Cryptography for Intel(R) Integrated Performance Primitives Developer Reference

ID 768738
Date 12/16/2022
Public
Document Table of Contents

ECCPInit

Initializes the context for the elliptic curve cryptosystem over GF(p).

Syntax

IppStatus ippsECCPInit(int feBitSize, IppsECCPState* pECC);

Include Files

ippcp.h

Parameters

feBitSize

Size (in bits) of the underlying prime number.

pECC

Pointer to the cryptosystem context.
Description

The function initializes the context of the elliptic curve cryptosystem over the prime finite field GF(p).

Context is a structure IppsECCPState designed to store information about the cryptosystem status.

NOTE:

For security reasons, the length of the underlying prime number is restricted to 1 kilobit.

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 the value of the parameter feBitSize is less than 2.

ippStsLengthErr

Indicates an error condition if the value of the feBitsize parameter is less than 2 or greater than 1024.

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