MD5Pack, MD5Unpack

Packs/unpacks the IppsMD5State context into/from a user-defined buffer.

Syntax

IppStatus ippsMD5Pack (const IppsMD5State* pCtx, Ipp8u* pBuffer);

IppStatus ippsMD5Unpack (const Ipp8u* pBuffer, IppsMD5State* pCtx);

Parameters

pCtx	Pointer to the IppsMD5State context.
pBuffer	Pointer to the user-defined buffer.

Description

This functions are declared in the ippcp.h file. The MD5Pack function transforms the *pCtx context to a position-independent form and stores it in the the *pBuffer buffer. The MD5Unpack function performs the inverse operation, that is, transforms the contents of the *pBuffer buffer into a normal IppsMD5State context. The MD5Pack and MD5Unpack functions enable replacing the position-dependent IppsMD5State context in the memory.

Call the MD5GetSize function prior to MD5Pack/MD5Unpack to determine the size of the buffer.

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.