Visible to Intel only — GUID: GUID-9ECD9BE5-BE40-4BA5-881F-00E900F8B477
Visible to Intel only — GUID: GUID-9ECD9BE5-BE40-4BA5-881F-00E900F8B477
SHA1Pack, SHA1Unpack
Packs/unpacks the IppsSHA1State context into/from a user-defined buffer.
Syntax
IppStatus ippsSHA1Pack (const IppsSHA1State* pCtx, Ipp8u* pBuffer);
IppStatus ippsSHA1Unpack (const Ipp8u* pBuffer, IppsSHA1State* pCtx);
Include Files
ippcp.h
Parameters
pCtx |
Pointer to the IppsSHA1State context. |
pBuffer |
Pointer to the user-defined buffer. |
Description
The SHA1Pack function transforms the *pCtx context to a position-independent form and stores it in the *pBuffer buffer. The SHA1Unpack function performs the inverse operation, that is, transforms the contents of the *pBuffer buffer into a normal IppsSHA1State context. The SHA1Pack and SHA1Unpack functions enable replacing the position-dependent IppsSHA1State context in the memory.
Call the SHA1GetSize function prior to SHA1Pack/SHA1Unpack 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. |