/* ====================================================================
 * Copyright (c) 2003 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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 *
 */

#include <string.h>
#include <openssl/err.h>
#include <openssl/fips.h>
#include <openssl/rand.h>
#include <openssl/fips_rand.h>

#ifdef OPENSSL_FIPS
static struct
    {
    unsigned char key1[8];
    unsigned char key2[8];
    unsigned char seed[8];
    unsigned char dt[8];
    } init_iv[] =
    {
    { 
    { 0x75, 0xc7, 0x1a, 0xe5, 0xa1, 0x1a, 0x23, 0x2c },
    { 0x40, 0x25, 0x6d, 0xcd, 0x94, 0xf7, 0x67, 0xb0 },
    { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
    { 0xc8, 0x9a, 0x1d, 0x88, 0x8e, 0xd1, 0x2f, 0x3c },
    },
    {
    { 0x75, 0xc7, 0x1a, 0xe5, 0xa1, 0x1a, 0x23, 0x2c },
    { 0x40, 0x25, 0x6d, 0xcd, 0x94, 0xf7, 0x67, 0xb0 },
    { 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
    { 0xc8, 0x9a, 0x1d, 0x88, 0x8e, 0xd1, 0x2f, 0x40 },
    },
    {
    { 0x75, 0xc7, 0x1a, 0xe5, 0xa1, 0x1a, 0x23, 0x2c },
    { 0x40, 0x25, 0x6d, 0xcd, 0x94, 0xf7, 0x67, 0xb0 },
    { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
    { 0xc8, 0x9a, 0x1d, 0x88, 0x8e, 0xd1, 0x2f, 0x7b },
    },
    };

static const unsigned char expected_ret[][8]=
    {
    { 0x94, 0x4d, 0xc7, 0x21, 0x0d, 0x6d, 0x7f, 0xd7 },
    { 0x02, 0x43, 0x3c, 0x94, 0x17, 0xa3, 0x32, 0x6f },
    { 0xe7, 0xe2, 0xb2, 0x96, 0x4f, 0x36, 0xed, 0x41 },
    };

void FIPS_corrupt_rng()
    {
    init_iv[0].dt[0]++;
    }

int FIPS_selftest_rng()
    {
    int n;

    for(n=0 ; n < 3 ; ++n)
	{
	unsigned char actual_ret[8];

	FIPS_rand_method()->cleanup();
	FIPS_set_prng_key(init_iv[n].key1,init_iv[n].key2); 
	FIPS_rand_seed(init_iv[n].seed,8);
	FIPS_test_mode(1,init_iv[n].dt);
	if ((FIPS_rand_method()->bytes(actual_ret, 8) <=0) || (memcmp(actual_ret,expected_ret[n],sizeof actual_ret)))
	    {
    	    FIPS_test_mode(0,NULL);
	    FIPSerr(FIPS_F_FIPS_SELFTEST_RNG,FIPS_R_SELFTEST_FAILED);
	    return 0;
	    }
	}
    FIPS_test_mode(0,NULL);
    return 1;
    }

#endif