/* 
   Unix SMB/CIFS implementation.
   HMAC SHA-1 tests
   Copyright (C) Stefan Metzmacher
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "lib/crypto/crypto.h"

struct torture_context;

static DATA_BLOB data_blob_repeat_byte(uint8_t byte, size_t length)
{
	DATA_BLOB b = data_blob(NULL, length);
	memset(b.data, byte, length);
	return b;
}

/*
 This uses the test values from rfc2202
*/
BOOL torture_local_crypto_hmacsha1(struct torture_context *torture) 
{
	BOOL ret = True;
	uint32_t i;
	struct {
		DATA_BLOB key;
		DATA_BLOB data;
		DATA_BLOB sha1;
	} testarray[] = {
	{
		.key	= data_blob_repeat_byte(0x0b, 20),
		.data	= data_blob_string_const("Hi There"),
		.sha1	= strhex_to_data_blob("b617318655057264e28bc0b6fb378c8ef146be00")
	},{
		.key	= data_blob_string_const("Jefe"),
		.data	= data_blob_string_const("what do ya want for nothing?"),
		.sha1	= strhex_to_data_blob("effcdf6ae5eb2fa2d27416d5f184df9c259a7c79")
	},{
		.key	= data_blob_repeat_byte(0xaa, 20),
		.data	= data_blob_repeat_byte(0xdd, 50),
		.sha1	= strhex_to_data_blob("125d7342b9ac11cd91a39af48aa17b4f63f175d3")
	},{
		.key	= strhex_to_data_blob("0102030405060708090a0b0c0d0e0f10111213141516171819"),
		.data	= data_blob_repeat_byte(0xcd, 50),
		.sha1	= strhex_to_data_blob("4c9007f4026250c6bc8414f9bf50c86c2d7235da")
	},{
		.key	= data_blob_repeat_byte(0x0c, 20),
		.data	= data_blob_string_const("Test With Truncation"),
		.sha1	= strhex_to_data_blob("4c1a03424b55e07fe7f27be1d58bb9324a9a5a04")
		/* sha1-96 =                 0x4c1a03424b55e07fe7f27be1 */
	},{
		.key	= data_blob_repeat_byte(0xaa, 80),
		.data	= data_blob_string_const("Test Using Larger Than Block-Size Key - Hash Key First"),
		.sha1	= strhex_to_data_blob("aa4ae5e15272d00e95705637ce8a3b55ed402112")
	},{
		.key	= data_blob_repeat_byte(0xaa, 80),
		.data	= data_blob_string_const("Test Using Larger Than Block-Size Key "
						 "and Larger Than One Block-Size Data"),
		.sha1	= strhex_to_data_blob("e8e99d0f45237d786d6bbaa7965c7808bbff1a91")
	}
	};

	for (i=0; i < ARRAY_SIZE(testarray); i++) {
		struct HMACSHA1Context ctx;
		uint8_t sha1[SHA1HashSize];
		int e;

		hmac_sha1_init(testarray[i].key.data, testarray[i].key.length, &ctx);
		hmac_sha1_update(testarray[i].data.data, testarray[i].data.length, &ctx);
		hmac_sha1_final(sha1, &ctx);

		e = memcmp(testarray[i].sha1.data,
			   sha1,
			   MIN(testarray[i].sha1.length, sizeof(sha1)));
		if (e != 0) {
			printf("hmacsha1 test[%u]: failed\n", i);
			dump_data(0, testarray[i].key.data, testarray[i].key.length);
			dump_data(0, testarray[i].data.data, testarray[i].data.length);
			dump_data(0, testarray[i].sha1.data, testarray[i].sha1.length);
			dump_data(0, sha1, sizeof(sha1));
			ret = False;
		}
	}

	return ret;
}