Developer Reference

Contents

GFpECESStart_SM2

Starts the ECES SM2 encryption or decryption chain.

Syntax

IppStatus ippsGFpECESStart_SM2(IppsECES_StateSM2*
pState
);
Include Files
ippcp.h
Parameters
pState
Pointer to the buffer being initialized as the ECES context.
Description
The function starts a chain of the ippsGFpECESEncrypt_SM2 or ippsGFpECESDecrypt_SM2 function calls. In fact, the functions starts computing the authentication tag as required in [SM2 PKE].
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
IppsECES_StateSM2
context parameter does not match the operation.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.