DLPGenKeyPair¶
Generates a private key and computes public keys of the DL-based cryptosystem over GF(p).
Syntax¶
IppStatus ippsDLPGenKeyPair(IppsBigNumState* pPrivate, IppsBigNumState* pPublic, IppsDLPState* pCtx, IppBitSupplier rndFunc, void* pRndParam);
Include Files¶
ippcp.h
Parameters¶
pPrivate |
Pointer to the private key privKey. |
pPublic |
Pointer to the public key pubKey. |
pCtx |
Pointer to the cryptosystem context. |
rndFunc |
Specifed Random Generator. |
pRndParam |
Pointer to the Random Generator context. |
Description¶
The function generates a private key privKey and computes a public key pubKey of the DL-based cryptosystem. The function employs specified rndFunc Random Generator to generate a pseudorandom private key. The value of the private key privKey is a random number that lies in the range of [2,R-2].
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 pPrivate and pPublic is too small for the DL key. |