PublicKeyCrypto Class

Properties   Methods   Events   Config Settings   Errors  

The PublicKeyCrypto class supports encrypting, decrypting, signing and verifying messages.

Syntax

class secureblackbox.PublicKeyCrypto

Remarks

PublicKeyCrypto allows you to encrypt, decrypt, sign and verify uninterpreted data. It implements low-level, or "raw" cryptographic primitives, such as RSA-PKCS1. The cryptographic primitives are typically used internally in higher-level protocols, such as CMS or PGP.

Cryptographic primitives work on small quantities of data (up to a few kilobytes). If you are looking to encrypt or sign large blobs of data, it is very likely that you need to use higher-level classes, such as MessageEncryptor, CAdESSigner, or PGPWriter.

A code snippet below illustrates the use of PublicKeyCrypto to encrypt (and decrypt) a data piece with OpenSSL-generated RSA keypair. procedure TForm1.HandleKeyPasswordNeeded(Sender: TObject; const NeededFor: String; var Password: String; var Cancel: Boolean); begin Password := 'key-password'; end; procedure TForm1.btnRSAEncryptClick(Sender: TObject); var Crypto : TsbxPublicKeyCrypto; KeyMgr : TsbxCryptoKeyManager; Plaintext, Ciphertext, Decrypted : TBytes; begin // prep Plaintext := TEncoding.UTF8.GetBytes('Hello, World!'); // encryption KeyMgr := TsbxCryptoKeyManager.Create(nil); try KeyMgr.ImportFromFile('public.pem', kffPEM, '', '', '', ktPublic); Crypto := TsbxPublicKeyCrypto.Create(nil); try Crypto.Key := KeyMgr.Key; Ciphertext := Crypto.Encrypt(Plaintext); finally FreeAndNil(Crypto); end; finally FreeAndNil(KeyMgr); end; // decryption KeyMgr := TsbxCryptoKeyManager.Create(nil); try KeyMgr.OnPasswordNeeded := HandleKeyPasswordNeeded; KeyMgr.ImportFromFile('private.pem', kffPEM, '', '', '', ktSecret); Crypto := TsbxPublicKeyCrypto.Create(nil); try Crypto.Key := KeyMgr.Key; Decrypted := Crypto.Decrypt(Ciphertext); finally FreeAndNil(Crypto); end; finally FreeAndNil(KeyMgr); end; ShowMessage(TEncoding.UTF8.GetString(Decrypted)); end;

Property List


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

can_encryptReturns true if the crypto object can be used for encryption.
can_signReturns true if the crypto object is capable of data signing.
fips_modeReserved.
hash_algorithmThe hash algorithm to be used during the crypto operation.
input_encodingThe encoding to apply to the input data.
input_is_hashIndicates whether the input data contains the hash or the actual data.
json_key_header_paramsContains key header parameters.
json_protected_headerProvides access to the header being protected.
json_unprotected_headerProvides access to the unprotected part of the header.
json_unprotected_header_paramsContains unprotected header parameters.
key_handleAllows to get or set a 'handle', a unique identifier of the underlying property object.
key_keyThe byte array representation of the key.
output_encodingThe encoding type to apply to the output data.
schemeThe algorithm scheme to use.
scheme_paramsThe algorithm scheme parameters to employ.
signature_validation_resultThe signature validation result.

Method List


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

configSets or retrieves a configuration setting.
decryptDecrypts a buffer.
decrypt_fileDecrypts a file.
do_actionPerforms an additional action.
encryptEncrypts a buffer.
encrypt_fileEncrypts a file.
resetResets the class settings.
signSigns a buffer.
sign_fileSigns a file.
verifyVerifies an enveloped or enveloping signature contained in a buffer.
verify_detachedVerifies a detached signature.
verify_detached_fileVerifies a detached signature.
verify_fileVerifies an enveloped or enveloping signature contained in a file.

Event List


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

on_errorReports error information during a crypto operation.
on_notificationThis event notifies the application about an underlying control flow event.

Config Settings


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

TempPathPath for storing temporary files.
UseAlgorithmPrefixEnables or disables the PKCS#1 ASN.1 algorithm prefix.
ASN1UseGlobalTagCacheControls whether ASN.1 module should use a global object cache.
AssignSystemSmartCardPinsSpecifies whether CSP-level PINs should be assigned to CNG keys.
CheckKeyIntegrityBeforeUseEnables or disable private key integrity check before use.
CookieCachingSpecifies whether a cookie cache should be used for HTTP(S) transports.
CookiesGets or sets local cookies for the class.
DefDeriveKeyIterationsSpecifies the default key derivation algorithm iteration count.
DNSLocalSuffixThe suffix to assign for TLD names.
EnableClientSideSSLFFDHEEnables or disables finite field DHE key exchange support in TLS clients.
GlobalCookiesGets or sets global cookies for all the HTTP transports.
HardwareCryptoUsePolicyThe hardware crypto usage policy.
HttpUserAgentSpecifies the user agent name to be used by all HTTP clients.
HttpVersionThe HTTP version to use in any inner HTTP client classes created.
IgnoreExpiredMSCTLSigningCertWhether to tolerate the expired Windows Update signing certificate.
ListDelimiterThe delimiter character for multi-element lists.
LogDestinationSpecifies the debug log destination.
LogDetailsSpecifies the debug log details to dump.
LogFileSpecifies the debug log filename.
LogFiltersSpecifies the debug log filters.
LogFlushModeSpecifies the log flush mode.
LogLevelSpecifies the debug log level.
LogMaxEventCountSpecifies the maximum number of events to cache before further action is taken.
LogRotationModeSpecifies the log rotation mode.
MaxASN1BufferLengthSpecifies the maximal allowed length for ASN.1 primitive tag data.
MaxASN1TreeDepthSpecifies the maximal depth for processed ASN.1 trees.
OCSPHashAlgorithmSpecifies the hash algorithm to be used to identify certificates in OCSP requests.
OldClientSideRSAFallbackSpecifies whether the SSH client should use a SHA1 fallback.
ProductVersionReturns the version of the SecureBlackbox library.
ServerSSLDHKeyLengthSets the size of the TLS DHE key exchange group.
StaticDNSSpecifies whether static DNS rules should be used.
StaticIPAddress[domain]Gets or sets an IP address for the specified domain name.
StaticIPAddressesGets or sets all the static DNS rules.
TagAllows to store any custom data.
TLSSessionGroupSpecifies the group name of TLS sessions to be used for session resumption.
TLSSessionLifetimeSpecifies lifetime in seconds of the cached TLS session.
TLSSessionPurgeIntervalSpecifies how often the session cache should remove the expired TLS sessions.
UseInternalRandomSwitches between SecureBlackbox-own and platform PRNGs.
UseLegacyAdESValidationEnables legacy AdES validation mode.
UseOwnDNSResolverSpecifies whether the client classes should use own DNS resolver.
UseSharedSystemStoragesSpecifies whether the validation engine should use a global per-process copy of the system certificate stores.
UseSystemNativeSizeCalculationAn internal CryptoAPI access tweak.
UseSystemOAEPAndPSSEnforces or disables the use of system-driven RSA OAEP and PSS computations.
UseSystemRandomEnables or disables the use of the OS PRNG.

can_encrypt Property

Returns true if the crypto object can be used for encryption.

Syntax

def get_can_encrypt() -> bool: ...

can_encrypt = property(get_can_encrypt, None)

Default Value

FALSE

Remarks

This property returns true if the crypto object can be used for encryption and decryption. This capability depends on the cryptographic algorithm.

This property is read-only.

can_sign Property

Returns true if the crypto object is capable of data signing.

Syntax

def get_can_sign() -> bool: ...

can_sign = property(get_can_sign, None)

Default Value

FALSE

Remarks

This property returns true if the crypto object can be used for signing data and validating signatures. This capability depends on the cryptographic algorithm.

This property is read-only.

fips_mode Property

Reserved.

Syntax

def get_fips_mode() -> bool: ...
def set_fips_mode(value: bool) -> None: ...

fips_mode = property(get_fips_mode, set_fips_mode)

Default Value

FALSE

Remarks

This property is reserved for future use.

hash_algorithm Property

The hash algorithm to be used during the crypto operation.

Syntax

def get_hash_algorithm() -> str: ...
def set_hash_algorithm(value: str) -> None: ...

hash_algorithm = property(get_hash_algorithm, set_hash_algorithm)

Default Value

"SHA256"

Remarks

Use this property to adjust the hash to be used during the cryptographic operation. This typically applies to signing and verification, but can also apply to more complex encryption primitives, such as RSA-OEAP.

SB_HASH_ALGORITHM_SHA1SHA1
SB_HASH_ALGORITHM_SHA224SHA224
SB_HASH_ALGORITHM_SHA256SHA256
SB_HASH_ALGORITHM_SHA384SHA384
SB_HASH_ALGORITHM_SHA512SHA512
SB_HASH_ALGORITHM_MD2MD2
SB_HASH_ALGORITHM_MD4MD4
SB_HASH_ALGORITHM_MD5MD5
SB_HASH_ALGORITHM_RIPEMD160RIPEMD160
SB_HASH_ALGORITHM_CRC32CRC32
SB_HASH_ALGORITHM_SSL3SSL3
SB_HASH_ALGORITHM_GOST_R3411_1994GOST1994
SB_HASH_ALGORITHM_WHIRLPOOLWHIRLPOOL
SB_HASH_ALGORITHM_POLY1305POLY1305
SB_HASH_ALGORITHM_SHA3_224SHA3_224
SB_HASH_ALGORITHM_SHA3_256SHA3_256
SB_HASH_ALGORITHM_SHA3_384SHA3_384
SB_HASH_ALGORITHM_SHA3_512SHA3_512
SB_HASH_ALGORITHM_BLAKE2S_128BLAKE2S_128
SB_HASH_ALGORITHM_BLAKE2S_160BLAKE2S_160
SB_HASH_ALGORITHM_BLAKE2S_224BLAKE2S_224
SB_HASH_ALGORITHM_BLAKE2S_256BLAKE2S_256
SB_HASH_ALGORITHM_BLAKE2B_160BLAKE2B_160
SB_HASH_ALGORITHM_BLAKE2B_256BLAKE2B_256
SB_HASH_ALGORITHM_BLAKE2B_384BLAKE2B_384
SB_HASH_ALGORITHM_BLAKE2B_512BLAKE2B_512
SB_HASH_ALGORITHM_SHAKE_128SHAKE_128
SB_HASH_ALGORITHM_SHAKE_256SHAKE_256
SB_HASH_ALGORITHM_SHAKE_128_LENSHAKE_128_LEN
SB_HASH_ALGORITHM_SHAKE_256_LENSHAKE_256_LEN

input_encoding Property

The encoding to apply to the input data.

Syntax

def get_input_encoding() -> int: ...
def set_input_encoding(value: int) -> None: ...

input_encoding = property(get_input_encoding, set_input_encoding)

Default Value

0

Remarks

Use this property to specify the encoding to apply to the input data.

cetDefault0The default encoding type in current circumstances. This depends on the operation and the type of the key being used.

cetBinary1Raw binary encoding (no encoding)

cetBase642Base64 encoding (armouring)

cetCompact3JSON compact encoding

cetJSON4JSON standard encoding

input_is_hash Property

Indicates whether the input data contains the hash or the actual data.

Syntax

def get_input_is_hash() -> bool: ...
def set_input_is_hash(value: bool) -> None: ...

input_is_hash = property(get_input_is_hash, set_input_is_hash)

Default Value

FALSE

Remarks

Set this property to true to tell the class that the data you are passing to it is the hash of the data, rather than the actual (unhashed) data. If this property is set to false, class will hash the provided data internally if it is assumed by the algorithm.

json_key_header_params Property

Contains key header parameters.

Syntax

def get_json_key_header_params() -> str: ...
def set_json_key_header_params(value: str) -> None: ...

json_key_header_params = property(get_json_key_header_params, set_json_key_header_params)

Default Value

"kid"

Remarks

Contains key header parameters.

json_protected_header Property

Provides access to the header being protected.

Syntax

def get_json_protected_header() -> str: ...
def set_json_protected_header(value: str) -> None: ...

json_protected_header = property(get_json_protected_header, set_json_protected_header)

Default Value

""

Remarks

Provides access to the header being protected.

json_unprotected_header Property

Provides access to the unprotected part of the header.

Syntax

def get_json_unprotected_header() -> str: ...
def set_json_unprotected_header(value: str) -> None: ...

json_unprotected_header = property(get_json_unprotected_header, set_json_unprotected_header)

Default Value

""

Remarks

Provides access to the unprotected part of the header.

json_unprotected_header_params Property

Contains unprotected header parameters.

Syntax

def get_json_unprotected_header_params() -> str: ...
def set_json_unprotected_header_params(value: str) -> None: ...

json_unprotected_header_params = property(get_json_unprotected_header_params, set_json_unprotected_header_params)

Default Value

""

Remarks

Contains unprotected header parameters.

key_handle Property

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

Syntax

def get_key_handle() -> int: ...
def set_key_handle(value: int) -> None: ...

key_handle = property(get_key_handle, set_key_handle)

Default Value

0

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());

key_key Property

The byte array representation of the key.

Syntax

def get_key_key() -> bytes: ...

key_key = property(get_key_key, None)

Remarks

The byte array representation of the key. This may not be available for non-key_exportable keys.

This property is read-only.

output_encoding Property

The encoding type to apply to the output data.

Syntax

def get_output_encoding() -> int: ...
def set_output_encoding(value: int) -> None: ...

output_encoding = property(get_output_encoding, set_output_encoding)

Default Value

0

Remarks

Use this property to specify the encoding type to apply to the protected data.

cetDefault0The default encoding type in current circumstances. This depends on the operation and the type of the key being used.

cetBinary1Raw binary encoding (no encoding)

cetBase642Base64 encoding (armouring)

cetCompact3JSON compact encoding

cetJSON4JSON standard encoding

scheme Property

The algorithm scheme to use.

Syntax

def get_scheme() -> str: ...
def set_scheme(value: str) -> None: ...

scheme = property(get_scheme, set_scheme)

Default Value

""

Remarks

Certain asymmetric algorithms are often accompanied with a specific algorithm scheme. Two typical examples are RSA's own OAEP and PSS schemes. Use this property to tune up the scheme to use. Leave it empty to proceed with the standard scheme (such as PKCS#1-v1.5 for RSA). Supported schemes:

RSA: PKCS#1, PSS, OAEP, SSL3

ECDSA: ed25519, ed448, ed25519ph, ed448ph

scheme_params Property

The algorithm scheme parameters to employ.

Syntax

def get_scheme_params() -> str: ...
def set_scheme_params(value: str) -> None: ...

scheme_params = property(get_scheme_params, set_scheme_params)

Default Value

""

Remarks

Use this property to specify the parameters of the algorithm scheme if needed.

signature_validation_result Property

The signature validation result.

Syntax

def get_signature_validation_result() -> int: ...

signature_validation_result = property(get_signature_validation_result, None)

Default Value

0

Remarks

Use this property to check the result of the most recent signature validation.

svtValid0The signature is valid

svtUnknown1Signature validity is unknown

svtCorrupted2The signature is corrupted

svtSignerNotFound3Failed to acquire the signing certificate. The signature cannot be validated.

svtFailure4General failure

svtReferenceCorrupted5Reference corrupted (XML-based signatures only)

This property is read-only.

config Method

Sets or retrieves a configuration setting.

Syntax

def config(configuration_string: str) -> str: ...

Remarks

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

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, 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.

decrypt Method

Decrypts a buffer.

Syntax

def decrypt(buffer: bytes) -> bytes: ...

Remarks

Use this method to decrypt a byte array and get the encrypted message in another byte array.

Specify the decryption key in key property before calling this method.

decrypt_file Method

Decrypts a file.

Syntax

def decrypt_file(source_file: str, dest_file: str) -> None: ...

Remarks

Use this method to decrypt an encrypted file and save the decrypted data to another file.

Specify the decryption key in key property before calling this method.

do_action Method

Performs an additional action.

Syntax

def do_action(action_id: str, action_params: str) -> str: ...

Remarks

do_action is a generic method available in every class. 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;....

encrypt Method

Encrypts a buffer.

Syntax

def encrypt(buffer: bytes) -> bytes: ...

Remarks

Use this method to encrypt a byte array and get the protected message in another byte array.

Specify the encryption key in the key property before commencing encryption.

encrypt_file Method

Encrypts a file.

Syntax

def encrypt_file(source_file: str, dest_file: str) -> None: ...

Remarks

Use this method to encrypt a file and save the protected message to another file.

Specify the encryption key in key property before commencing encryption.

reset Method

Resets the class settings.

Syntax

def reset() -> None: ...

Remarks

reset is a generic method available in every class.

sign Method

Signs a buffer.

Syntax

def sign(buffer: bytes, detached: bool) -> bytes: ...

Remarks

Use this method to sign a byte array and get the protected message in another byte array. Set the Detached parameter to false to create an enveloped/enveloping, rather than detached signature. Please note that certain signature algorithms/kinds only support detached signing.

Specify the signing key in key property before commencing the signing.

Please note that the key assigned must have a private key part.

sign_file Method

Signs a file.

Syntax

def sign_file(source_file: str, dest_file: str, detached: bool) -> None: ...

Remarks

Use this method to sign a file and save the protected message to another file.

Specify the signing key in key property before the signing. Please make sure the assigned key has a private key associated with it.

Set Detached parameter to false to create an enveloped/enveloping signature. This may not be supported by certain algorithms or encryption modes.

verify Method

Verifies an enveloped or enveloping signature contained in a buffer.

Syntax

def verify(buffer: bytes) -> bytes: ...

Remarks

Use this method to verify an enveloped or enveloping signature contained in a byte array. The method verifies the signature and extracts the original signed content into another byte array.

The validation result is stored in signature_validation_result property.

Use verify_detached to verify detached signatures.

Specify the verification key in the key property before commencing verification.

verify_detached Method

Verifies a detached signature.

Syntax

def verify_detached(signed_data: bytes, signature: bytes) -> None: ...

Remarks

Use this method to verify a detached signature. Pass the original message via the SignedData parameter, and the signature via the Signature parameter.

The validation result is stored in signature_validation_result property.

Provide the verification key in key property before commencing verification.

verify_detached_file Method

Verifies a detached signature.

Syntax

def verify_detached_file(signed_data_file: str, signature_file: str) -> None: ...

Remarks

Use this method to verify a detached signature. Pass the original data via the SignedDataFile parameter, and the signature via the SignatureFile parameter.

The validation result is stored in signature_validation_result property.

Provide the verification key in key property.

verify_file Method

Verifies an enveloped or enveloping signature contained in a file.

Syntax

def verify_file(source_file: str, dest_file: str) -> None: ...

Remarks

Use this method to verify an enveloped or enveloping signature and extract the original signed message to another file.

The validation result is stored in signature_validation_result property.

Specify the public verification key in key property before commencing the validation.

on_error Event

Reports error information during a crypto operation.

Syntax

class PublicKeyCryptoErrorEventParams(object):
  @property
  def error_code() -> int: ...

  @property
  def description() -> str: ...

# In class PublicKeyCrypto:
@property
def on_error() -> Callable[[PublicKeyCryptoErrorEventParams], None]: ...
@on_error.setter
def on_error(event_hook: Callable[[PublicKeyCryptoErrorEventParams], None]) -> None: ...

Remarks

Class fires this event if an error is encountered during a cryptographic operation.

ErrorCode contains an error code and Description contains a textual description of the error that happened.

on_notification Event

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

Syntax

class PublicKeyCryptoNotificationEventParams(object):
  @property
  def event_id() -> str: ...

  @property
  def event_param() -> str: ...

# In class PublicKeyCrypto:
@property
def on_notification() -> Callable[[PublicKeyCryptoNotificationEventParams], None]: ...
@on_notification.setter
def on_notification(event_hook: Callable[[PublicKeyCryptoNotificationEventParams], None]) -> None: ...

Remarks

The class fires this event to let the application know about some event, occurrence, or milestone in the class. 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 class, the exact action it is performing, or the document being processed, one or both may be omitted.

PublicKeyCrypto Config Settings

The class 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 class, access to these internal properties is provided through the config method.

PublicKeyCrypto Config Settings

TempPath:   Path for storing temporary files.

This setting specifies an absolute path to the location on disk where temporary files are stored.

UseAlgorithmPrefix:   Enables or disables the PKCS#1 ASN.1 algorithm prefix.

Use this property to enable or disable the use of ASN.1 hash algorithm prefix. This may be useful if you work with an external signing service that adds this prefix itself.

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 class.

Supported values are:

offNo caching (default)
localLocal caching
globalGlobal caching

Cookies:   Gets or sets local cookies for the class.

Use this property to get cookies from the internal cookie storage of the class 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.

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 classes that have its CookieCaching property set to "global".

HardwareCryptoUsePolicy:   The hardware crypto usage policy.

This global setting controls the hardware cryptography usage policy: auto, enable, or disable.

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 classes.

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:

fileFile
consoleConsole
systemlogSystem Log (supported for Android only)
debuggerDebugger (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:

timeCurrent time
levelLevel
packagePackage name
moduleModule name
classClass name
methodMethod name
threadidThread Id
contenttypeContent type
contentContent
allAll 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-packageExclude a package specified in the value
exclude-moduleExclude a module specified in the value
exclude-classExclude a class specified in the value
exclude-methodExclude a method specified in the value
include-packageInclude a package specified in the value
include-moduleInclude a module specified in the value
include-classInclude a class specified in the value
include-methodInclude 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:

noneNo flush (caching only)
immediateImmediate flush (real-time logging)
maxcountFlush 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:

noneNone (by default)
fatalSevere errors that cause premature termination.
errorOther runtime errors or unexpected conditions.
warningUse of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong".
infoInteresting runtime events (startup/shutdown).
debugDetailed information on flow of through the system.
traceMore 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:

noneNo rotation
deleteolderDelete older entries from the cache upon reaching LogMaxEventCount
keepolderKeep 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.

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 class. Works only if UseOwnDNSResolver is set to true.

Supported values are:

noneNo static DNS rules (default)
localLocal static DNS rules
globalGlobal 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 class) 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 devided 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 class is set to "local", the property returns/restores the rules from/to the internal storage of the class. If StaticDNS of the class 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 chached 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 classes.

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).

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).

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.

PublicKeyCrypto Errors

PublicKeyCrypto Errors

1048577   Invalid parameter (SB_ERROR_INVALID_PARAMETER)
1048578   Invalid configuration (SB_ERROR_INVALID_SETUP)
1048579   Invalid state (SB_ERROR_INVALID_STATE)
1048580   Invalid value (SB_ERROR_INVALID_VALUE)
1048581   Private key not found (SB_ERROR_NO_PRIVATE_KEY)
1048582   Cancelled by the user (SB_ERROR_CANCELLED_BY_USER)
1048583   The file was not found (SB_ERROR_NO_SUCH_FILE)
1048584   Unsupported feature or operation (SB_ERROR_UNSUPPORTED_FEATURE)
1048585   General error (SB_ERROR_GENERAL_ERROR)