DLPPublicKey¶
Computes a public key from the given private key of the DL-based cryptosystem over GF(p).
Syntax¶
IppStatus ippsDLPPublicKey(const IppsBigNumState* pPrivate, IppsBigNumState* pPublic, IppsDLPState* pCtx);
Include Files¶
ippcp.h
Parameters¶
pPrivate |
Pointer to the input private key privKey. |
pPublic |
Pointer to the output public key pubKey. |
pCtx |
Pointer to the cryptosystem context. |
Description¶
The function computes a public key pubKey of the DL-based cryptosystem.
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. |
ippStsInvalidPrivateKey |
Indicates an error condition if the privKey has an illegal value. |
ippStsRangeErr |
Indicates an error condition if Big Number specified by pPublic is too small for the DL public key. |