Rijndael128Pack, Rijndael128Unpack

Packs/unpacks the IppsRijndael128Spec context into/from a user-defined buffer.

Syntax

IppStatus ippsRijndael128Pack (const IppsRijndael128Spec* pCtx, Ipp8u* pBuffer);

IppStatus ippsRijndael128Unpack (const Ipp8u* pBuffer, IppsRijndael128Spec* pCtx);

Parameters

pCtx	Pointer to the IppsRijndael128Spec context.
pBuffer	Pointer to the user-defined buffer.

Description

This functions are declared in the ippcp.h file. The Rijndael128Pack function transforms the *pCtx context to a position-independent form and stores it in the *pBuffer buffer. The Rijndael128Unpack function performs the inverse operation, that is, transforms the contents of the *pBuffer buffer into a normal IppsRijndael128Spec context. The Rijndael128Pack and Rijndael128Unpack functions enable replacing the position-dependent IppsRijndael128Spec context in the memory.

Call the Rijndael128GetSize function prior to Rijndael128Pack/Rijndael128Unpack 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.