Cryptography for Intel® Integrated Performance Primitives Developer Reference

Developer Reference

Contents

ECCPGetSizeStd

Gets the size of the
IppsECCPState
 context for a standard elliptic curve.

Syntax

IppStatus ippsECCPGetSizeStd128r1(
int*
pSize
);
IppStatus ippsECCPGetSizeStd128r2(
int*
pSize
);
IppStatus ippsECCPGetSizeStd192r1(
int*
pSize
);
IppStatus ippsECCPGetSizeStd224r1(
int*
pSize
);
IppStatus ippsECCPGetSizeStd256r1(
int*
pSize
);
IppStatus ippsECCPGetSizeStd384r1(
int*
pSize
);
IppStatus ippsECCPGetSizeStd521r1(
int*
pSize
);
IppStatus ippsECCPGetSizeStdSM2(
int*
pSize
);
Include Files
ippcp.h
Parameters
pSize
Pointer to the size (in bytes) of the
IppsECCPState
 context for a standard elliptic curve.
Description
Each of these functions computes the size of the context in bytes for the elliptic curve cryptosystem based on a specific standard elliptic curve. For a list of these curves, see table Standard Elliptic Curves.
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
.

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