Cryptography for Intel® Integrated Performance Primitives Developer Reference

Developer Reference

Contents

GFpScratchBufferSize

Gets the size of the scratch buffer.

Syntax

IppStatus ippsGFpScratchBufferSize(int
nExponents
, int
ExpBitSize
, const IppsGFpState*
pGFp
, int*
pBufferSize
);
Include Files
ippcp.h
Parameters
nExponents
Number of exponents.
ExpBitSize
Maximum bit size of the exponents.
pGFp
Pointer to the context of the finite field.
pBufferSize
Pointer to the calculated buffer size in bytes.
Description
This function computes the size of the scratch buffer for the
ippsGFpExp
 and
ippsGFpMultiExp
 functions. The
pGFp
 parameter specifies the context of the finite field.
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
pGFp
 context parameter does not match the operation.
ippStsBadArgErr
Indicates an error condition in the following cases:
  • The number of exponents is zero or negative.
  • The number of exponents is greater than 6.

Product and Performance Information

1

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