Visible to Intel only — GUID: GUID-856EBB61-15E7-406F-B8A1-9C2DF4697F28
Visible to Intel only — GUID: GUID-856EBB61-15E7-406F-B8A1-9C2DF4697F28
SMS4Init
Initializes user-supplied memory as IppsSMS4Spec context for future use.
Syntax
IppStatus ippsSMS4Init(const Ipp8u* pKey, int keyLen, IppsSMS4Spec* pCtx, int ctxSize);
Include Files
ippcp.h
Parameters
pKey |
Pointer to the SMS4 key. |
keyLen |
Key byte stream length. Must equal 16. |
pCtx |
Pointer to the buffer being initialized as IppsSMS4Spec context. |
ctxSize |
Available size of the buffer being initialized. |
Description
This function initializes the memory pointed by pCtx as IppsSMS4Spec. The key is used to provide all necessary key material for both encryption and decryption operations.
Return Values
ippStsNoErr |
Indicates no error. Any other value indicates an error or warning. |
ippStsNullPtrErr |
Indicates an error condition if the pCtx pointer is NULL. |
ippStsLengthErr |
Returns an error condition if keyLen is not equal to 16. |
ippStsMemAllocErr |
Indicates an error condition if the allocated memory is insufficient for the operation. |
ippStsContextMatchErr |
Indicates an error condition if the context parameter does not match the operation. |
Related Information