Visible to Intel only — GUID: GUID-B5BE9440-75D3-4B12-B523-D6A82FE90D49
Visible to Intel only — GUID: GUID-B5BE9440-75D3-4B12-B523-D6A82FE90D49
ECCPBindGxyTblStd
Enable the use of base point-based pre-computed tables of standard elliptic curves.
Syntax
IppStatus ippsECCPBindGxyTblStd192r1(IppsECCPState* pEC);
IppStatus ippsECCPBindGxyTblStd224r1(IppsECCPState* pEC);
IppStatus ippsECCPBindGxyTblStd256r1(IppsECCPState* pEC);
IppStatus ippsECCPBindGxyTblStd384r1(IppsECCPState* pEC);
IppStatus ippsECCPBindGxyTblStd521r1(IppsECCPState* pEC);
IppStatus ippsECCPBindGxyTblStdSM2(IppsECCPState* pEC);
Include Files
ippcp.h
Parameters
pEC |
Pointer to the context of the elliptic curve |
Description
The functions ECCPValidate, ECCPGenKeyPair and ECCPVerify perform time-consuming math operations on the elliptic curve base point. In Intel® IPP Cryptography-supported standards, the base point is fixed, and you may use pre-computed values.
The function ECCPBindGxyTbl stores a pointer the to the pre-computed base point data in the elliptic curve context. For performance-critical applications, consider calling ECCPBindGxyTbl at the completion of elliptic curve initialization. The use of ECCPBindGxyTbl improves the performance of ECCPValidate, ECCPGenKeyPair and ECCPVerify up to 2 times.
Important
The set of ECCPBindGxyTbl functions covers only curves defined by the following standards: NIST P-192r1, NIST P-224r1, NIST P-256r1, NIST P-384r1, NIST P521r1, and SM2. Other standard elliptic curves supported in Intel® IPP Cryptography do not have a similar mechanism because they do not match modern security strength requirements.Return Values
ippsStsNoErr |
Indicates no error. Any other message indicates an error or warning. |
ippsStsNullPtrErr |
Indicates an error condition if pEC is NULL. |
ippsStsContextMatchErr |
Indicates an error condition if the elliptic curve context is not valid. |