Developer Reference

Contents

DLPSharedSecretDH

Computes a shared field element by using the Diffie-Hellman scheme.

Syntax

IppStatus ippsDLPSharedSecretDH(const IppsBigNumState*
pPrivateA
, const IppsBigNumState*
pPublicB
, IppsBigNumState*
pShare
, IppsDLPState*
pCtx
);
Include Files
ippcp.h
Parameters
pPrivateA
Pointer to your own private key
privateKeyA
.
pPublicB
Pointer to the public key
pubKeyB
belonging to the other party.
pShare
Pointer to the shared secret element
Share
.
pCtx
Pointer to the cryptosystem context.
Description
The function computes a shared secret element FG(p)
pubKeyB
privateKeyA
(
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.
ippStsRangeErr
Indicates an error condition if
Share
does not have enough space.

Product and Performance Information

1

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