Developer Reference

Contents

DLPGet

Retrieves domain parameters of the DL-based cryptosystem over GF(p).

Syntax

IppStatus ippsDLPGet(IppsBigNumState*
pP
, IppsBigNumState*
pQ
, IppsBigNumState*
pG
, IppsDLPState*
pCtx
);
Include Files
ippcp.h
Parameters
pP
Pointer to the characteristic
p
of the prime finite field GF(
p
).
pQ
Pointer to the characteristic
q
of the multiplicative subgroup GF(
q
).
pG
Pointer to the generator
G
of the multiplicative subgroup GF(
r
).
pCtx
Pointer to the cryptosystem context.
Description
The function retrieves DL-based cryptosystem domain parameters into the cryptosystem context.
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
pP
,
pR
, and
pG
is too small for the DL parameter.

Product and Performance Information

1

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