Visible to Intel only — GUID: GUID-57D79587-9772-434A-999F-85FC19E3B8EE
Visible to Intel only — GUID: GUID-57D79587-9772-434A-999F-85FC19E3B8EE
DESPack, DESUnpack
Packs/unpacks the IppsDESSpec context into/from a user-defined buffer (deprecated).
Syntax
IppStatus ippsDESPack(const IppsDESSpec* pCtx, Ipp8u* pBuffer);
IppStatus ippsDESUnpack(const Ipp8u* pBuffer, IppsDESSpec* pCtx);
Include Files
ippcp.h
Parameters
pCtx |
Pointer to the IppsDESSpec context. |
pBuffer |
Pointer to the user-defined buffer. |
Description
The DESPack function transforms the *pCtx context to a position-independent form and stores it in the *pBuffer buffer. The DESUnpack function performs the inverse operation, that is, transforms the contents of the *pBuffer bufferinto a normal IppsDESSpec context. The DESPack and DESUnpackfunctions enable replacing the position-dependent IppsDESSpec contextin the memory.
Call the DESGetSize functionprior to DESPack/DESUnpack 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 pCtx pointer does not contain the IppsDESSpec context. |