Cryptography for Intel® Integrated Performance Primitives Developer Reference

Developer Reference

Contents

General Definition of a Hash Function

Syntax

typedef IppStatus(_STDCALL *IppHASH)(const Ipp8u*
pMsg
, int
msgLen
, Ipp8u*
pMD
);

Parameters

pMsg
Pointer to the input octet string.
msgLen
Length of the input string in octers.
pMD
Pointer to the output message digest.

Description

This declaration is included in the
ippcp.h
 file. The function calculates the digest of a non-streaming message using the implemented hash algorithm.
Definition of a hash function used in Intel IPP limits length (in octets) of an input message for any specific hash function by the range of the
int
 data type, with the upper bound of 2
32
-1.

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