SHA224Pack, SHA224Unpack¶
Packs/unpacks the IppsSHA224State context into/from a user-defined buffer.
Syntax¶
IppStatus ippsSHA224Pack (const IppsSHA224State* pCtx, Ipp8u* pBuffer);
IppStatus ippsSHA224Unpack (const Ipp8u* pBuffer, IppsSHA224State* pCtx);
Include Files¶
ippcp.h
Parameters¶
pCtx |
Pointer to the IppsSHA224State context. |
pBuffer |
Pointer to the user-defined buffer. |
Description¶
The SHA224Pack function transforms the *pCtx context to a position-independent form and stores it in the *pBuffer buffer. The SHA224Unpack function performs the inverse operation, that is, transforms the contents of the *pBuffer buffer into a normal IppsSHA224State context. The SHA224Pack and SHA224Unpack functions enable replacing the position-dependent IppsSHA224State context in the memory.
Call the SHA224GetSize function prior to SHA224Pack/SHA224Unpack 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. |