sp800_108_hmacsha256.c

Go to the documentation of this file.

//
// sp800_108_hmacsha256.c
//
// Copyright (c) Microsoft Corporation. Licensed under the MIT license.
//
 
#include "precomp.h"
 
//
// The SP800-108 SHA-256 test
// This is in a separate module to avoid pulling in SHA-256 whenever we use SP800_108
//
 
static const BYTE    sp800_108_sha256Answer[] =
{
    0x00, 0x26, 0x4b, 0xbb, 0x14, 0x97, 0x40, 0x54,
};
 
VOID
SYMCRYPT_CALL
SymCryptSp800_108_HmacSha256SelfTest(void)
{
    BYTE    res[sizeof(sp800_108_sha256Answer)];
 
    SymCryptSp800_108(
        SymCryptHmacSha256Algorithm,
        &SymCryptTestKey32[0], 8,       // key
        (PCBYTE)"Label", 5,             // label
        &SymCryptTestKey32[16], 16,     // context
        res,
        sizeof(res));
 
    SymCryptInjectError( res, sizeof( res ) );
 
    if (memcmp(res, sp800_108_sha256Answer, sizeof(res)) !=0)
    {
        SymCryptFatal('8108');
    }
}