SM3Pack, SM3Unpack¶
Packs/unpacks the IppsSM3State context into/from a user-defined buffer.
Syntax¶
IppStatus ippsSM3Pack (const IppsSM3State* pCtx, Ipp8u* pBuffer);
IppStatus ippsSM3Unpack (const Ipp8u* pBuffer, IppsSM3State* pCtx);
Include Files¶
ippcp.h
Parameters¶
pCtx |
Pointer to the IppsSM3State context. |
pBuffer |
Pointer to the user-defined buffer. |
Description¶
The SM3Pack function transforms the *pCtx context to a position-independent form and stores it in the *pBuffer buffer. The SM3Unpack function performs the inverse operation, that is, transforms the contents of the *pBuffer buffer into a normal IppsSM3State context. The SM3Pack and SM3Unpack functions enable replacing the position-dependent IppsSM3State context in the memory.
Call the SM3GetSize function prior to SM3Pack/SM3Unpack 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. |
ippStsContextMatchErr |
Indicates an error condition if the context parameter does not match the operation. |