DLPPublicKey
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 keyprivKey.
- pPublic
- Pointer to the output public keypubKey.
- 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 isNULL.
- 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 theprivKeyhas an illegal value.
- ippStsRangeErr
- Indicates an error condition if Big Number specified bypPublicis too small for the DL public key.