DAARijndael256Update

Digest the current input message stream of the specified length.

Syntax

IppStatus ippsDAARijndael256Update(const Ipp8u *pSrcMesg, int mesglen, IppsDAARijndael256State* pCtx);

Parameters

pSrcMesg

Pointer to the buffer containing a part or the whole message.

mesglen

Length of the actual part of the message in bytes.

pCtx

Pointer to the IppsDAARijndael256State context.

Description

This function is declared in the ippcp.h file. The function digests the current input message stream of the specified length. The function first integrates the previous partial message block with the input message stream, and then partitions them into multiple message blocks (as specified by applied hash algorithm) with a possible additional partial block. For each message block, the function uses the selected block cipher to transform the block of plaintext into a new chaining digest value.

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error or warning.

ippStsNullPtrErr

Indicates an error condition if any of the specified pointers is NULL.

ippStsLengthErr

Indicates an error condition if the input data stream length is less than zero.

ippStsContextMatchErr

Indicates an error condition if the context parameter does not match the operation.

See Also

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