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

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804