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);

pPrivate	Pointer to the input private key privKey.
pPublic	Pointer to the output public key pubKey.
pCtx	Pointer to the cryptosystem context.

This function is declared in the ippcp.h file. The function computes a public key pubKey of the DL-based cryptosystem.

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.