LCOM1920-T02G10

/* crypto/des/des.h */

/* Copyright (C) 1995-1997 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.]

 */

#ifndef HEADER_NEW_DES_H

# define HEADER_NEW_DES_H

# include <openssl/e_os2.h>     /* OPENSSL_EXTERN, OPENSSL_NO_DES, DES_LONG

                                 * (via openssl/opensslconf.h */

#include <sys/types.h>

# ifdef OPENSSL_NO_DES

#  error DES is disabled.

# endif

# ifdef OPENSSL_BUILD_SHLIBCRYPTO

#  undef OPENSSL_EXTERN

#  define OPENSSL_EXTERN OPENSSL_EXPORT

# endif

#ifdef  __cplusplus

extern "C" {

#endif

typedef unsigned char DES_cblock[8];

typedef /* const */ unsigned char const_DES_cblock[8];

/*

 * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and

 * const_DES_cblock * are incompatible pointer types.

 */

typedef struct DES_ks {

    union {

        DES_cblock cblock;

        /*

         * make sure things are correct size on machines with 8 byte longs

         */

        DES_LONG deslong[2];

    } ks[16];

} DES_key_schedule;

#if !defined(__NetBSD__) && !defined(__minix)

# ifndef OPENSSL_DISABLE_OLD_DES_SUPPORT

#  ifndef OPENSSL_ENABLE_OLD_DES_SUPPORT

#   define OPENSSL_ENABLE_OLD_DES_SUPPORT

#  endif

# endif

# ifdef OPENSSL_ENABLE_OLD_DES_SUPPORT

#  include <openssl/des_old.h>

# endif

# define DES_KEY_SZ      (sizeof(DES_cblock))

# define DES_SCHEDULE_SZ (sizeof(DES_key_schedule))

#else

# include <sys/types.h>

# define DES_KEY_SZ    8 /* (sizeof(DES_cblock)) */

# define DES_SCHEDULE_SZ 128 /* (sizeof(DES_key_schedule)) */

# define OPENSSL_DISABLE_OLD_DES_SUPPORT

#endif

# define DES_ENCRYPT     1

# define DES_DECRYPT     0

# define DES_CBC_MODE    0

# define DES_PCBC_MODE   1

# define DES_ecb2_encrypt(i,o,k1,k2,e) \

        DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))

# define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \

        DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))

# define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \

        DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))

# define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \

        DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))

OPENSSL_DECLARE_GLOBAL(int, DES_check_key); /* defaults to false */

# define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key)

OPENSSL_DECLARE_GLOBAL(int, DES_rw_mode); /* defaults to DES_PCBC_MODE */

# define DES_rw_mode OPENSSL_GLOBAL_REF(DES_rw_mode)

const char *DES_options(void);

void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output,

                      DES_key_schedule *ks1, DES_key_schedule *ks2,

                      DES_key_schedule *ks3, int enc);

DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output,

                       long length, DES_key_schedule *schedule,

                       const_DES_cblock *ivec);

/* DES_cbc_encrypt does not update the IV!  Use DES_ncbc_encrypt instead. */

void DES_cbc_encrypt(const unsigned char *input, unsigned char *output,

                     long length, DES_key_schedule *schedule,

                     DES_cblock *ivec, int enc);

void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output,

                      long length, DES_key_schedule *schedule,

                      DES_cblock *ivec, int enc);

void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output,

                      long length, DES_key_schedule *schedule,

                      DES_cblock *ivec, const_DES_cblock *inw,

                      const_DES_cblock *outw, int enc);

void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,

                     long length, DES_key_schedule *schedule,

                     DES_cblock *ivec, int enc);

void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output,

                     DES_key_schedule *ks, int enc);

/*

 * This is the DES encryption function that gets called by just about every

 * other DES routine in the library.  You should not use this function except

 * to implement 'modes' of DES.  I say this because the functions that call

 * this routine do the conversion from 'char *' to long, and this needs to be

 * done to make sure 'non-aligned' memory access do not occur.  The

 * characters are loaded 'little endian'. Data is a pointer to 2 unsigned

 * long's and ks is the DES_key_schedule to use.  enc, is non zero specifies

 * encryption, zero if decryption.

 */

void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc);

/*

 * This functions is the same as DES_encrypt1() except that the DES initial

 * permutation (IP) and final permutation (FP) have been left out.  As for

 * DES_encrypt1(), you should not use this function. It is used by the

 * routines in the library that implement triple DES. IP() DES_encrypt2()

 * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1()

 * DES_encrypt1() DES_encrypt1() except faster :-).

 */

void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc);

void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,

                  DES_key_schedule *ks2, DES_key_schedule *ks3);

void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,

                  DES_key_schedule *ks2, DES_key_schedule *ks3);

void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,

                          long length,

                          DES_key_schedule *ks1, DES_key_schedule *ks2,

                          DES_key_schedule *ks3, DES_cblock *ivec, int enc);

void DES_ede3_cbcm_encrypt(const unsigned char *in, unsigned char *out,

                           long length,

                           DES_key_schedule *ks1, DES_key_schedule *ks2,

                           DES_key_schedule *ks3,

                           DES_cblock *ivec1, DES_cblock *ivec2, int enc);

void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out,

                            long length, DES_key_schedule *ks1,

                            DES_key_schedule *ks2, DES_key_schedule *ks3,

                            DES_cblock *ivec, int *num, int enc);

void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out,

                          int numbits, long length, DES_key_schedule *ks1,

                          DES_key_schedule *ks2, DES_key_schedule *ks3,

                          DES_cblock *ivec, int enc);

void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out,

                            long length, DES_key_schedule *ks1,

                            DES_key_schedule *ks2, DES_key_schedule *ks3,

                            DES_cblock *ivec, int *num);

# if 0

void DES_xwhite_in2out(const_DES_cblock *DES_key, const_DES_cblock *in_white,

                       DES_cblock *out_white);

# endif

int DES_enc_read(int fd, void *buf, int len, DES_key_schedule *sched,

                 DES_cblock *iv);

int DES_enc_write(int fd, const void *buf, int len, DES_key_schedule *sched,

                  DES_cblock *iv);

char *DES_fcrypt(const char *buf, const char *salt, char *ret);

char *DES_crypt(const char *buf, const char *salt);

void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits,

                     long length, DES_key_schedule *schedule,

                     DES_cblock *ivec);

void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,

                      long length, DES_key_schedule *schedule,

                      DES_cblock *ivec, int enc);

DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[],

                        long length, int out_count, DES_cblock *seed);

int DES_random_key(DES_cblock *ret);

void DES_set_odd_parity(DES_cblock *key);

int DES_check_key_parity(const_DES_cblock *key);

int DES_is_weak_key(const_DES_cblock *key);

/*

 * DES_set_key (= set_key = DES_key_sched = key_sched) calls

 * DES_set_key_checked if global variable DES_check_key is set,

 * DES_set_key_unchecked otherwise.

 */

int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule);

int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule);

int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule);

void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule);

# ifdef OPENSSL_FIPS

void private_DES_set_key_unchecked(const_DES_cblock *key,

                                   DES_key_schedule *schedule);

# endif

void DES_string_to_key(const char *str, DES_cblock *key);

void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2);

void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out,

                       long length, DES_key_schedule *schedule,

                       DES_cblock *ivec, int *num, int enc);

void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out,

                       long length, DES_key_schedule *schedule,

                       DES_cblock *ivec, int *num);

int DES_read_password(DES_cblock *key, const char *prompt, int verify);

int DES_read_2passwords(DES_cblock *key1, DES_cblock *key2,

                        const char *prompt, int verify);

# define DES_fixup_key_parity DES_set_odd_parity

#ifdef  __cplusplus

}

#endif

#endif