/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * 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 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 acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS 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 AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * 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,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <openssl/rand.h>
#include <openssl/fips_rand.h>
#include <openssl/err.h>
#include <openssl/bn.h>

#include "e_os.h"

#ifndef OPENSSL_FIPS
int main(int argc, char *argv[])
{
    printf("No FIPS RAND support\n");
    return (0);
}

#else

# include "fips_utl.h"

typedef struct {
    unsigned char DT[16];
    unsigned char V[16];
    unsigned char R[16];
} AES_PRNG_MCT;

static unsigned char aes_128_mct_key[16] =
    { 0x9f, 0x5b, 0x51, 0x20, 0x0b, 0xf3, 0x34, 0xb5,
    0xd8, 0x2b, 0xe8, 0xc3, 0x72, 0x55, 0xc8, 0x48
};

static AES_PRNG_MCT aes_128_mct_tv = {
    /* DT */
    {0x63, 0x76, 0xbb, 0xe5, 0x29, 0x02, 0xba, 0x3b,
     0x67, 0xc9, 0x25, 0xfa, 0x70, 0x1f, 0x11, 0xac},
    /* V */
    {0x57, 0x2c, 0x8e, 0x76, 0x87, 0x26, 0x47, 0x97,
     0x7e, 0x74, 0xfb, 0xdd, 0xc4, 0x95, 0x01, 0xd1},
    /* R */
    {0x48, 0xe9, 0xbd, 0x0d, 0x06, 0xee, 0x18, 0xfb,
     0xe4, 0x57, 0x90, 0xd5, 0xc3, 0xfc, 0x9b, 0x73}
};

static unsigned char aes_192_mct_key[24] =
    { 0xb7, 0x6c, 0x34, 0xd1, 0x09, 0x67, 0xab, 0x73,
    0x4d, 0x5a, 0xd5, 0x34, 0x98, 0x16, 0x0b, 0x91,
    0xbc, 0x35, 0x51, 0x16, 0x6b, 0xae, 0x93, 0x8a
};

static AES_PRNG_MCT aes_192_mct_tv = {
    /* DT */
    {0x84, 0xce, 0x22, 0x7d, 0x91, 0x5a, 0xa3, 0xc9,
     0x84, 0x3c, 0x0a, 0xb3, 0xa9, 0x63, 0x15, 0x52},
    /* V */
    {0xb6, 0xaf, 0xe6, 0x8f, 0x99, 0x9e, 0x90, 0x64,
     0xdd, 0xc7, 0x7a, 0xc1, 0xbb, 0x90, 0x3a, 0x6d},
    /* R */
    {0xfc, 0x85, 0x60, 0x9a, 0x29, 0x6f, 0xef, 0x21,
     0xdd, 0x86, 0x20, 0x32, 0x8a, 0x29, 0x6f, 0x47}
};

static unsigned char aes_256_mct_key[32] =
    { 0x9b, 0x05, 0xc8, 0x68, 0xff, 0x47, 0xf8, 0x3a,
    0xa6, 0x3a, 0xa8, 0xcb, 0x4e, 0x71, 0xb2, 0xe0,
    0xb8, 0x7e, 0xf1, 0x37, 0xb6, 0xb4, 0xf6, 0x6d,
    0x86, 0x32, 0xfc, 0x1f, 0x5e, 0x1d, 0x1e, 0x50
};

static AES_PRNG_MCT aes_256_mct_tv = {
    /* DT */
    {0x31, 0x6e, 0x35, 0x9a, 0xb1, 0x44, 0xf0, 0xee,
     0x62, 0x6d, 0x04, 0x46, 0xe0, 0xa3, 0x92, 0x4c},
    /* V */
    {0x4f, 0xcd, 0xc1, 0x87, 0x82, 0x1f, 0x4d, 0xa1,
     0x3e, 0x0e, 0x56, 0x44, 0x59, 0xe8, 0x83, 0xca},
    /* R */
    {0xc8, 0x87, 0xc2, 0x61, 0x5b, 0xd0, 0xb9, 0xe1,
     0xe7, 0xf3, 0x8b, 0xd7, 0x5b, 0xd5, 0xf1, 0x8d}
};

static void dump(const unsigned char *b, int n)
{
    while (n-- > 0) {
        printf(" %02x", *b++);
    }
}

static void compare(const unsigned char *result,
                    const unsigned char *expected, int n)
{
    int i;

    for (i = 0; i < n; ++i)
        if (result[i] != expected[i]) {
            puts("Random test failed, got:");
            dump(result, n);
            puts("\n               expected:");
            dump(expected, n);
            putchar('\n');
            EXIT(1);
        }
}

static void run_test(unsigned char *key, int keylen, AES_PRNG_MCT * tv)
{
    unsigned char buf[16], dt[16];
    int i, j;
    FIPS_rand_reset();
    FIPS_rand_test_mode();
    FIPS_rand_set_key(key, keylen);
    FIPS_rand_seed(tv->V, 16);
    memcpy(dt, tv->DT, 16);
    for (i = 0; i < 10000; i++) {
        FIPS_rand_set_dt(dt);
        FIPS_rand_bytes(buf, 16);
        /* Increment DT */
        for (j = 15; j >= 0; j--) {
            dt[j]++;
            if (dt[j])
                break;
        }
    }

    compare(buf, tv->R, 16);
}

int main()
{
    run_test(aes_128_mct_key, 16, &aes_128_mct_tv);
    printf("FIPS PRNG test 1 done\n");
    run_test(aes_192_mct_key, 24, &aes_192_mct_tv);
    printf("FIPS PRNG test 2 done\n");
    run_test(aes_256_mct_key, 32, &aes_256_mct_tv);
    printf("FIPS PRNG test 3 done\n");
    return 0;
}

#endif
