//

// HmacMd5.c

//

// Copyright (c) Microsoft Corporation. Licensed under the MIT license.

//

#include "precomp.h"

#define ALG MD5

#define Alg Md5

#define SET_DATALENGTH( state, len )    {state.dataLengthL = len;}

#include "hmac_pattern.c"

#undef SET_DATALENGTH

#undef Alg

#undef ALG

const SYMCRYPT_MAC SymCryptHmacMd5Algorithm_default = {

    SymCryptHmacMd5ExpandKey,

    SymCryptHmacMd5Init,

    SymCryptHmacMd5Append,

    SymCryptHmacMd5Result,

    sizeof(SYMCRYPT_HMAC_MD5_EXPANDED_KEY),

    sizeof(SYMCRYPT_HMAC_MD5_STATE),

    SYMCRYPT_HMAC_MD5_RESULT_SIZE,

    &SymCryptMd5Algorithm,

    0,

};

const PCSYMCRYPT_MAC SymCryptHmacMd5Algorithm = &SymCryptHmacMd5Algorithm_default;

static const BYTE hmacMd5Kat[16] = {

    0x77, 0x33, 0x69, 0x79, 0x9e, 0x54, 0xeb, 0x49, 0xff, 0x21, 0xe6, 0xf9, 0x63, 0xe5, 0xbb, 0x49,

};

VOID

SYMCRYPT_CALL

SymCryptHmacMd5Selftest(void)

{

    SYMCRYPT_HMAC_MD5_EXPANDED_KEY xKey;

    BYTE res[SYMCRYPT_HMAC_MD5_RESULT_SIZE];

    SymCryptHmacMd5ExpandKey( &xKey, SymCryptTestKey32, 16 );

    SymCryptHmacMd5( &xKey, SymCryptTestMsg3, sizeof( SymCryptTestMsg3 ), res );

    SymCryptInjectError( res, sizeof( res ) );

    if( memcmp( res, hmacMd5Kat, sizeof( res ) ) != 0 ) 

    {

        SymCryptFatal( 'hmd5');

    }

    //

    // Normally we would wipe the expanded key structure here,

    // but as this is a selftest with known data this is not needed.

    //

}