Developer Reference

Contents

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.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.