266 lines
11 KiB
C
266 lines
11 KiB
C
/* crypto/des/des.h */
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/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#ifndef HEADER_DES_H
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#define HEADER_DES_H
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#ifdef NO_DES
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#error DES is disabled.
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#endif
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#ifdef _KERBEROS_DES_H
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#error <openssl/des.h> replaces <kerberos/des.h>.
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#endif
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#include <openssl/opensslconf.h> /* DES_LONG */
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#include <openssl/e_os2.h> /* OPENSSL_EXTERN */
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef unsigned char des_cblock[8];
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typedef /* const */ unsigned char const_des_cblock[8];
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/* With "const", gcc 2.8.1 on Solaris thinks that des_cblock *
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* and const_des_cblock * are incompatible pointer types. */
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typedef struct des_ks_struct
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{
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union {
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des_cblock cblock;
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/* make sure things are correct size on machines with
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* 8 byte longs */
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DES_LONG deslong[2];
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} ks;
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int weak_key;
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} des_key_schedule[16];
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#define DES_KEY_SZ (sizeof(des_cblock))
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#define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
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#define DES_ENCRYPT 1
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#define DES_DECRYPT 0
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#define DES_CBC_MODE 0
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#define DES_PCBC_MODE 1
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#define des_ecb2_encrypt(i,o,k1,k2,e) \
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des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
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#define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
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des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
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#define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
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des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
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#define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
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des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
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OPENSSL_EXTERN int des_check_key; /* defaults to false */
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OPENSSL_EXTERN int des_rw_mode; /* defaults to DES_PCBC_MODE */
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OPENSSL_EXTERN int des_set_weak_key_flag; /* set the weak key flag */
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const char *des_options(void);
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void des_ecb3_encrypt(const_des_cblock *input, des_cblock *output,
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des_key_schedule ks1,des_key_schedule ks2,
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des_key_schedule ks3, int enc);
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DES_LONG des_cbc_cksum(const unsigned char *input,des_cblock *output,
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long length,des_key_schedule schedule,
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const_des_cblock *ivec);
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/* des_cbc_encrypt does not update the IV! Use des_ncbc_encrypt instead. */
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void des_cbc_encrypt(const unsigned char *input,unsigned char *output,
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long length,des_key_schedule schedule,des_cblock *ivec,
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int enc);
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void des_ncbc_encrypt(const unsigned char *input,unsigned char *output,
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long length,des_key_schedule schedule,des_cblock *ivec,
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int enc);
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void des_xcbc_encrypt(const unsigned char *input,unsigned char *output,
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long length,des_key_schedule schedule,des_cblock *ivec,
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const_des_cblock *inw,const_des_cblock *outw,int enc);
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void des_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits,
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long length,des_key_schedule schedule,des_cblock *ivec,
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int enc);
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void des_ecb_encrypt(const_des_cblock *input,des_cblock *output,
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des_key_schedule ks,int enc);
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/* This is the DES encryption function that gets called by just about
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every other DES routine in the library. You should not use this
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function except to implement 'modes' of DES. I say this because the
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functions that call this routine do the conversion from 'char *' to
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long, and this needs to be done to make sure 'non-aligned' memory
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access do not occur. The characters are loaded 'little endian'.
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Data is a pointer to 2 unsigned long's and ks is the
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des_key_schedule to use. enc, is non zero specifies encryption,
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zero if decryption. */
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void des_encrypt1(DES_LONG *data,des_key_schedule ks, int enc);
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/* This functions is the same as des_encrypt1() except that the DES
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initial permutation (IP) and final permutation (FP) have been left
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out. As for des_encrypt1(), you should not use this function.
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It is used by the routines in the library that implement triple DES.
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IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same
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as des_encrypt1() des_encrypt1() des_encrypt1() except faster :-). */
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void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
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void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
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des_key_schedule ks2, des_key_schedule ks3);
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void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
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des_key_schedule ks2, des_key_schedule ks3);
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void des_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output,
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long length,
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des_key_schedule ks1,des_key_schedule ks2,
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des_key_schedule ks3,des_cblock *ivec,int enc);
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void des_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out,
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long length,
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des_key_schedule ks1,des_key_schedule ks2,
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des_key_schedule ks3,
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des_cblock *ivec1,des_cblock *ivec2,
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int enc);
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void des_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out,
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long length,des_key_schedule ks1,
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des_key_schedule ks2,des_key_schedule ks3,
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des_cblock *ivec,int *num,int enc);
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void des_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out,
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long length,des_key_schedule ks1,
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des_key_schedule ks2,des_key_schedule ks3,
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des_cblock *ivec,int *num);
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void des_xwhite_in2out(const_des_cblock *des_key,const_des_cblock *in_white,
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des_cblock *out_white);
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int des_enc_read(int fd,void *buf,int len,des_key_schedule sched,
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des_cblock *iv);
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int des_enc_write(int fd,const void *buf,int len,des_key_schedule sched,
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des_cblock *iv);
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char *des_fcrypt(const char *buf,const char *salt, char *ret);
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char *des_crypt(const char *buf,const char *salt);
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#if !defined(PERL5) && !defined(__FreeBSD__) && !defined(NeXT) && !defined(_UWIN)
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char *crypt(const char *buf,const char *salt);
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#endif
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void des_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits,
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long length,des_key_schedule schedule,des_cblock *ivec);
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void des_pcbc_encrypt(const unsigned char *input,unsigned char *output,
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long length,des_key_schedule schedule,des_cblock *ivec,
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int enc);
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DES_LONG des_quad_cksum(const unsigned char *input,des_cblock output[],
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long length,int out_count,des_cblock *seed);
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void des_random_seed(des_cblock *key);
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int des_random_key(des_cblock *ret);
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int des_read_password(des_cblock *key,const char *prompt,int verify);
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int des_read_2passwords(des_cblock *key1,des_cblock *key2,
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const char *prompt,int verify);
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int des_read_pw_string(char *buf,int length,const char *prompt,int verify);
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void des_set_odd_parity(des_cblock *key);
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int des_check_key_parity(const_des_cblock *key);
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int des_is_weak_key(const_des_cblock *key);
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/* des_set_key (= set_key = des_key_sched = key_sched) calls
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* des_set_key_checked if global variable des_check_key is set,
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* des_set_key_unchecked otherwise. */
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int des_set_key(const_des_cblock *key,des_key_schedule schedule);
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int des_key_sched(const_des_cblock *key,des_key_schedule schedule);
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int des_set_key_checked(const_des_cblock *key,des_key_schedule schedule);
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void des_set_key_unchecked(const_des_cblock *key,des_key_schedule schedule);
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void des_string_to_key(const char *str,des_cblock *key);
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void des_string_to_2keys(const char *str,des_cblock *key1,des_cblock *key2);
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void des_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length,
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des_key_schedule schedule,des_cblock *ivec,int *num,
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int enc);
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void des_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length,
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des_key_schedule schedule,des_cblock *ivec,int *num);
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int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify);
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/* The following definitions provide compatibility with the MIT Kerberos
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* library. The des_key_schedule structure is not binary compatible. */
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#define _KERBEROS_DES_H
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#define KRBDES_ENCRYPT DES_ENCRYPT
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#define KRBDES_DECRYPT DES_DECRYPT
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#ifdef KERBEROS
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# define ENCRYPT DES_ENCRYPT
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# define DECRYPT DES_DECRYPT
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#endif
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#ifndef NCOMPAT
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# define C_Block des_cblock
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# define Key_schedule des_key_schedule
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# define KEY_SZ DES_KEY_SZ
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# define string_to_key des_string_to_key
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# define read_pw_string des_read_pw_string
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# define random_key des_random_key
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# define pcbc_encrypt des_pcbc_encrypt
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# define set_key des_set_key
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# define key_sched des_key_sched
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# define ecb_encrypt des_ecb_encrypt
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# define cbc_encrypt des_cbc_encrypt
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# define ncbc_encrypt des_ncbc_encrypt
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# define xcbc_encrypt des_xcbc_encrypt
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# define cbc_cksum des_cbc_cksum
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# define quad_cksum des_quad_cksum
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# define check_parity des_check_key_parity
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#endif
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typedef des_key_schedule bit_64;
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#define des_fixup_key_parity des_set_odd_parity
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#ifdef __cplusplus
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}
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#endif
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#endif
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