Developer Reference

Contents

GFpECScratchBufferSize

Gets the size of the scratch buffer.

Syntax

IppStatus ippsGFpECScratchBufferSize(int
nScalars
, const IppsGFpECState*
pEC
, int*
pBufferSize
);
Include Files
ippcp.h
Parameters
nScalars
Number of scalar values. This may take the following values:
  • Number of scalar values used in the multiplication operation.
  • 1 if it is not applicable.
pEC
Pointer to the context of the elliptic curve.
pBufferSize
Pointer to the calculated buffer size in bytes.
Description
This function computes the size of the scratch buffer for functions that require an external scratch buffer.
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
IppsGFpECState
context parameter does not match the operation.
ippStsBadArgErr
Indicates an error condition if
nScalars
<= 0 or
nScalars
> 6

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804