CryptoKeyStorage Class

Properties   Methods   Events   Config Settings   Errors  

The CryptoKeyStorage class offers key storage functionality for a variety of key store types.

Syntax

CryptoKeyStorage

Remarks

CryptoKeyStorage provides access to many types of key stores, such as files or PKCS#11.

Property List


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

FIPSModeReserved.
KeysAn accessor to the collection of keys contained in the storage.
OpenedIndicates whether the storage is in the open state.
PinnedKeyA pinned key.
SelectedKeysA collection of selected keys.
StorageIDA unique identifier of this storage.
StorageLocationSpecifies the location of the currently opened storage.

Method List


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

AddPinnedAdds the pinned key to the storage.
ClearRemoves all existing keys from the storage.
CloseCloses the logical storage.
ConfigThis method sets or retrieves a configuration setting.
CreateNewCreates a new storage.
DoActionPerforms an additional action.
GetStoragePropertyReturns the value of a custom key storage property.
ImportBytesImports a key to the storage.
ImportFromFileImports a key to the storage.
ImportFromStreamImports a key to the storage.
ListStoresReturns a list of individual stores available within the storage.
LoginSigns in to a session or elevates the session rights.
LogoutSigns out of an opened session.
OpenOpens existing storage or creates one in memory.
RefreshRefreshes all storage keychains.
RemoveRemoves a key from the storage.
ResetResets the class settings.
SelectAllows the selection of keys from the store.
SetStoragePropertySets the value of a custom key storage property.

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.

ErrorFires when an errors happens during a key storage operation.
NotificationThis event notifies the application about an underlying control flow event.
PasswordNeededThis event is fired when a decryption password is needed.

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.
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.
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.
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.
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.
UseSystemOAEPAndPSSEnforces or disables the use of system-driven RSA OAEP and PSS computations.
UseSystemRandomEnables or disables the use of the OS PRNG.

FIPSMode Property (CryptoKeyStorage Class)

Reserved.

Syntax

ANSI (Cross Platform)
int GetFIPSMode();
int SetFIPSMode(int bFIPSMode); Unicode (Windows) BOOL GetFIPSMode();
INT SetFIPSMode(BOOL bFIPSMode);
int secureblackbox_cryptokeystorage_getfipsmode(void* lpObj);
int secureblackbox_cryptokeystorage_setfipsmode(void* lpObj, int bFIPSMode);
bool GetFIPSMode();
int SetFIPSMode(bool bFIPSMode);

Default Value

FALSE

Remarks

This property is reserved for future use.

Data Type

Boolean

Keys Property (CryptoKeyStorage Class)

An accessor to the collection of keys contained in the storage.

Syntax

int secureblackbox_cryptokeystorage_getkeycount(void* lpObj);
char* secureblackbox_cryptokeystorage_getkeyalgorithm(void* lpObj, int keyindex);
int secureblackbox_cryptokeystorage_getkeybits(void* lpObj, int keyindex);
char* secureblackbox_cryptokeystorage_getkeycurve(void* lpObj, int keyindex);
int secureblackbox_cryptokeystorage_getkeyexportable(void* lpObj, int keyindex);
char* secureblackbox_cryptokeystorage_getkeyfingerprint(void* lpObj, int keyindex);
int64 secureblackbox_cryptokeystorage_getkeyhandle(void* lpObj, int keyindex);
int secureblackbox_cryptokeystorage_getkeyid(void* lpObj, int keyindex, char** lpKeyID, int* lenKeyID);
int secureblackbox_cryptokeystorage_getkeyiv(void* lpObj, int keyindex, char** lpKeyIV, int* lenKeyIV);
int secureblackbox_cryptokeystorage_getkeykey(void* lpObj, int keyindex, char** lpKeyKey, int* lenKeyKey);
int secureblackbox_cryptokeystorage_getkeynonce(void* lpObj, int keyindex, char** lpKeyNonce, int* lenKeyNonce);
int secureblackbox_cryptokeystorage_getkeyprivate(void* lpObj, int keyindex);
int secureblackbox_cryptokeystorage_getkeypublic(void* lpObj, int keyindex);
int secureblackbox_cryptokeystorage_getkeysubject(void* lpObj, int keyindex, char** lpKeySubject, int* lenKeySubject);
int secureblackbox_cryptokeystorage_getkeysymmetric(void* lpObj, int keyindex);
int secureblackbox_cryptokeystorage_getkeyvalid(void* lpObj, int keyindex);
int GetKeyCount();

QString GetKeyAlgorithm(int iKeyIndex);

int GetKeyBits(int iKeyIndex);

QString GetKeyCurve(int iKeyIndex);

bool GetKeyExportable(int iKeyIndex);

QString GetKeyFingerprint(int iKeyIndex);

qint64 GetKeyHandle(int iKeyIndex);

QByteArray GetKeyID(int iKeyIndex);

QByteArray GetKeyIV(int iKeyIndex);

QByteArray GetKeyKey(int iKeyIndex);

QByteArray GetKeyNonce(int iKeyIndex);

bool GetKeyPrivate(int iKeyIndex);

bool GetKeyPublic(int iKeyIndex);

QByteArray GetKeySubject(int iKeyIndex);

bool GetKeySymmetric(int iKeyIndex);

bool GetKeyValid(int iKeyIndex);

Remarks

Use this property to access, browse, or iterate over keys contained in the storage.

This property is read-only and not available at design time.

Data Type

SecureBlackboxCryptoKey

Opened Property (CryptoKeyStorage Class)

Indicates whether the storage is in the open state.

Syntax

ANSI (Cross Platform)
int GetOpened();

Unicode (Windows)
BOOL GetOpened();
int secureblackbox_cryptokeystorage_getopened(void* lpObj);
bool GetOpened();

Default Value

FALSE

Remarks

Use this property to check if the storage has been 'opened.' Different kinds of key storages imply different meanings for 'being opened', but generally a storage is open if it is available for operations.

Use Open method to open a storage.

This property is read-only and not available at design time.

Data Type

Boolean

PinnedKey Property (CryptoKeyStorage Class)

A pinned key.

Syntax

SecureBlackboxCryptoKey* GetPinnedKey();
int SetPinnedKey(SecureBlackboxCryptoKey* val);
int64 secureblackbox_cryptokeystorage_getpinnedkeyhandle(void* lpObj);
int secureblackbox_cryptokeystorage_setpinnedkeyhandle(void* lpObj, int64 lPinnedKeyHandle);
qint64 GetPinnedKeyHandle();
int SetPinnedKeyHandle(qint64 lPinnedKeyHandle);

Remarks

Use this property to pin a key before adding it to the storage with AddPinned method.

This property is not available at design time.

Data Type

SecureBlackboxCryptoKey

SelectedKeys Property (CryptoKeyStorage Class)

A collection of selected keys.

Syntax

int secureblackbox_cryptokeystorage_getselectedkeycount(void* lpObj);
char* secureblackbox_cryptokeystorage_getselectedkeyalgorithm(void* lpObj, int selectedkeyindex);
int secureblackbox_cryptokeystorage_getselectedkeybits(void* lpObj, int selectedkeyindex);
char* secureblackbox_cryptokeystorage_getselectedkeycurve(void* lpObj, int selectedkeyindex);
int secureblackbox_cryptokeystorage_getselectedkeyexportable(void* lpObj, int selectedkeyindex);
char* secureblackbox_cryptokeystorage_getselectedkeyfingerprint(void* lpObj, int selectedkeyindex);
int64 secureblackbox_cryptokeystorage_getselectedkeyhandle(void* lpObj, int selectedkeyindex);
int secureblackbox_cryptokeystorage_getselectedkeyid(void* lpObj, int selectedkeyindex, char** lpSelectedKeyID, int* lenSelectedKeyID);
int secureblackbox_cryptokeystorage_getselectedkeyiv(void* lpObj, int selectedkeyindex, char** lpSelectedKeyIV, int* lenSelectedKeyIV);
int secureblackbox_cryptokeystorage_getselectedkeykey(void* lpObj, int selectedkeyindex, char** lpSelectedKeyKey, int* lenSelectedKeyKey);
int secureblackbox_cryptokeystorage_getselectedkeynonce(void* lpObj, int selectedkeyindex, char** lpSelectedKeyNonce, int* lenSelectedKeyNonce);
int secureblackbox_cryptokeystorage_getselectedkeyprivate(void* lpObj, int selectedkeyindex);
int secureblackbox_cryptokeystorage_getselectedkeypublic(void* lpObj, int selectedkeyindex);
int secureblackbox_cryptokeystorage_getselectedkeysubject(void* lpObj, int selectedkeyindex, char** lpSelectedKeySubject, int* lenSelectedKeySubject);
int secureblackbox_cryptokeystorage_getselectedkeysymmetric(void* lpObj, int selectedkeyindex);
int secureblackbox_cryptokeystorage_getselectedkeyvalid(void* lpObj, int selectedkeyindex);
int GetSelectedKeyCount();

QString GetSelectedKeyAlgorithm(int iSelectedKeyIndex);

int GetSelectedKeyBits(int iSelectedKeyIndex);

QString GetSelectedKeyCurve(int iSelectedKeyIndex);

bool GetSelectedKeyExportable(int iSelectedKeyIndex);

QString GetSelectedKeyFingerprint(int iSelectedKeyIndex);

qint64 GetSelectedKeyHandle(int iSelectedKeyIndex);

QByteArray GetSelectedKeyID(int iSelectedKeyIndex);

QByteArray GetSelectedKeyIV(int iSelectedKeyIndex);

QByteArray GetSelectedKeyKey(int iSelectedKeyIndex);

QByteArray GetSelectedKeyNonce(int iSelectedKeyIndex);

bool GetSelectedKeyPrivate(int iSelectedKeyIndex);

bool GetSelectedKeyPublic(int iSelectedKeyIndex);

QByteArray GetSelectedKeySubject(int iSelectedKeyIndex);

bool GetSelectedKeySymmetric(int iSelectedKeyIndex);

bool GetSelectedKeyValid(int iSelectedKeyIndex);

Remarks

This property contains a list of keys returned by Select method.

This property is read-only and not available at design time.

Data Type

SecureBlackboxCryptoKey

StorageID Property (CryptoKeyStorage Class)

A unique identifier of this storage.

Syntax

ANSI (Cross Platform)
char* GetStorageID();

Unicode (Windows)
LPWSTR GetStorageID();
char* secureblackbox_cryptokeystorage_getstorageid(void* lpObj);
QString GetStorageID();

Default Value

""

Remarks

Use this property to get a unique ID of this storage. The format of ID may differ for different kinds of key storages, and may range from a file path for a file storage, to a URI-like ID for a PKCS#11 storage, to an empty value for an in-memory storage.

This property is read-only.

Data Type

String

StorageLocation Property (CryptoKeyStorage Class)

Specifies the location of the currently opened storage.

Syntax

ANSI (Cross Platform)
char* GetStorageLocation();

Unicode (Windows)
LPWSTR GetStorageLocation();
char* secureblackbox_cryptokeystorage_getstoragelocation(void* lpObj);
QString GetStorageLocation();

Default Value

""

Remarks

Use this property to get the location of the active storage. The location indicates the nature of the storage and can be assigned with one of the below values (more values may be added in future):

cslUnspecifiedunspecified
cslMemorymemoryin-memory storage

cslFilefilefile storage

cslSystemsystemOS-specific certificate storage (e.g. CryptoAPI)

cslPKCS11pkcs11PKCS#11 compatible device

cslKMIPkmip
cslAppleappleApple certificates storage (macOS and iOS only)

cslJavajavajava key storage

This property is read-only.

Data Type

String

AddPinned Method (CryptoKeyStorage Class)

Adds the pinned key to the storage.

Syntax

ANSI (Cross Platform)
int AddPinned();

Unicode (Windows)
INT AddPinned();
int secureblackbox_cryptokeystorage_addpinned(void* lpObj);
int AddPinned();

Remarks

This method adds a key attached to the PinnedKey property to the storage. This method is a handy way of adding keys generated/returned by other components.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Clear Method (CryptoKeyStorage Class)

Removes all existing keys from the storage.

Syntax

ANSI (Cross Platform)
int Clear();

Unicode (Windows)
INT Clear();
int secureblackbox_cryptokeystorage_clear(void* lpObj);
int Clear();

Remarks

Use this method to empty the storage.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Close Method (CryptoKeyStorage Class)

Closes the logical storage.

Syntax

ANSI (Cross Platform)
int Close(int bSave);

Unicode (Windows)
INT Close(BOOL bSave);
int secureblackbox_cryptokeystorage_close(void* lpObj, int bSave);
int Close(bool bSave);

Remarks

Use this method to close logical storages connected to PKCS#11-compliant hardware security modules, or storages of similar persistent kinds. Closing a persistent storage with this method is important, as unused but unclosed storages consume extra resources and may result in eventual key locks.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Config Method (CryptoKeyStorage Class)

This method sets or retrieves a configuration setting.

Syntax

ANSI (Cross Platform)
char* Config(const char* lpszConfigurationString);

Unicode (Windows)
LPWSTR Config(LPCWSTR lpszConfigurationString);
char* secureblackbox_cryptokeystorage_config(void* lpObj, const char* lpszConfigurationString);
QString Config(const QString& qsConfigurationString);

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.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

CreateNew Method (CryptoKeyStorage Class)

Creates a new storage.

Syntax

ANSI (Cross Platform)
int CreateNew(const char* lpszStorageLocation, const char* lpszStorageID);

Unicode (Windows)
INT CreateNew(LPCWSTR lpszStorageLocation, LPCWSTR lpszStorageID);
int secureblackbox_cryptokeystorage_createnew(void* lpObj, const char* lpszStorageLocation, const char* lpszStorageID);
int CreateNew(const QString& qsStorageLocation, const QString& qsStorageID);

Remarks

Use this method to create new key storage.

StorageLocation specifies where the new storage should be created, and StorageID contains a unique storage identifier.

cslUnspecifiedunspecified
cslMemorymemoryin-memory storage

cslFilefilefile storage

cslSystemsystemOS-specific certificate storage (e.g. CryptoAPI)

cslPKCS11pkcs11PKCS#11 compatible device

cslKMIPkmip
cslAppleappleApple certificates storage (macOS and iOS only)

cslJavajavajava key storage

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DoAction Method (CryptoKeyStorage Class)

Performs an additional action.

Syntax

ANSI (Cross Platform)
char* DoAction(const char* lpszActionID, const char* lpszActionParams);

Unicode (Windows)
LPWSTR DoAction(LPCWSTR lpszActionID, LPCWSTR lpszActionParams);
char* secureblackbox_cryptokeystorage_doaction(void* lpObj, const char* lpszActionID, const char* lpszActionParams);
QString DoAction(const QString& qsActionID, const QString& qsActionParams);

Remarks

DoAction 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;....

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

GetStorageProperty Method (CryptoKeyStorage Class)

Returns the value of a custom key storage property.

Syntax

ANSI (Cross Platform)
char* GetStorageProperty(const char* lpszPropName);

Unicode (Windows)
LPWSTR GetStorageProperty(LPCWSTR lpszPropName);
char* secureblackbox_cryptokeystorage_getstorageproperty(void* lpObj, const char* lpszPropName);
QString GetStorageProperty(const QString& qsPropName);

Remarks

This method, together with SetStorageProperty, provides an extensible way of managing the certificate storage's settings that are not available through the primary properties of the component. The list of settings may be extended in future, in response to emergence of new storage variants and recognition of non-obvious storage usage scenarios.

Currently no custom properties are available for this component.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

ImportBytes Method (CryptoKeyStorage Class)

Imports a key to the storage.

Syntax

ANSI (Cross Platform)
int ImportBytes(const char* lpValue, int lenValue, int iFormat, const char* lpszKeyAlgorithm, const char* lpszScheme, const char* lpszSchemeParams, int iKeyType, const char* lpszPassword);

Unicode (Windows)
INT ImportBytes(LPCSTR lpValue, INT lenValue, INT iFormat, LPCWSTR lpszKeyAlgorithm, LPCWSTR lpszScheme, LPCWSTR lpszSchemeParams, INT iKeyType, LPCWSTR lpszPassword);
int secureblackbox_cryptokeystorage_importbytes(void* lpObj, const char* lpValue, int lenValue, int iFormat, const char* lpszKeyAlgorithm, const char* lpszScheme, const char* lpszSchemeParams, int iKeyType, const char* lpszPassword);
int ImportBytes(QByteArray qbaValue, int iFormat, const QString& qsKeyAlgorithm, const QString& qsScheme, const QString& qsSchemeParams, int iKeyType, const QString& qsPassword);

Remarks

Use this method to add a key from a byte array.

kffUnknown0The key format was not recognized as one of the known formats.

kffAuto1The default format in current circumstances. This depends on the key being loaded or saved.

kffDER2DER (binary) format

kffPEM3PEM format (base64-encoded with headers)

kffJSON4JSON key format

ktAuto0The default key type in current circumstances. This depends on the operation, the file content, and the storage type.

ktPublic1The operation should be performed on a public key.

ktSecret2The operation should be performed on a private or secret key

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ImportFromFile Method (CryptoKeyStorage Class)

Imports a key to the storage.

Syntax

ANSI (Cross Platform)
int ImportFromFile(const char* lpszFileName, int iFormat, const char* lpszKeyAlgorithm, const char* lpszScheme, const char* lpszSchemeParams, int iKeyType, const char* lpszPassword);

Unicode (Windows)
INT ImportFromFile(LPCWSTR lpszFileName, INT iFormat, LPCWSTR lpszKeyAlgorithm, LPCWSTR lpszScheme, LPCWSTR lpszSchemeParams, INT iKeyType, LPCWSTR lpszPassword);
int secureblackbox_cryptokeystorage_importfromfile(void* lpObj, const char* lpszFileName, int iFormat, const char* lpszKeyAlgorithm, const char* lpszScheme, const char* lpszSchemeParams, int iKeyType, const char* lpszPassword);
int ImportFromFile(const QString& qsFileName, int iFormat, const QString& qsKeyAlgorithm, const QString& qsScheme, const QString& qsSchemeParams, int iKeyType, const QString& qsPassword);

Remarks

Use this method to add a key stored in a file.

kffUnknown0The key format was not recognized as one of the known formats.

kffAuto1The default format in current circumstances. This depends on the key being loaded or saved.

kffDER2DER (binary) format

kffPEM3PEM format (base64-encoded with headers)

kffJSON4JSON key format

ktAuto0The default key type in current circumstances. This depends on the operation, the file content, and the storage type.

ktPublic1The operation should be performed on a public key.

ktSecret2The operation should be performed on a private or secret key

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ImportFromStream Method (CryptoKeyStorage Class)

Imports a key to the storage.

Syntax

ANSI (Cross Platform)
int ImportFromStream(SecureBlackboxStream* sStream, int iFormat, const char* lpszKeyAlgorithm, const char* lpszScheme, const char* lpszSchemeParams, int iKeyType, const char* lpszPassword);

Unicode (Windows)
INT ImportFromStream(SecureBlackboxStream* sStream, INT iFormat, LPCWSTR lpszKeyAlgorithm, LPCWSTR lpszScheme, LPCWSTR lpszSchemeParams, INT iKeyType, LPCWSTR lpszPassword);
int secureblackbox_cryptokeystorage_importfromstream(void* lpObj, SecureBlackboxStream* sStream, int iFormat, const char* lpszKeyAlgorithm, const char* lpszScheme, const char* lpszSchemeParams, int iKeyType, const char* lpszPassword);
int ImportFromStream(SecureBlackboxStream* sStream, int iFormat, const QString& qsKeyAlgorithm, const QString& qsScheme, const QString& qsSchemeParams, int iKeyType, const QString& qsPassword);

Remarks

Use this method to add a key contained in a stream.

kffUnknown0The key format was not recognized as one of the known formats.

kffAuto1The default format in current circumstances. This depends on the key being loaded or saved.

kffDER2DER (binary) format

kffPEM3PEM format (base64-encoded with headers)

kffJSON4JSON key format

ktAuto0The default key type in current circumstances. This depends on the operation, the file content, and the storage type.

ktPublic1The operation should be performed on a public key.

ktSecret2The operation should be performed on a private or secret key

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ListStores Method (CryptoKeyStorage Class)

Returns a list of individual stores available within the storage.

Syntax

ANSI (Cross Platform)
char* ListStores();

Unicode (Windows)
LPWSTR ListStores();
char* secureblackbox_cryptokeystorage_liststores(void* lpObj);
QString ListStores();

Remarks

Use this method to query a list of individual stores available in the opened storage.

The contents of the list depends on the type of the store used and the parameters it is opened with. For PKCS#11 stores the method returns a list of slot descriptions for all slots published by the driver.

The store identifiers are separated from each other with a CRLF sequence.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

Login Method (CryptoKeyStorage Class)

Signs in to a session or elevates the session rights.

Syntax

ANSI (Cross Platform)
int Login(int iSessionType, const char* lpszPin, int bReadOnly);

Unicode (Windows)
INT Login(INT iSessionType, LPCWSTR lpszPin, BOOL bReadOnly);
int secureblackbox_cryptokeystorage_login(void* lpObj, int iSessionType, const char* lpszPin, int bReadOnly);
int Login(int iSessionType, const QString& qsPin, bool bReadOnly);

Remarks

Use this method to sign in to a session with a required access type. Note that in some cases you may call this method more than one time for a specific session to elevate your access rights, for example: // open an unauthenticated session storage.Login(stUnauthenticated, "", false); // elevate the access rights for the session storage.Login(stUser, "password", false); Sessions are currently supported for PKCS#11 storage types only.

stUnauthenticated0
stUser1
stAdministrator2

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Logout Method (CryptoKeyStorage Class)

Signs out of an opened session.

Syntax

ANSI (Cross Platform)
int Logout(int bCloseSesion);

Unicode (Windows)
INT Logout(BOOL bCloseSesion);
int secureblackbox_cryptokeystorage_logout(void* lpObj, int bCloseSesion);
int Logout(bool bCloseSesion);

Remarks

Use this method to sign out of a session. Pass true to CloseSession to shut the session down altogether.

This method is currently support for PKCS#11 storage type only.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Open Method (CryptoKeyStorage Class)

Opens existing storage or creates one in memory.

Syntax

ANSI (Cross Platform)
int Open(const char* lpszStorageID);

Unicode (Windows)
INT Open(LPCWSTR lpszStorageID);
int secureblackbox_cryptokeystorage_open(void* lpObj, const char* lpszStorageID);
int Open(const QString& qsStorageID);

Remarks

Use this method to open the storage with the given StorageID. Key storages can come from several different locations, detailed below.

Memory

A storage can be created in memory by passing an empty string ("").

File

A storage can be opened from a file using one of two syntaxes:

  • C:\Certs\keys.pem
  • file://C:/Certs/keys.pem

Windows System

A storage can be opened from the Windows System using this syntax: system://{user}@{host}/?{params}

user is one of these values:

  • currentuser
  • localmachine
  • currentservice
host is either "localhost", an IP address, or FQDN.

params are chosen from this list:

  • store (required), is the name of the Windows store to access (e.g. "MY")
  • readonly, whether to access the store with only read permissions. Use 0 for false, and 1 for true.
Example: system://currentuser@localhost/?store=MY&readonly=1

PKCS#11 Device

A storage can be opened from a PKCS#11 device using this syntax: pkcs11://{user}:{pin}@/{driverpath}?{params}

user is the username used to access the device.

pin is the pin code used to access the device.

driverpath is the path to the driver used to access the device.

params are chosen from this list:

  • slot, the token slot to access on the device. If not provided, one will be chosen automatically.
  • readonly, whether to access the device with only read permissions. Use 0 for false, and 1 for true.
Example: pkcs11://john.doe:1234@/c:/windows/system32/asepkcs.dll?slot=0&readonly=1

KMIP Server

A storage can be opened from a KMIP server using this syntax: mailto:{password}@{remotehost}:{remoteport}/?{params}

password is the password use to authenticate to the server.

remotehost is the FQDN to the server.

remoteport is the server port to connect to.

params are chosen from this list:

  • encoder, the message encoding used to communicate with the server. Possible values are:
    • 1 (XML)
    • 2 (JSON)
    • 3 (TTLV)
Example: mailto:password@kmip.website.com:5696/?encoder=1

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Refresh Method (CryptoKeyStorage Class)

Refreshes all storage keychains.

Syntax

ANSI (Cross Platform)
int Refresh();

Unicode (Windows)
INT Refresh();
int secureblackbox_cryptokeystorage_refresh(void* lpObj);
int Refresh();

Remarks

Call this method to refresh the storage.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Remove Method (CryptoKeyStorage Class)

Removes a key from the storage.

Syntax

ANSI (Cross Platform)
int Remove(int iIndex);

Unicode (Windows)
INT Remove(INT iIndex);
int secureblackbox_cryptokeystorage_remove(void* lpObj, int iIndex);
int Remove(int iIndex);

Remarks

Use this method to remove a key from the storage by its index.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Reset Method (CryptoKeyStorage Class)

Resets the class settings.

Syntax

ANSI (Cross Platform)
int Reset();

Unicode (Windows)
INT Reset();
int secureblackbox_cryptokeystorage_reset(void* lpObj);
int Reset();

Remarks

Reset is a generic method available in every class.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Select Method (CryptoKeyStorage Class)

Allows the selection of keys from the store.

Syntax

ANSI (Cross Platform)
int Select(const char* lpszFilter, int bPrivateKeyNeeded, int iMaxCount);

Unicode (Windows)
INT Select(LPCWSTR lpszFilter, BOOL bPrivateKeyNeeded, INT iMaxCount);
int secureblackbox_cryptokeystorage_select(void* lpObj, const char* lpszFilter, int bPrivateKeyNeeded, int iMaxCount);
int Select(const QString& qsFilter, bool bPrivateKeyNeeded, int iMaxCount);

Remarks

This function allows the user to select keys from the storage by applying a Filter. PrivateKeyNeeded specifies whether only private keys should be selected. MaxCount limits the number of certificates selected.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SetStorageProperty Method (CryptoKeyStorage Class)

Sets the value of a custom key storage property.

Syntax

ANSI (Cross Platform)
int SetStorageProperty(const char* lpszPropName, const char* lpszPropValue);

Unicode (Windows)
INT SetStorageProperty(LPCWSTR lpszPropName, LPCWSTR lpszPropValue);
int secureblackbox_cryptokeystorage_setstorageproperty(void* lpObj, const char* lpszPropName, const char* lpszPropValue);
int SetStorageProperty(const QString& qsPropName, const QString& qsPropValue);

Remarks

This method, together with GetStorageProperty, provides an extensible way of managing the certificate storage's settings that are not available through the primary properties of the component. The list of settings may be extended in future, in response to emergence of new storage variants and recognition of non-obvious storage usage scenarios.

Currently no custom properties are available for this component.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Error Event (CryptoKeyStorage Class)

Fires when an errors happens during a key storage operation.

Syntax

ANSI (Cross Platform)
virtual int FireError(CryptoKeyStorageErrorEventParams *e);
typedef struct {
int ErrorCode;
const char *Description; int reserved; } CryptoKeyStorageErrorEventParams;
Unicode (Windows) virtual INT FireError(CryptoKeyStorageErrorEventParams *e);
typedef struct {
INT ErrorCode;
LPCWSTR Description; INT reserved; } CryptoKeyStorageErrorEventParams;
#define EID_CRYPTOKEYSTORAGE_ERROR 1

virtual INT SECUREBLACKBOX_CALL FireError(INT &iErrorCode, LPSTR &lpszDescription);
class CryptoKeyStorageErrorEventParams {
public:
  int ErrorCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Error(CryptoKeyStorageErrorEventParams *e);
// Or, subclass CryptoKeyStorage and override this emitter function. virtual int FireError(CryptoKeyStorageErrorEventParams *e) {...}

Remarks

This event reports an exceptional situation during a key storage operation.

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

Notification Event (CryptoKeyStorage Class)

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

Syntax

ANSI (Cross Platform)
virtual int FireNotification(CryptoKeyStorageNotificationEventParams *e);
typedef struct {
const char *EventID;
const char *EventParam; int reserved; } CryptoKeyStorageNotificationEventParams;
Unicode (Windows) virtual INT FireNotification(CryptoKeyStorageNotificationEventParams *e);
typedef struct {
LPCWSTR EventID;
LPCWSTR EventParam; INT reserved; } CryptoKeyStorageNotificationEventParams;
#define EID_CRYPTOKEYSTORAGE_NOTIFICATION 2

virtual INT SECUREBLACKBOX_CALL FireNotification(LPSTR &lpszEventID, LPSTR &lpszEventParam);
class CryptoKeyStorageNotificationEventParams {
public:
  const QString &EventID();

  const QString &EventParam();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Notification(CryptoKeyStorageNotificationEventParams *e);
// Or, subclass CryptoKeyStorage and override this emitter function. virtual int FireNotification(CryptoKeyStorageNotificationEventParams *e) {...}

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.

PasswordNeeded Event (CryptoKeyStorage Class)

This event is fired when a decryption password is needed.

Syntax

ANSI (Cross Platform)
virtual int FirePasswordNeeded(CryptoKeyStoragePasswordNeededEventParams *e);
typedef struct {
const char *NeededFor;
char *Password;
int Cancel; int reserved; } CryptoKeyStoragePasswordNeededEventParams;
Unicode (Windows) virtual INT FirePasswordNeeded(CryptoKeyStoragePasswordNeededEventParams *e);
typedef struct {
LPCWSTR NeededFor;
LPWSTR Password;
BOOL Cancel; INT reserved; } CryptoKeyStoragePasswordNeededEventParams;
#define EID_CRYPTOKEYSTORAGE_PASSWORDNEEDED 3

virtual INT SECUREBLACKBOX_CALL FirePasswordNeeded(LPSTR &lpszNeededFor, LPSTR &lpszPassword, BOOL &bCancel);
class CryptoKeyStoragePasswordNeededEventParams {
public:
  const QString &NeededFor();

  const QString &Password();
  void SetPassword(const QString &qsPassword);

  bool Cancel();
  void SetCancel(bool bCancel);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void PasswordNeeded(CryptoKeyStoragePasswordNeededEventParams *e);
// Or, subclass CryptoKeyStorage and override this emitter function. virtual int FirePasswordNeeded(CryptoKeyStoragePasswordNeededEventParams *e) {...}

Remarks

The class fires this event when a password is needed to decrypt a certificate or a private key.

In the handler of this event, assign the password to the Password parameter, or set Cancel to true to abort the operation.

The NeededFor parameter identifies the key or certificate for which the password is requested.

CryptoKey Type

This container represents a cryptographic key.

Syntax

SecureBlackboxCryptoKey (declared in secureblackbox.h)

Remarks

This type is a universal placeholder for cryptographic keys.

Fields

Algorithm
char*

Default Value: ""

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
int (read-only)

Default Value: 0

The length of the key in bits.

Curve
char*

Default Value: ""

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

Exportable
int (read-only)

Default Value: FALSE

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

Fingerprint
char* (read-only)

Default Value: ""

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

Handle
int64

Default Value: 0

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
char*

Default Value:

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
char*

Default Value:

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
char* (read-only)

Default Value:

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

Nonce
char*

Default Value:

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

Private
int (read-only)

Default Value: FALSE

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

Public
int (read-only)

Default Value: FALSE

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

Subject
char*

Default Value:

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

Symmetric
int (read-only)

Default Value: FALSE

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

Valid
int (read-only)

Default Value: 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

CryptoKey()

Creates an empty crypto key object.

SecureBlackboxList Type

Syntax

SecureBlackboxList<T> (declared in secureblackbox.h)

Remarks

SecureBlackboxList is a generic class that is used to hold a collection of objects of type T, where T is one of the custom types supported by the CryptoKeyStorage class.

Methods

GetCount This method returns the current size of the collection.

int GetCount() {}

SetCount This method sets the size of the collection. This method returns 0 if setting the size was successful; or -1 if the collection is ReadOnly. When adding additional objects to a collection call this method to specify the new size. Increasing the size of the collection preserves existing objects in the collection.

int SetCount() {}

Get This method gets the item at the specified position. The index parameter specifies the index of the item in the collection. This method returns NULL if an invalid index is specified.

T* Get(int index) {}

Set This method sets the item at the specified position. The index parameter specifies the index of the item in the collection that is being set. This method returns -1 if an invalid index is specified. Note: Objects created using the new operator must be freed using the delete operator; they will not be automatically freed by the class.

T* Set(int index, T* value) {}

SecureBlackboxStream Type

Syntax

SecureBlackboxStream (declared in secureblackbox.h)

Remarks

The CryptoKeyStorage class includes one or more API members that take a stream object as a parameter. To use such API members, create a concrete class that implements the SecureBlackboxStream interface and pass the CryptoKeyStorage class an instance of that concrete class.

When implementing the SecureBlackboxStream interface's properties and methods, they must behave as described below. If the concrete class's implementation does not behave as expected, undefined behavior may occur.

Properties

CanRead Whether the stream supports reading.

bool CanRead() { return true; }
CanSeek Whether the stream supports seeking.

bool CanSeek() { return true; }
CanWrite Whether the stream supports writing.

bool CanWrite() { return true; }
Length Gets the length of the stream, in bytes.

int64 GetLength() = 0;

Methods

Close Closes the stream, releasing all resources currently allocated for it.

void Close() {}

This method is called automatically when a SecureBlackboxStream object is deleted.

Flush Forces all data held by the stream's buffers to be written out to storage.

int Flush() { return 0; }

Must return 0 if flushing is successful; or -1 if an error occurs or the stream is closed. If the stream does not support writing, this method must do nothing and return 0.

Read Reads a sequence of bytes from the stream and advances the current position within the stream by the number of bytes read.

int Read(void* buffer, int count) = 0;

Buffer specifies the buffer to populate with data from the stream. Count specifies the number of bytes that should be read from the stream.

Must return the total number of bytes read into Buffer; this may be less than Count if that many bytes are not currently available, or 0 if the end of the stream has been reached. Must return -1 if an error occurs, if reading is not supported, or if the stream is closed.

Seek Sets the current position within the stream based on a particular point of origin.

int64 Seek(int64 offset, int seekOrigin) = 0;

Offset specifies the offset in the stream to seek to, relative to SeekOrigin. Valid values for SeekOrigin are:

  • 0: Seek from beginning.
  • 1: Seek from current position.
  • 2: Seek from end.

Must return the new position within the stream; or -1 if an error occurs, if seeking is not supported, or if the stream is closed (however, see note below). If -1 is returned, the current position within the stream must remain unchanged.

Note: If the stream is not closed, it must always be possible to call this method with an Offset of 0 and a SeekOrigin of 1 to obtain the current position within the stream, even if seeking is not otherwise supported.

Write Writes a sequence of bytes to the stream and advances the current position within the stream by the number of bytes written.

int Write(const void* buffer, int count) = 0;

Buffer specifies the buffer with data to write to the stream. Count specifies the number of bytes that should be written to the stream.

Must return the total number of bytes written to the stream; this may be less than Count if that many bytes could not be written. Must return -1 if an error occurs, if writing is not supported, or if the stream is closed.

Config Settings (CryptoKeyStorage Class)

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.

CryptoKeyStorage 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

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.

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".

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.

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.

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).

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.

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 (CryptoKeyStorage Class)

Error Handling (C++)

Call the GetLastErrorCode() method to obtain the last called method's result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. Known error codes are listed below. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

CryptoKeyStorage 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)