HashFunction Component

Properties Methods Events Config Settings Errors

The HashFunction component implements a wide variety of algorithms for message hashing.

Syntax

nsoftware.SecureBlackbox.HashFunction

Remarks

HashFunction allows you to hash messages using a variety of industry standard hashing algorithms. Algorithms of both Hash and HMAC type are supported.

You can feed your data to HashFunction in one go, or in chunks. Use Hash method to initialize the hash function, pass the buffer, and calculate the hash in one line of code. Alternatively, use Reset, Update, and Finish in sequence to perform each of those steps individually. You can call Update (and its UpdateFile and UpdateStream variants) repeatedly between Reset and Finish, effectively passing the data in a number of portions: // Feeding the data in one go: Hashfunction hf = new Hashfunction(); hf.Algorithm = "SHA256"; byte[] hash = hf.Hash(buffer); // Feeding data chunk by chunk: Hashfunction hf = new Hashfunction(); hf.Algorithm = "SHA256"; hf.Reset(); hf.Update(buffer1); hf.Update(buffer2); hf.Update(buffer3); byte[] hash = hf.Finish();

To use keyed HMAC, you need to provide the secret key first. Use CryptoKeyManager to create and initialize the key object: Cryptokeymanager km = new Cryptokeymanager(); km.ImportBytes(hmacKey, Constants.kffDER, "SHA256", "", "", Constants.ktSecret); Hashfunction hf = new Hashfunction(); hf.Algorithm = "SHA256"; hf.Key = km.Key; byte[] hash = hf.Hash(buffer);

Use OutputEncoding to set the desired encoding method.

Property List

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


Algorithm	The hash algorithm to use when hashing data.
FIPSMode	Reserved.
InputStream	A stream containing the input data.
JsonSettings	Provides a container for JSON settings.
Key	The key to use during the hashing.
OutputEncoding	The encoding to use for the output data.

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.
DoAction	Performs an additional action.
Finish	Completes the hash and returns the resulting message digest.
Hash	Calculates a message digest over a byte array.
HashFile	Calculates a message digest over data contained in a file.
HashStream	Calculates a message digest over data contained in a stream.
Reset	Resets the hash function context.
Update	Feeds a chunk of data to the hash function.
UpdateFile	Feeds the contents of a file to the hash function.
UpdateStream	Feeds the contents of a stream to the hash function.

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.


Error	Informs about errors during cryptographic operations.
Notification	This event notifies the application about an underlying control flow event.

Config Settings

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


TempPath	Path for storing temporary files.
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 component.
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.
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 components 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 components 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.

Algorithm Property (HashFunction Component)

The hash algorithm to use when hashing data.

public string Algorithm { get; set; }

Public Property Algorithm As String

Default Value

"SHA256"

Remarks


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`

FIPSMode Property (HashFunction Component)

Reserved.

Syntax

C#
VB.NET

public bool FIPSMode { get; set; }

Public Property FIPSMode As Boolean

Default Value

False

Remarks

This property is reserved for future use.

InputStream Property (HashFunction Component)

A stream containing the input data.

Syntax

C#
VB.NET

public System.IO.Stream InputStream { get; set; }

Public Property InputStream As System.IO.Stream

Default Value

null

Remarks

Use this property to specify the data to be used by HashStream and UpdateStream methods.

This property is not available at design time.

JsonSettings Property (HashFunction Component)

Provides a container for JSON settings.

Syntax

C#
VB.NET

public JWSettings JsonSettings { get; }

Public ReadOnly Property JsonSettings As JWSettings

Remarks

Use this property when using JSON Web Signatures to tune up the JSON parameters.

This property is read-only.

Please refer to the JWSettings type for a complete list of fields.

Key Property (HashFunction Component)

The key to use during the hashing.

Syntax

C#
VB.NET

public CryptoKey Key { get; set; }

Public Property Key As CryptoKey

Remarks

Assign a properly configured cryptographic key object to this property to use it during the hashing operation. This would normally be a HMAC key.

This property is not available at design time.

Please refer to the CryptoKey type for a complete list of fields.

OutputEncoding Property (HashFunction Component)

The encoding to use for the output data.

Syntax

C#
VB.NET

public HashFunctionOutputEncodings OutputEncoding { get; set; }

enum HashFunctionOutputEncodings {
  cetDefault,
  cetBinary,
  cetBase64,
  cetCompact,
  cetJSON
}

Public Property OutputEncoding As HashfunctionOutputEncodings

Enum HashFunctionOutputEncodings
  cetDefault
  cetBinary
  cetBase64
  cetCompact
  cetJSON
End Enum

Default Value

Remarks

Use this property to configure the type of encoding to be used for the output data.


cetDefault	`0`	The default encoding type in current circumstances. This depends on the operation and the type of the key being used.
cetBinary	`1`	Raw binary encoding (no encoding)
cetBase64	`2`	Base64 encoding (armouring)
cetCompact	`3`	JSON compact encoding
cetJSON	`4`	JSON standard encoding

Config Method (HashFunction Component)

Sets or retrieves a configuration setting.

Syntax

C#
VB.NET

public string Config(string configurationString);

Public Function Config(ByVal ConfigurationString As String) As String

Remarks

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

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

DoAction Method (HashFunction Component)

Performs an additional action.

Syntax

C#
VB.NET

public string DoAction(string actionID, string actionParams);

Public Function DoAction(ByVal ActionID As String, ByVal ActionParams As String) As String

Remarks

DoAction is a generic method available in every component. 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.

Finish Method (HashFunction Component)

Completes the hash and returns the resulting message digest.

Syntax

C#
VB.NET

public byte[] Finish();

Public Function Finish() As Byte()

Remarks

This method finalizes the hashing operation and returns the message digest of the input data. Use it in conjuction with Reset and Update methods to process data in chunks.

Hash Method (HashFunction Component)

Calculates a message digest over a byte array.

Syntax

C#
VB.NET

public byte[] Hash(byte[] buffer);

Public Function Hash(ByVal Buffer As Byte()) As Byte()

Remarks

This method calculates and returns a message digest over the content of Buffer. This is a quick way to calculate a hash over a byte array in one go.

HashFile Method (HashFunction Component)

Calculates a message digest over data contained in a file.

Syntax

C#
VB.NET

public byte[] HashFile(string sourceFile);

Public Function HashFile(ByVal SourceFile As String) As Byte()

Remarks

This method calculates and returns a message digest over the data contained in file SourceFile. This is a quick way to calculate a hash over a file content in one go.

HashStream Method (HashFunction Component)

Calculates a message digest over data contained in a stream.

Syntax

C#
VB.NET

public byte[] HashStream();

Public Function HashStream() As Byte()

Remarks

This method calculates a message digest over the data contained in InputStream. This is a quick way of calculating a message data over a stream content in one go.

Reset Method (HashFunction Component)

Resets the hash function context.

Syntax

C#
VB.NET

public void Reset();

Public Sub Reset()

Remarks

Reset resets the context of the hash function, discarding any data passed to it previously.

Use this method to restart the hash calculation process from scratch.

This method does not affect one-go methods like Hash or HashStream; they reset the hash function context automatically.

Update Method (HashFunction Component)

Feeds a chunk of data to the hash function.

Syntax

C#
VB.NET

public void Update(byte[] buffer);

Public Sub Update(ByVal Buffer As Byte())

Remarks

This method feeds Buffer to the hash function. Call this method repeatedly to pass your data to the hash function chunk by chunk.

Remember to initialize the hash function with an Reset call before starting to feed data with this method. After the whole volume of data has been sent, complete the calculation and obtain the resulting message digest with a Finish call.

UpdateFile Method (HashFunction Component)

Feeds the contents of a file to the hash function.

Syntax

C#
VB.NET

public void UpdateFile(string sourceFile);

Public Sub UpdateFile(ByVal SourceFile As String)

Remarks

Call this method to pass the contents of a file to the hash function. You can call this function repeatedly and mix it with Update to feed the hash function with many separate chunks of data.

Remember to initialize the hash function with an Reset call before starting hashing the data. Once all the data chunks have been submitted, finalize the hash function and obtain the resulting message digest by calling Finish.

UpdateStream Method (HashFunction Component)

Feeds the contents of a stream to the hash function.

Syntax

C#
VB.NET

public void UpdateStream();

Public Sub UpdateStream()

Remarks

Call this method to pass the contents of a stream to the hash function. You can call this function repeatedly and mix it with Update to feed the hash function with many separate chunks of data.

Error Event (HashFunction Component)

Informs about errors during cryptographic operations.

Syntax

C#
VB.NET

public event OnErrorHandler OnError;

public delegate void OnErrorHandler(object sender, HashFunctionErrorEventArgs e);

public class HashFunctionErrorEventArgs : EventArgs {
  public int ErrorCode { get; }
  public string Description { get; }
}

Public Event OnError As OnErrorHandler

Public Delegate Sub OnErrorHandler(sender As Object, e As HashFunctionErrorEventArgs)

Public Class HashFunctionErrorEventArgs Inherits EventArgs
  Public ReadOnly Property ErrorCode As Integer
  Public ReadOnly Property Description As String
End Class

Remarks

Component fires this event if an error happens during a cryptographic operation.

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

Notification Event (HashFunction Component)

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

Syntax

C#
VB.NET

public event OnNotificationHandler OnNotification;

public delegate void OnNotificationHandler(object sender, HashFunctionNotificationEventArgs e);

public class HashFunctionNotificationEventArgs : EventArgs {
  public string EventID { get; }
  public string EventParam { get; }
}

Public Event OnNotification As OnNotificationHandler

Public Delegate Sub OnNotificationHandler(sender As Object, e As HashFunctionNotificationEventArgs)

Public Class HashFunctionNotificationEventArgs Inherits EventArgs
  Public ReadOnly Property EventID As String
  Public ReadOnly Property EventParam As String
End Class

Remarks

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

CryptoKey Type

This container represents a cryptographic key.

Remarks

This type is a universal placeholder for cryptographic keys.

The following fields are available:

Fields

Algorithm
string
Default: ""

The algorithm of the cryptographic key. A cryptokey object may hold either symmetric, MAC, or public key. Public key algorithms: RSA, ECDSA, Elgamal, DH.


SB_SYMMETRIC_ALGORITHM_RC4	`RC4`
SB_SYMMETRIC_ALGORITHM_DES	`DES`
SB_SYMMETRIC_ALGORITHM_3DES	`3DES`
SB_SYMMETRIC_ALGORITHM_RC2	`RC2`
SB_SYMMETRIC_ALGORITHM_AES128	`AES128`
SB_SYMMETRIC_ALGORITHM_AES192	`AES192`
SB_SYMMETRIC_ALGORITHM_AES256	`AES256`
SB_SYMMETRIC_ALGORITHM_IDENTITY	`Identity`
SB_SYMMETRIC_ALGORITHM_BLOWFISH	`Blowfish`
SB_SYMMETRIC_ALGORITHM_CAST128	`CAST128`
SB_SYMMETRIC_ALGORITHM_IDEA	`IDEA`
SB_SYMMETRIC_ALGORITHM_TWOFISH	`Twofish`
SB_SYMMETRIC_ALGORITHM_TWOFISH128	`Twofish128`
SB_SYMMETRIC_ALGORITHM_TWOFISH192	`Twofish192`
SB_SYMMETRIC_ALGORITHM_TWOFISH256	`Twofish256`
SB_SYMMETRIC_ALGORITHM_CAMELLIA	`Camellia`
SB_SYMMETRIC_ALGORITHM_CAMELLIA128	`Camellia128`
SB_SYMMETRIC_ALGORITHM_CAMELLIA192	`Camellia192`
SB_SYMMETRIC_ALGORITHM_CAMELLIA256	`Camellia256`
SB_SYMMETRIC_ALGORITHM_SERPENT	`Serpent`
SB_SYMMETRIC_ALGORITHM_SERPENT128	`Serpent128`
SB_SYMMETRIC_ALGORITHM_SERPENT192	`Serpent192`
SB_SYMMETRIC_ALGORITHM_SERPENT256	`Serpent256`
SB_SYMMETRIC_ALGORITHM_SEED	`SEED`
SB_SYMMETRIC_ALGORITHM_RABBIT	`Rabbit`
SB_SYMMETRIC_ALGORITHM_SYMMETRIC	`Generic`
SB_SYMMETRIC_ALGORITHM_GOST_28147_1989	`GOST-28147-1989`
SB_SYMMETRIC_ALGORITHM_CHACHA20	`ChaCha20`


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`

Bits
int (read-only)
Default: 0

The length of the key in bits.

Curve
string
Default: ""

This property specifies the name of the curve the EC key is built on.

Exportable
bool (read-only)
Default: False

Returns True if the key is exportable (can be serialized into an array of bytes), and False otherwise.

Fingerprint
string (read-only)
Default: ""

Contains the fingerprint (a hash imprint) of this key.

ID
byte[]
Default: ""

Provides access to a storage-specific key identifier. Key identifiers are used by cryptographic providers to refer to a particular key and/or distinguish between different keys. They are typically unique within a storage, but there is no guarantee that a particular cryptoprovider will conform to that (or will assign any key IDs at all).

IV
byte[]
Default: ""

The initialization vector (IV) of a symmetric key. This is normally a public part of a symmetric key, the idea of which is to introduce randomness to the encrypted data and/or serve as a first block in chaining ciphers.

Key
byte[] (read-only)
Default: ""

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

Nonce
byte[]
Default: ""

A nonce value associated with a key. It is similar to IV, but its only purpose is to introduce randomness.

Private
bool (read-only)
Default: False

Returns True if the object hosts a private key, and False otherwise.

Public
bool (read-only)
Default: False

Returns True if the object hosts a public key, and False otherwise.

Subject
byte[]
Default: ""

Returns the key subject. This is a cryptoprovider-dependent value, which normally aims to provide some user-friendly insight into the key owner.

Symmetric
bool (read-only)
Default: False

Returns True if the object contains a symmetric key, and False otherwise.

Valid
bool (read-only)
Default: False

Returns True if this key is valid. The term Valid highly depends on the kind of the key being stored. A symmetric key is considered valid if its length fits the algorithm being set. The validity of an RSA key also ensures that the RSA key elements (primes, exponents, and modulus) are consistent.

Constructors

C#
VB.NET

public CryptoKey();

Public CryptoKey()

Creates an empty crypto key object.

JWSettings Type

This container represents JSON web security settings.

Remarks

This type contains properties specific to JSON Web Security.

The following fields are available:

KeyHeaderParams

ProtectedHeader

UnprotectedHeader

UnprotectedHeaderParams

Fields

KeyHeaderParams
string
Default: "kid"

Contains key header parameters.

ProtectedHeader
string
Default: ""

Provides access to the header being protected.

UnprotectedHeader
string
Default: ""

Provides access to the unprotected part of the header.

UnprotectedHeaderParams
string
Default: ""

Contains unprotected header parameters.

Constructors

C#
VB.NET

public JWSettings();

Public JWSettings()

Creates an json settings object.

Config Settings (HashFunction Component)

The component 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 component, access to these internal properties is provided through the Config method.

HashFunction Config Settings

TempPath: Path for storing temporary files.

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

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 component.

Supported values are:


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

Cookies: Gets or sets local cookies for the component.

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

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 component. 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 component) 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 component is set to "local", the property returns/restores the rules from/to the internal storage of the component. If StaticDNS of the component 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 components.

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 (HashFunction Component)

HashFunction 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`)