Visible to Intel only — GUID: GUID-BC5A7368-7931-4B16-BC0E-CB1A785B5343
Visible to Intel only — GUID: GUID-BC5A7368-7931-4B16-BC0E-CB1A785B5343
GFpMethod
Returns a reference to an implementation of arithmetic operations over GF(q).
Syntax
const IppsGFpMethod* ippsGFpMethod_p192r1(void);
const IppsGFpMethod* ippsGFpMethod_p224r1(void);
const IppsGFpMethod* ippsGFpMethod_p256r1(void);
const IppsGFpMethod* ippsGFpMethod_p384r1(void);
const IppsGFpMethod* ippsGFpMethod_p521r1(void);
const IppsGFpMethod* ippsGFpMethod_p256sm2(void);
const IppsGFpMethod* ippsGFpMethod_pArb(void);
Include Files
ippcp.h
Description
Each of these functions returns a pointer to a structure containing an implementation of arithmetic operations over GF(q).
ippsGFpMethod_pArb() assumes an arbitrary modulus q; each of the rest of the functions returns a pointer to the implementation of arithmetic operations over GF(q) tailored for a particular q. See the table below for the correspondence between method functions and values of the modulus q.
Function |
Value of modulus q |
---|---|
ippsGFpMethod_p192r1() |
q = 2192 - 264 - 1 |
ippsGFpMethod_p224r1() |
q = 2224 - 296 - 1 |
ippsGFpMethod_p256r1() |
q = 2256 - 2224 + 2192 + 296 - 1 |
ippsGFpMethod_p384r1() |
q = 2384 - 2128 - 296 + 232 - 1 |
ippsGFpMethod_p521r1() |
q = 2521 - 1 |
ippsGFpMethod_p256sm2() |
q = 2256 - 2224 - 296 + 264 - 1 |
ippsGFpMethod_pArb() |
Arbitrary modulus q |