DLPGenKeyPair
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 keyprivKey.
- pPublic
- Pointer to the public keypubKey.
- 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 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.
- ippStsRangeErr
- Indicates an error condition if any of the Big Numbers specified bypPrivateandpPublicis too small for the DL key.