms enabled in the component.

Use this configuration setting to get the list of key exchange algorithms currently enabled in the component, as a respective kexinit block line.

LocalCharset: Charset used on the client machine.

This property specifies the charset used on the local client computer.

MacAlgorithms: Returns the list of MAC algorithms enabled in the component.

Use this configuration setting to get the list of MAC algorithms currently enabled in the component, as a respective kexinit block line.

PublicKeyAlgorithms: Returns the list of public key algorithms enabled in the component.

Use this configuration setting to get the list of public key algorithms currently enabled in the component, as a respective kexinit block line.

RemoteCharset: Charset used on the server.

This property specifies the charset used on the server.

SendCommandEOF: Defines whether EOF control character should be sent after the command data.

Enable this property to enforce sending of a trailing EOF character after the command data.

ThrottleControl: Enables or disables throttle control for the connection.

Use this property to enable or disable throttle control.

UseStrictKeyExchange: Specifies how strict key exchange is supported.

This setting controls whether strict key exchange (strict kex) is enabled to mitigate the Terrapin attack. When enabled, the struct will indicate support for strict key exchange by automatically including the pseudo-algorithm kex-strict-c-v00@openssh.com for client structs and kex-strict-s-v00@openssh.com for server structs in the list of supported key exchange algorithms.

Since both client and server must implement strict key exchange to effectively mitigate the Terrapin attack, the struct provides options to further control the behavior in different scenarios. Possible values for this setting are:


`0`	Disabled. Strict key exchange is not supported in the struct.
`1` (default)	Enabled, but not enforced. This setting enables strict key exchange, but if the remote host does not support strict key exchange the connection is still allowed to continue.
`2`	Enabled, but reject affected algorithms if the remote host does not support strict key exchange. If the remote host supports strict key exchange all algorithms may be used. If the remote host does not support strict key exchange the connection will only continue if the selected encryption and MAC algorithms are not affected by the Terrapin attack.
`3`	Required. If the remote host does not support strict key exchange the connection will fail.

Base Config Settings

ASN1UseGlobalTagCache: Controls whether ASN.1 module should use a global object cache.

This is a performance setting. It is unlikely that you will ever need to adjust it.

AssignSystemSmartCardPins: Specifies whether CSP-level PINs should be assigned to CNG keys.

This is a low-level tweak for certain cryptographic providers. It is unlikely that you will ever need to adjust it.

CheckKeyIntegrityBeforeUse: Enables or disable private key integrity check before use.

This global property enables or disables private key material check before each signing operation. This slows down performance a bit, but prevents a selection of attacks on RSA keys where keys with unknown origins are used.

You can switch this property off to improve performance if your project only uses known, good private keys.

CookieCaching: Specifies whether a cookie cache should be used for HTTP(S) transports.

Set this property to enable or disable cookies caching for the struct.

Supported values are:


off		No caching (default)
local		Local caching
global		Global caching

Cookies: Gets or sets local cookies for the struct.

Use this property to get cookies from the internal cookie storage of the struct and/or restore them back between application sessions.

DefDeriveKeyIterations: Specifies the default key derivation algorithm iteration count.

This global property sets the default number of iterations for all supported key derivation algorithms. Note that you can provide the required number of iterations by using properties of the relevant key generation component; this global setting is used in scenarios where specific iteration count is not or cannot be provided.

DNSLocalSuffix: The suffix to assign for TLD names.

Use this global setting to adjust the default suffix to assign to top-level domain names. The default is .local.

EnableClientSideSSLFFDHE: Enables or disables finite field DHE key exchange support in TLS clients.

This global property enables or disables support for finite field DHE key exchange methods in TLS clients. FF DHE is a slower algorithm if compared to EC DHE; enabling it may result in slower connections.

This setting only applies to sessions negotiated with TLS version 1.3.

EnableSSHMLKEM: Enables support for ML-KEM/hybrid key exchange algorithms in SSH client and server components.

Use this setting to enable hybrid key exchange algorithms in client and server SSH and SFTP components. This is a global setting that enables ML-KEM blanketly in all SSH-dependent components.

EnableTLSMLKEM: Enables support for ML-KEM and hybrid groups in TLS client and server components.

Use this setting to enable ML-KEM and hybrid key exchange groups in client and server TLS components. This is a global setting that enables ML-KEM blanketly in all TLS-dependent components.

GlobalCookies: Gets or sets global cookies for all the HTTP transports.

Use this property to get cookies from the GLOBAL cookie storage or restore them back between application sessions. These cookies will be used by all the structs that have its CookieCaching property set to "global".

HardwareCryptoUsePolicy: The hardware crypto usage policy.

This global setting controls the hardware cryptography usage policy.

Supported Values:


auto	Use hardware cryptography if available; otherwise, fall back to software-based cryptography (default).
enable	Always attempt to use hardware cryptography. If unavailable, exception will be thrown.
disable	Do not use hardware cryptography.

HttpUserAgent: Specifies the user agent name to be used by all HTTP clients.

This global setting defines the User-Agent field of the HTTP request provides information about the software that initiates the request. This value will be used by all the HTTP clients including the ones used internally in other structs.

HttpVersion: The HTTP version to use in any inner HTTP client components created.

Set this property to 1.0 or 1.1 to indicate the HTTP version that any internal HTTP clients should use.

IgnoreExpiredMSCTLSigningCert: Whether to tolerate the expired Windows Update signing certificate.

It is not uncommon for Microsoft Windows Update Certificate Trust List to be signed with an expired Microsoft certificate. Setting this global property to true makes SBB ignore the expired factor and take the Trust List into account.

ListDelimiter: The delimiter character for multi-element lists.

Allows to set the delimiter for any multi-entry values returned by the component as a string object, such as file lists. For most of the components, this property is set to a newline sequence.

LogDestination: Specifies the debug log destination.

Contains a comma-separated list of values that specifies where debug log should be dumped.

Supported values are:


file		File
console		Console
systemlog		System Log (supported for Android only)
debugger		Debugger (supported for VCL for Windows and .Net)

LogDetails: Specifies the debug log details to dump.

Contains a comma-separated list of values that specifies which debug log details to dump.

Supported values are:


time		Current time
level		Level
package		Package name
module		Module name
class		Class name
method		Method name
threadid		Thread Id
contenttype		Content type
content		Content
all		All details

LogFile: Specifies the debug log filename.

Use this property to provide a path to the log file.

LogFilters: Specifies the debug log filters.

Contains a comma-separated list of value pairs ("name:value") that describe filters.

Supported filter names are:


exclude-package		Exclude a package specified in the value
exclude-module		Exclude a module specified in the value
exclude-class		Exclude a class specified in the value
exclude-method		Exclude a method specified in the value
include-package		Include a package specified in the value
include-module		Include a module specified in the value
include-class		Include a class specified in the value
include-method		Include a method specified in the value

LogFlushMode: Specifies the log flush mode.

Use this property to set the log flush mode. The following values are defined:


none		No flush (caching only)
immediate		Immediate flush (real-time logging)
maxcount		Flush cached entries upon reaching LogMaxEventCount entries in the cache.

LogLevel: Specifies the debug log level.

Use this property to provide the desired debug log level.

Supported values are:


none		None (by default)
fatal		Severe errors that cause premature termination.
error		Other runtime errors or unexpected conditions.
warning		Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong".
info		Interesting runtime events (startup/shutdown).
debug		Detailed information on flow of through the system.
trace		More detailed information.

LogMaxEventCount: Specifies the maximum number of events to cache before further action is taken.

Use this property to specify the log event number threshold. This threshold may have different effects, depending on the rotation setting and/or the flush mode.

The default value of this setting is 100.

LogRotationMode: Specifies the log rotation mode.

Use this property to set the log rotation mode. The following values are defined:


none		No rotation
deleteolder		Delete older entries from the cache upon reaching LogMaxEventCount
keepolder		Keep older entries in the cache upon reaching LogMaxEventCount (newer entries are discarded)

MaxASN1BufferLength: Specifies the maximal allowed length for ASN.1 primitive tag data.

This global property limits the maximal allowed length for ASN.1 tag data for non-content-carrying structures, such as certificates, CRLs, or timestamps. It does not affect structures that can carry content, such as CMS/CAdES messages. This is a security property aiming at preventing DoS attacks.

MaxASN1TreeDepth: Specifies the maximal depth for processed ASN.1 trees.

This global property limits the maximal depth of ASN.1 trees that the component can handle without throwing an error. This is a security property aiming at preventing DoS attacks.

OCSPHashAlgorithm: Specifies the hash algorithm to be used to identify certificates in OCSP requests.

This global setting defines the hash algorithm to use in OCSP requests during chain validation. Some OCSP responders can only use older algorithms, in which case setting this property to SHA1 may be helpful.

OldClientSideRSAFallback: Specifies whether the SSH client should use a SHA1 fallback.

Tells the SSH client to use a legacy ssh-rsa authentication even if the server indicates support for newer algorithms, such as rsa-sha-256. This is a backward-compatibility tweak.

PKICache: Specifies which PKI elements (certificates, CRLs, OCSP responses) should be cached.

The PKICache setting specifies which Public Key Infrastructure (PKI) elements should be cached to optimize performance and reduce retrieval times. It supports comma-separated values to indicate the specific types of PKI data that should be cached.

Supported Values:


certificate	Enables caching of certificates.
crl	Enables caching of Certificate Revocation Lists (CRLs).
ocsp	Enables caching of OCSP (Online Certificate Status Protocol) responses.

Example (default value): PKICache=certificate,crl,ocsp In this example, the component caches certificates, CRLs, and OCSP responses.

PKICachePath: Specifies the file system path where cached PKI data is stored.

The PKICachePath setting defines the file system path where cached PKI data (e.g., certificates, CRLs, OCSP responses and Trusted Lists) will be stored. This allows the system to persistently save and retrieve PKI cache data, even across application restarts.

The default value is an empty string - no cached PKI data is stored on disk.

Example: PKICachePath=C:\Temp\cache In this example, the cached PKI data is stored in the C:\Temp\cache directory.

ProductVersion: Returns the version of the SecureBlackbox library.

This property returns the long version string of the SecureBlackbox library being used (major.minor.build.revision).

ServerSSLDHKeyLength: Sets the size of the TLS DHE key exchange group.

Use this property to adjust the length, in bits, of the DHE prime to be used by the TLS server.

StaticDNS: Specifies whether static DNS rules should be used.

Set this property to enable or disable static DNS rules for the struct. Works only if UseOwnDNSResolver is set to true.

Supported values are:


none		No static DNS rules (default)
local		Local static DNS rules
global		Global static DNS rules

StaticIPAddress[domain]: Gets or sets an IP address for the specified domain name.

Use this property to get or set an IP address for the specified domain name in the internal (of the struct) or global DNS rules storage depending on the StaticDNS value. The type of the IP address (IPv4 or IPv6) is determined automatically. If both addresses are available, they are divided by the | (pipe) character.

StaticIPAddresses: Gets or sets all the static DNS rules.

Use this property to get static DNS rules from the current rules storage or restore them back between application sessions. If StaticDNS of the struct is set to "local", the property returns/restores the rules from/to the internal storage of the struct. If StaticDNS of the struct is set to "global", the property returns/restores the rules from/to the GLOBAL storage. The rules list is returned and accepted in JSON format.

Tag: Allows to store any custom data.

Use this config property to store any custom data.

TLSSessionGroup: Specifies the group name of TLS sessions to be used for session resumption.

Use this property to limit the search of cached TLS sessions to the specified group. Sessions from other groups will be ignored. By default, all sessions are cached with an empty group name and available to all the structs.

TLSSessionLifetime: Specifies lifetime in seconds of the cached TLS session.

Use this property to specify how much time the TLS session should be kept in the session cache. After this time, the session expires and will be automatically removed from the cache. Default value is 300 seconds (5 minutes).

TLSSessionPurgeInterval: Specifies how often the session cache should remove the expired TLS sessions.

Use this property to specify the time interval of purging the expired TLS sessions from the session cache. Default value is 60 seconds (1 minute).

UseCRLObjectCaching: Specifies whether reuse of loaded CRL objects is enabled.

This setting enables or disables the caching of CRL objects. When set to true (the default value), the system checks if a CRL object is already loaded in memory before attempting to load a new instance. If the object is found, the existing instance is reused, and its reference count is incremented to track its usage. When the reference count reaches zero, indicating that no references to the object remain, the system will free the object from memory. This setting enhances performance by minimizing unnecessary object instantiation and promotes efficient memory management, particularly in scenarios where CRL objects are frequently used.

UseInternalRandom: Switches between SecureBlackbox-own and platform PRNGs.

Allows to switch between internal/native PRNG implementation and the one provided by the platform.

UseLegacyAdESValidation: Enables legacy AdES validation mode.

Use this setting to switch the AdES component to the validation approach that was used in SBB 2020/SBB 2022 (less attention to temporal details).

UseOCSPResponseObjectCaching: Specifies whether reuse of loaded OCSP response objects is enabled.

This setting enables or disables the caching of OCSP response objects. When set to true (the default value), the system checks if a OCSP response object is already loaded in memory before attempting to load a new instance. If the object is found, the existing instance is reused, and its reference count is incremented to track its usage. When the reference count reaches zero, indicating that no references to the object remain, the system will free the object from memory. This setting enhances performance by minimizing unnecessary object instantiation and promotes efficient memory management, particularly in scenarios where OCSP response objects are frequently used.

UseOwnDNSResolver: Specifies whether the client components should use own DNS resolver.

Set this global property to false to force all the client components to use the DNS resolver provided by the target OS instead of using own one.

UseSharedSystemStorages: Specifies whether the validation engine should use a global per-process copy of the system certificate stores.

Set this global property to false to make each validation run use its own copy of system certificate stores.

UseSystemNativeSizeCalculation: An internal CryptoAPI access tweak.

This is an internal setting. Please do not use it unless instructed by the support team.

UseSystemOAEPAndPSS: Enforces or disables the use of system-driven RSA OAEP and PSS computations.

This global setting defines who is responsible for performing RSA-OAEP and RSA-PSS computations where the private key is stored in a Windows system store and is exportable. If set to true, SBB will delegate the computations to Windows via a CryptoAPI call. Otherwise, it will export the key material and perform the computations using its own OAEP/PSS implementation.

This setting only applies to certificates originating from a Windows system store.

UseSystemRandom: Enables or disables the use of the OS PRNG.

Use this global property to enable or disable the use of operating system-driven pseudorandom number generation.

XMLRDNDescriptorName[OID]: Defines an OID mapping to descriptor names for the certificate's IssuerRDN or SubjectRDN.

This property defines custom mappings between Object Identifiers (OIDs) and descriptor names. This mapping specifies how the certificate's issuer and subject information (ds:IssuerRDN and ds:SubjectRDN elements respectively) are represented in XML signatures.

The property accepts comma-separated values where the first descriptor name is used when the OID is mapped, and subsequent values act as aliases for parsing.

Syntax: Config("XMLRDNDescriptorName[OID]=PrimaryName,Alias1,Alias2");

Where:

OID: The Object Identifier from the certificate's IssuerRDN or SubjectRDN that you want to map.

PrimaryName: The main descriptor name used in the XML signature when the OID is encountered.

Alias1, Alias2, ...: Optional alternative names recognized during parsing.

Usage Examples:

Map OID 2.5.4.5 to SERIALNUMBER: Config("XMLRDNDescriptorName[2.5.4.5]=SERIALNUMBER");

Map OID 1.2.840.113549.1.9.1 to E, with aliases EMAIL and EMAILADDRESS: Config("XMLRDNDescriptorName[1.2.840.113549.1.9.1]=E,EMAIL,EMAILADDRESS");

XMLRDNDescriptorPriority[OID]: Specifies the priority of descriptor names associated with a specific OID.

This property specifies the priority of descriptor names associated with a specific OID that allows to reorder descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during signing.

XMLRDNDescriptorReverseOrder: Specifies whether to reverse the order of descriptors in RDN.

Specifies whether to reverse the order of descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during XML signing. By default, this property is set to true (as specified in RFC 2253, 2.1).

XMLRDNDescriptorSeparator: Specifies the separator used between descriptors in RDN.

Specifies the separator used between descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during XML signing. By default, this property is set to ", " value.

Trappable Errors (SSHClient Component)