EncryptAndSign Method

Encrypts and signs a buffer.

Syntax

• C++
• Objective-C
• C

ANSI (Cross Platform)
char* EncryptAndSign(const char* lpBuffer, int lenBuffer, int iStartIndex, int iCount, int *lpSize = NULL);

Unicode (Windows)
LPSTR EncryptAndSign(LPCSTR lpBuffer, INT lenBuffer, INT iStartIndex, INT iCount, LPINT lpSize = NULL);

- (NSData*)encryptAndSign:(NSData*)buffer :(int)startIndex :(int)count;

#define MID_PGPWRITER_ENCRYPTANDSIGN 8

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

Remarks

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

Specify encryption keys in EncryptingKeys property, and/or encryption password via Passphrase property. Use SigningKeys to provide the signing keys.

Please note that you might need to provide a passphrase to decrypt your signing key. This can be done via KeyPassphraseNeeded event, or by assigning the passphrase to the key object's Passphrase property.

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.