Cryptography for Intel® Integrated Performance Primitives Developer Reference

Developer Reference

Contents

DLPGetSize

Gets the size of the
IppsDLPState
 context.

Syntax

IppStatus ippsDLPGetSize(int
peBits
, int
reBits
, int
*pSize
);
Include Files
ippcp.h
Parameters
peBits
Bitsize of the GF(
p
) element (that is, the length of the DL-based cryptosystem in bits)
reBits
Bitsize of the multiplicative subgroup GF(
r
).
pSize
Pointer to the
IppsDLPState
 context size in bytes.
Description
The function gets the
IppsDLPState
 context size in bytes and stores in
*pSize
. DL-based cryptosystem over GF(
p
) assumes that
r/p
-1 where both
p
 and
r
 are primes.
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
.
ippStsSizeErr
Indicates an error condition if
peBits
≤
reBits
.

Product and Performance Information

1

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