Docs

SecureBlackbox 2022 Delphi Edition

Version 22.0 [Build 8174]

HashFunction Component

Properties   Methods   Events   Configuration Settings   Errors  

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

Syntax

TsbxHashFunction

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.

AlgorithmThe hash algorithm to use when hashing data.
FIPSModeReserved.
JsonSettingsProvides a container for JSON settings.
KeyThe key to use during the hashing.
OutputEncodingThe 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.

ConfigSets or retrieves a configuration setting.
DoActionPerforms an additional action.
FinishCompletes the hash and returns the resulting message digest.
HashCalculates a message digest over a byte array.
HashFileCalculates a message digest over data contained in a file.
HashStreamCalculates a message digest over data contained in a stream.
ResetResets the hash function context.
UpdateFeeds a chunk of data to the hash function.
UpdateFileFeeds the contents of a file to the hash function.
UpdateStreamFeeds 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.

ErrorInforms about errors during cryptographic operations.
NotificationThis event notifies the application about an underlying control flow event.

Configuration Settings


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

TempPathPath for storing temporary files.
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 component (supported for HTTPClient, RESTClient and SOAPClient only).
DefDeriveKeyIterationsSpecifies the default key derivation algorithm iteration count.
EnableClientSideSSLFFDHEEnables or disables finite field DHE key exchange support in TLS clients.
GlobalCookiesGets or sets global cookies for all the HTTP transports.
HttpUserAgentSpecifies the user agent name to be used by all HTTP clients.
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.
TagAllows to store any custom data.
UseSharedSystemStoragesSpecifies whether the validation engine should use a global per-process copy of the system certificate stores.
UseSystemOAEPAndPSSEnforces or disables the use of system-driven RSA OAEP and PSS computations.
UseSystemRandomEnables or disables the use of the OS PRNG.

Algorithm Property (HashFunction Component)

The hash algorithm to use when hashing data.

Syntax

property Algorithm: String read get_Algorithm write set_Algorithm;

Default Value

'SHA256'

Remarks

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

FIPSMode Property (HashFunction Component)

Reserved.

Syntax

property FIPSMode: Boolean read get_FIPSMode write set_FIPSMode;

Default Value

false

Remarks

This property is reserved for future use.

JsonSettings Property (HashFunction Component)

Provides a container for JSON settings.

Syntax

property JsonSettings: TsbxJWSettings read get_JsonSettings;

Remarks

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

This property is read-only.

Key Property (HashFunction Component)

The key to use during the hashing.

Syntax

property Key: TsbxCryptoKey read get_Key write set_Key;

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.

OutputEncoding Property (HashFunction Component)

The encoding to use for the output data.

Syntax

property OutputEncoding: TsbxCryptoEncodingTypes read get_OutputEncoding write set_OutputEncoding;
TsbxCryptoEncodingTypes = ( cetDefault, cetBinary, cetBase64, cetCompact, cetJSON );

Default Value

cetDefault

Remarks

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

Config Method (HashFunction Component)

Sets or retrieves a configuration setting.

Syntax

function Config(ConfigurationString: String): 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

function DoAction(ActionID: String; ActionParams: String): 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 of the action is provided in ActionID parameter. ActionParams contains a list of parameters for the action in the form of PARAM1=VALUE1;PARAM2=VALUE2;....

Finish Method (HashFunction Component)

Completes the hash and returns the resulting message digest.

Syntax

function Finish(): TBytes;

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

function Hash(Buffer: TBytes): TBytes;

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

function HashFile(SourceFile: String): TBytes;

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

function HashStream(): TBytes;

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

procedure 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

procedure Update(Buffer: TBytes);

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

procedure UpdateFile(SourceFile: 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

procedure 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.

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.

Error Event (HashFunction Component)

Informs about errors during cryptographic operations.

Syntax

type TErrorEvent = procedure (
  Sender: TObject;
  ErrorCode: Integer;
  const Description: String
) of Object;

property OnError: TErrorEvent read FOnError write FOnError;

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

type TNotificationEvent = procedure (
  Sender: TObject;
  const EventID: String;
  const EventParam: String
) of Object;

property OnNotification: TNotificationEvent read FOnNotification write FOnNotification;

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 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.

Fields

Algorithm
String

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_RC4RC4
SB_SYMMETRIC_ALGORITHM_DESDES
SB_SYMMETRIC_ALGORITHM_3DES3DES
SB_SYMMETRIC_ALGORITHM_RC2RC2
SB_SYMMETRIC_ALGORITHM_AES128AES128
SB_SYMMETRIC_ALGORITHM_AES192AES192
SB_SYMMETRIC_ALGORITHM_AES256AES256
SB_SYMMETRIC_ALGORITHM_IDENTITYIdentity
SB_SYMMETRIC_ALGORITHM_BLOWFISHBlowfish
SB_SYMMETRIC_ALGORITHM_CAST128CAST128
SB_SYMMETRIC_ALGORITHM_IDEAIDEA
SB_SYMMETRIC_ALGORITHM_TWOFISHTwofish
SB_SYMMETRIC_ALGORITHM_TWOFISH128Twofish128
SB_SYMMETRIC_ALGORITHM_TWOFISH192Twofish192
SB_SYMMETRIC_ALGORITHM_TWOFISH256Twofish256
SB_SYMMETRIC_ALGORITHM_CAMELLIACamellia
SB_SYMMETRIC_ALGORITHM_CAMELLIA128Camellia128
SB_SYMMETRIC_ALGORITHM_CAMELLIA192Camellia192
SB_SYMMETRIC_ALGORITHM_CAMELLIA256Camellia256
SB_SYMMETRIC_ALGORITHM_SERPENTSerpent
SB_SYMMETRIC_ALGORITHM_SERPENT128Serpent128
SB_SYMMETRIC_ALGORITHM_SERPENT192Serpent192
SB_SYMMETRIC_ALGORITHM_SERPENT256Serpent256
SB_SYMMETRIC_ALGORITHM_SEEDSEED
SB_SYMMETRIC_ALGORITHM_RABBITRabbit
SB_SYMMETRIC_ALGORITHM_SYMMETRICGeneric
SB_SYMMETRIC_ALGORITHM_GOST_28147_1989GOST-28147-1989
SB_SYMMETRIC_ALGORITHM_CHACHA20ChaCha20

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

Bits
Integer

The length of the key in bits.

Curve
String

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

Exportable
Boolean

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

Handle
Int64

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());

ID
TBytes

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
TBytes

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
TBytes

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

Nonce
TBytes

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

Private
Boolean

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

Public
Boolean

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

Subject
TBytes

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

Symmetric
Boolean

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

Valid
Boolean

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

>

constructor Create();

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.

Fields

KeyHeaderParams
String

Contains key header parameters.

ProtectedHeader
String

Provides access to the header being protected.

UnprotectedHeader
String

Provides access to the unprotected part of the header.

UnprotectedHeaderParams
String

Contains unprotected header parameters.

Constructors

>

constructor Create();

Creates an json settings object.

Configuration 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 Configuration Settings

TempPath:   Path for storing temporary files.

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

Base Configuration Settings

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:

offNo caching (default)
localLocal caching (supported for HTTPClient, RESTClient and SOAPClient only)
globalGlobal caching

Cookies:   Gets or sets local cookies for the component (supported for HTTPClient, RESTClient and SOAPClient only).

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.

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".

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.

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.

Tag:   Allows to store any custom data.

Use this config property to store any custom data.

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.

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.

Trappable Errors (HashFunction Component)

HashFunction Errors

1048577   Invalid parameter value (SB_ERROR_INVALID_PARAMETER)
1048578   Component is configured incorrectly (SB_ERROR_INVALID_SETUP)
1048579   Operation cannot be executed in the current state (SB_ERROR_INVALID_STATE)
1048580   Attempt to set an invalid value to a property (SB_ERROR_INVALID_VALUE)
1048581   Certificate does not have its private key loaded (SB_ERROR_NO_PRIVATE_KEY)
1048581   Cancelled by the user (SB_ERROR_CANCELLED_BY_USER)

Copyright (c) 2022 /n software inc. - All rights reserved.
SecureBlackbox 2022 Delphi Edition - Version 22.0 [Build 8174]