Developer Reference

Contents

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.

Product and Performance Information

1

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