SHA256Pack, SHA256Unpack
Packs/unpacks the
IppsSHA256State
context into/from a user-defined buffer.Syntax
IppStatus ippsSHA256Pack (const IppsSHA256State*
pCtx
, Ipp8u*
pBuffer
);
IppStatus ippsSHA256Unpack (const Ipp8u*
pBuffer
, IppsSHA256State*
pCtx
);
Include Files
ippcp.h
Parameters
- pCtx
- Pointer to theIppsSHA256Statecontext.
- pBuffer
- Pointer to the user-defined buffer.
Description
The
SHA256Pack
function transforms the *pCtx
context to a position-independent form and stores it in the *pBuffer
buffer. The SHA256Unpack
function performs the inverse operation, that is, transforms the contents of the *pBuffer
buffer into a normal IppsSHA256State
context. The SHA256Pack
and SHA256Unpack
functions enable replacing the position-dependent IppsSHA256State
context in the memory. Call the
SHA256GetSize
function prior to SHA256Pack
/SHA256Unpack
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 isNULL.