SVC_SHA1Update

Syntax

#include <twl/os/common/systemCall.h>
void SVC_SHA1Update( SVCSHA1Context *context,
                       const void* data,
                       unsigned long len );

Arguments

context Pointer to the context structure used for SHA-1 generation.
data Pointer to the input data.
len Size of the input data.

Return Values

None.

Description

This function updates the SHA-1 digest value based on the input data.

context must be initialized beforehand with SVC_SHA1Init().

Call this function as many times as needed, and then use the SVC_SHA1GetHash function to obtain the digest value. Specify the input data using data and len. Any size and alignment position can be used.

SHA-1 is an algorithm to find the message digest value. For details, see RFC (Request For Comments) 3174, which is published by IETF (the Internet Engineering Task Force).

See Also

SVC_SHA1Init, SVC_SHA1GetHash

Revision History

2007/10/19 Initial version.


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