Developer Reference

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GFpECESGetBufferSize_SM2

Returns sizes of the ECES SM2 buffer components.

Syntax

IppStatus ippsGFpECESGetBufferSize_SM2(int*
pPubKeySize
, int*
pTagSize
, const ippsECES_StateSM2*
pState
);
Include Files
ippcp.h
Parameters
pPubKeySize
Pointer to the size of the public key representation.
pTagSize
Pointer to the maximum size of the authentication tag buffer.
pState
Pointer to the buffer being initialized as the ECES context.
Description
The function returns buffer sizes for the public key and authentication tag representations.
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.