/* crypto/des/ecb_enc.c */

/* 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.]

 */

#include "des_locl.h"

#include "des_ver.h"

#include <openssl/opensslv.h>

#include <openssl/bio.h>

OPENSSL_GLOBAL const char libdes_version[] = "libdes" OPENSSL_VERSION_PTEXT;

OPENSSL_GLOBAL const char DES_version[] = "DES" OPENSSL_VERSION_PTEXT;

const char *DES_options(void)

{

    static int init = 1;

    static char buf[32];

    if (init) {

        const char *ptr, *unroll, *risc, *size;

#ifdef DES_PTR

        ptr = "ptr";

#else

        ptr = "idx";

#endif

#if defined(DES_RISC1) || defined(DES_RISC2)

# ifdef DES_RISC1

        risc = "risc1";

# endif

# ifdef DES_RISC2

        risc = "risc2";

# endif

#else

        risc = "cisc";

#endif

#ifdef DES_UNROLL

        unroll = "16";

#else

        unroll = "2";

#endif

        if (sizeof(DES_LONG) != sizeof(long))

            size = "int";

        else

            size = "long";

        BIO_snprintf(buf, sizeof buf, "des(%s,%s,%s,%s)", ptr, risc, unroll,

                     size);

        init = 0;

    }

    return (buf);

}

void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output,

                     DES_key_schedule *ks, int enc)

{

    register DES_LONG l;

    DES_LONG ll[2];

    const unsigned char *in = &(*input)[0];

    unsigned char *out = &(*output)[0];

    c2l(in, l);

    ll[0] = l;

    c2l(in, l);

    ll[1] = l;

    DES_encrypt1(ll, ks, enc);

    l = ll[0];

    l2c(l, out);

    l = ll[1];

    l2c(l, out);

    l = ll[0] = ll[1] = 0;

}