Developer Reference

Contents

DLPValidateKeyPair

Validates private and public keys of the DL-based cryptosystem over GF(p).

Syntax

IppStatus ippsDLPValidateKeyPair(const IppsBigNumState*
pPrivate
, const IppsBigNumState*
pPublic
, IppDLResult*
pResult
, IppsDLPState*
pCtx
);
Include Files
ippcp.h
Parameters
pPrivate
Pointer to the input private key
privKey
.
pPublic
Pointer to the output public key
pubKey
.
pResult
Pointer to the validation result.
pCtx
Pointer to the cryptosystem context.
Description
The function validates the private key
privKey
and the public key
pubKey
of the DL-based cryptosystem. The result of the validation is stored in the
*pResult
and may be assigned to one of the enumerators listed below:
ippDLValid
Validation has passed successfully.
ippDLInvalidPrivateKey
(1 <
private
< (
R
- 1)) is false.
ippDLInvalidPublicKey
(1 <
public
(
P
- 1)) is false.
ippDLInvalidKeyPair
public
!=
G
^
private
(mod
P
).
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.

Product and Performance Information

1

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