Visible to Intel only — GUID: GUID-D051E1DC-B617-47E2-A8AE-FB6E4DD003F2
Visible to Intel only — GUID: GUID-D051E1DC-B617-47E2-A8AE-FB6E4DD003F2
DESPack, DESUnpack
Packs/unpacks the IppsDESSpec context into/from a user-defined buffer (deprecated).
IppStatus ippsDESPack (const IppsDESSpec* pCtx, Ipp8u* pBuffer);
IppStatus ippsDESUnpack (const Ipp8u* pBuffer, IppsDESSpec* pCtx);
ippcp.h
pCtx |
Pointer to the IppsDESSpec context. |
pBuffer |
Pointer to the user-defined buffer. |
This algorithm is considered weak due to known attacks on it. The functionality remains in the library, but the implementation will no longer be optimized and no security patches will be applied. A more secure alternative is available: AES.
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 buffer into a normal IppsDESSpec context. The DESPack and DESUnpack functions enable replacing the position-dependent IppsDESSpec context in the memory.
Call the DESGetSize function prior to DESPack/DESUnpack to determine the size of the buffer.
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. |
Did you find the information on this page useful?
Feedback Message
Characters remaining: