DLPGet¶
Retrieves domain parameters of the DL-based cryptosystem over GF(p).
Syntax¶
IppStatus ippsDLPGet(IppsBigNumState* pP, IppsBigNumState* pQ, IppsBigNumState* pG, IppsDLPState* pCtx);
Include Files¶
ippcp.h
Parameters¶
pP |
Pointer to the characteristic p of the prime finite field GF(p). |
pQ |
Pointer to the characteristic q of the multiplicative subgroup GF(q). |
pG |
Pointer to the generator G of the multiplicative subgroup GF(r). |
pCtx |
Pointer to the cryptosystem context. |
Description¶
The function retrieves DL-based cryptosystem domain parameters into the cryptosystem context.
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. |
ippStsIncompleteContextErr |
Indicates an error condition if the cryptosystem context has not been properly set up. |
ippStsRangeErr |
Indicates an error condition if any of the Big Numbers specified by pP, pR, and pG is too small for the DL parameter. |