RSA Security 5 manual BSignUpdate

B_SignUpdate

B_SignUpdate

int B_SignUpdate (
B_ALGORITHM_OBJ algorithmObject,		/* algorithm object */
unsigned char	*partIn,	/* input data */
unsigned int	partInLen,	/* length of input data */
A_SURRENDER_CTX *surrenderContext		/* surrender context */
);

Description

B_SignUpdate updates the digesting process for algorithmObject with partInLen bytes from partIn. The surrender context for processing and canceling during lengthy operations is surrenderContext; if its value is (A_SURRENDER_CTX *)NULL_PTR, Crypto- C does not use it. B_SignUpdate may be called zero or more times to supply the data by parts. See B_SignInit.

Return value

Value	Description
0	Operation was successful.
non-zero	Error. See Appendix A, ”Crypto-C Error Types.”

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