SecureBlackbox 2020 C++ Edition

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Sign Method

Signs a buffer.

Syntax

ANSI (Cross Platform)
char* Sign(const char* lpBuffer, int lenBuffer, int bDetached, int *lpSize = NULL);

Unicode (Windows)
LPSTR Sign(LPCSTR lpBuffer, INT lenBuffer, BOOL bDetached, LPINT lpSize = NULL);
- (NSData*)sign:(NSData*)buffer :(BOOL)detached;
#define MID_PUBLICKEYCRYPTO_SIGN 9

SECUREBLACKBOX_EXTERNAL int SECUREBLACKBOX_CALL SecureBlackbox_PublicKeyCrypto_Do(void *lpObj, int methid, int cparam, void *param[], int cbparam[], int64 *lpllVal);

Remarks

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

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

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

Error Handling (C++)

This method returns a Byte Array value (with length lpSize); 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.

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SecureBlackbox 2020 C++ Edition - Version 20.0 [Build 8166]