Annotation of truecrypt/crypto/des.h, revision 1.1.1.6

1.1.1.4   root        1: /* Deprecated/legacy */
                      2: 
1.1       root        3: /* crypto/des/des.org */
                      4: /* Copyright (C) 1995-1997 Eric Young ([email protected])
                      5:  * All rights reserved.
                      6:  *
                      7:  * This package is an SSL implementation written
                      8:  * by Eric Young ([email protected]).
                      9:  * The implementation was written so as to conform with Netscapes SSL.
                     10:  * 
                     11:  * This library is free for commercial and non-commercial use as long as
                     12:  * the following conditions are aheared to.  The following conditions
                     13:  * apply to all code found in this distribution, be it the RC4, RSA,
                     14:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
                     15:  * included with this distribution is covered by the same copyright terms
                     16:  * except that the holder is Tim Hudson ([email protected]).
                     17:  * 
                     18:  * Copyright remains Eric Young's, and as such any Copyright notices in
                     19:  * the code are not to be removed.
                     20:  * If this package is used in a product, Eric Young should be given attribution
                     21:  * as the author of the parts of the library used.
                     22:  * This can be in the form of a textual message at program startup or
                     23:  * in documentation (online or textual) provided with the package.
                     24:  * 
                     25:  * Redistribution and use in source and binary forms, with or without
                     26:  * modification, are permitted provided that the following conditions
                     27:  * are met:
                     28:  * 1. Redistributions of source code must retain the copyright
                     29:  *    notice, this list of conditions and the following disclaimer.
                     30:  * 2. Redistributions in binary form must reproduce the above copyright
                     31:  *    notice, this list of conditions and the following disclaimer in the
                     32:  *    documentation and/or other materials provided with the distribution.
                     33:  * 3. All advertising materials mentioning features or use of this software
                     34:  *    must display the following acknowledgement:
                     35:  *    "This product includes cryptographic software written by
                     36:  *     Eric Young ([email protected])"
                     37:  *    The word 'cryptographic' can be left out if the rouines from the library
                     38:  *    being used are not cryptographic related :-).
                     39:  * 4. If you include any Windows specific code (or a derivative thereof) from 
                     40:  *    the apps directory (application code) you must include an acknowledgement:
                     41:  *    "This product includes software written by Tim Hudson ([email protected])"
                     42:  * 
                     43:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
                     44:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     45:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     46:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     47:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     48:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     49:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     50:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     51:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     52:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     53:  * SUCH DAMAGE.
                     54:  * 
                     55:  * The licence and distribution terms for any publically available version or
                     56:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
                     57:  * copied and put under another distribution licence
                     58:  * [including the GNU Public Licence.]
                     59:  */
                     60: 
                     61: /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 
                     62:  *
                     63:  * Always modify des.org since des.h is automatically generated from
                     64:  * it during SSLeay configuration.
                     65:  *
                     66:  * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
                     67:  */
                     68: 
                     69: #ifndef HEADER_DES_H
                     70: #define HEADER_DES_H
                     71: 
                     72: #ifdef  __cplusplus
                     73: extern "C" {
                     74: #endif
                     75: 
                     76: #include <stdio.h>
                     77: 
                     78: /* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
                     79:  * %20 speed up (longs are 8 bytes, int's are 4). */
                     80: #ifndef DES_LONG
1.1.1.2   root       81: #define DES_LONG unsigned __int32
1.1       root       82: #endif
                     83: 
                     84: typedef unsigned char des_cblock[8];
                     85: typedef struct des_ks_struct
                     86:        {
                     87:        union   {
                     88:                des_cblock _;
                     89:                /* make sure things are correct size on machines with
                     90:                 * 8 byte longs */
                     91:                DES_LONG pad[2];
                     92:                } ks;
                     93:        } des_key_schedule[16];
                     94: 
                     95: #define DES_KEY_SZ     (sizeof(des_cblock))
                     96: #define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
                     97: 
                     98: #define DES_ENCRYPT    1
                     99: #define DES_DECRYPT    0
                    100: 
                    101: #define DES_CBC_MODE   0
                    102: #define DES_PCBC_MODE  1
                    103: 
                    104: #define des_ecb2_encrypt(i,o,k1,k2,e) \
                    105:        des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
                    106: 
                    107: #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
                    108:        des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
                    109: 
                    110: #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
                    111:        des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
                    112: 
                    113: #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
                    114:        des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
                    115: 
                    116: #define C_Block des_cblock
                    117: #define Key_schedule des_key_schedule
                    118: #ifdef KERBEROS
                    119: #define ENCRYPT DES_ENCRYPT
                    120: #define DECRYPT DES_DECRYPT
                    121: #endif
                    122: #define KEY_SZ DES_KEY_SZ
                    123: #define string_to_key des_string_to_key
                    124: #define read_pw_string des_read_pw_string
                    125: #define random_key des_random_key
                    126: #define pcbc_encrypt des_pcbc_encrypt
                    127: #define set_key des_set_key
                    128: #define key_sched des_key_sched
                    129: #define ecb_encrypt des_ecb_encrypt
                    130: #define cbc_encrypt des_cbc_encrypt
                    131: #define ncbc_encrypt des_ncbc_encrypt
                    132: #define xcbc_encrypt des_xcbc_encrypt
                    133: #define cbc_cksum des_cbc_cksum
                    134: #define quad_cksum des_quad_cksum
                    135: 
                    136: /* For compatibility with the MIT lib - eay 20/05/92 */
                    137: typedef des_key_schedule bit_64;
                    138: #define des_fixup_key_parity des_set_odd_parity
                    139: #define des_check_key_parity check_parity
                    140: 
                    141: extern int des_check_key;      /* defaults to false */
                    142: extern int des_rw_mode;                /* defaults to DES_PCBC_MODE */
                    143: 
                    144: /* The next line is used to disable full ANSI prototypes, if your
                    145:  * compiler has problems with the prototypes, make sure this line always
                    146:  * evaluates to true :-) */
                    147: #if defined(MSDOS) || defined(__STDC__)
                    148: #undef NOPROTO
                    149: #endif
                    150: #ifndef NOPROTO
                    151: char *des_options(void);
1.1.1.3   root      152: void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
1.1       root      153:        des_key_schedule ks1,des_key_schedule ks2,
                    154:        des_key_schedule ks3, int enc);
                    155: DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
                    156:        long length,des_key_schedule schedule,des_cblock *ivec);
                    157: void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
                    158:        des_key_schedule schedule,des_cblock *ivec,int enc);
                    159: void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
                    160:        des_key_schedule schedule,des_cblock *ivec,int enc);
                    161: void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
                    162:        des_key_schedule schedule,des_cblock *ivec,
                    163:        des_cblock *inw,des_cblock *outw,int enc);
                    164: void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
                    165:        long length,des_key_schedule schedule,des_cblock *ivec,int enc);
                    166: void des_ecb_encrypt(des_cblock *input,des_cblock *output,
                    167:        des_key_schedule ks,int enc);
1.1.1.3   root      168: void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
                    169: void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
                    170: void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
1.1       root      171:        des_key_schedule ks2, des_key_schedule ks3);
1.1.1.3   root      172: void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
1.1       root      173:        des_key_schedule ks2, des_key_schedule ks3);
                    174: void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output, 
                    175:        long length, des_key_schedule ks1, des_key_schedule ks2, 
                    176:        des_key_schedule ks3, des_cblock *ivec, int enc);
                    177: void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
                    178:        long length, des_key_schedule ks1, des_key_schedule ks2,
                    179:        des_key_schedule ks3, des_cblock *ivec, int *num, int enc);
                    180: void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
                    181:        long length, des_key_schedule ks1, des_key_schedule ks2,
                    182:        des_key_schedule ks3, des_cblock *ivec, int *num);
                    183: 
                    184: void des_xwhite_in2out(des_cblock (*des_key), des_cblock (*in_white),
                    185:        des_cblock (*out_white));
                    186: 
                    187: int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
                    188:        des_cblock *iv);
                    189: int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
                    190:        des_cblock *iv);
                    191: char *des_fcrypt(const char *buf,const char *salt, char *ret);
                    192: char *des_crypt(const char *buf,const char *salt);
                    193: void des_ofb_encrypt(unsigned char *in,unsigned char *out,
                    194:        int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
                    195: void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
                    196:        des_key_schedule schedule,des_cblock *ivec,int enc);
                    197: DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
                    198:        long length,int out_count,des_cblock *seed);
                    199: void des_random_seed(des_cblock key);
                    200: void des_random_key(des_cblock ret);
                    201: int des_read_password(des_cblock *key,char *prompt,int verify);
                    202: int des_read_2passwords(des_cblock *key1,des_cblock *key2,
                    203:        char *prompt,int verify);
                    204: int des_read_pw_string(char *buf,int length,char *prompt,int verify);
                    205: void des_set_odd_parity(des_cblock *key);
                    206: int des_is_weak_key(des_cblock *key);
                    207: int des_set_key(des_cblock *key,des_key_schedule schedule);
1.1.1.3   root      208: int des_key_sched(des_cblock *key,des_key_schedule schedule);
1.1       root      209: void des_string_to_key(char *str,des_cblock *key);
                    210: void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
                    211: void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
                    212:        des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
                    213: void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
                    214:        des_key_schedule schedule, des_cblock *ivec, int *num);
                    215: int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify);
                    216: 
                    217: /* Extra functions from Mark Murray <[email protected]> */
                    218: void des_cblock_print_file(des_cblock *cb, FILE *fp);
                    219: /* The following functions are not in the normal unix build or the
                    220:  * SSLeay build.  When using the SSLeay build, use RAND_seed()
                    221:  * and RAND_bytes() instead. */
                    222: int des_new_random_key(des_cblock *key);
                    223: void des_init_random_number_generator(des_cblock *key);
                    224: void des_set_random_generator_seed(des_cblock *key);
                    225: void des_set_sequence_number(des_cblock new_sequence_number);
                    226: void des_generate_random_block(des_cblock *block);
                    227: 
                    228: #else
                    229: 
                    230: char *des_options();
                    231: void des_ecb3_encrypt();
                    232: DES_LONG des_cbc_cksum();
                    233: void des_cbc_encrypt();
                    234: void des_ncbc_encrypt();
                    235: void des_xcbc_encrypt();
                    236: void des_cfb_encrypt();
                    237: void des_ede3_cfb64_encrypt();
                    238: void des_ede3_ofb64_encrypt();
                    239: void des_ecb_encrypt();
1.1.1.3   root      240: void des_encrypt();
                    241: void des_encrypt2();
                    242: void des_encrypt3();
                    243: void des_decrypt3();
1.1       root      244: void des_ede3_cbc_encrypt();
                    245: int des_enc_read();
                    246: int des_enc_write();
                    247: char *des_fcrypt();
                    248: #ifdef PERL5
                    249: char *des_crypt();
                    250: #else
                    251: char *crypt();
                    252: #endif
                    253: void des_ofb_encrypt();
                    254: void des_pcbc_encrypt();
                    255: DES_LONG des_quad_cksum();
                    256: void des_random_seed();
                    257: void des_random_key();
                    258: int des_read_password();
                    259: int des_read_2passwords();
                    260: int des_read_pw_string();
                    261: void des_set_odd_parity();
                    262: int des_is_weak_key();
                    263: int des_set_key();
                    264: int des_key_sched();
                    265: void des_string_to_key();
                    266: void des_string_to_2keys();
                    267: void des_cfb64_encrypt();
                    268: void des_ofb64_encrypt();
                    269: int des_read_pw();
                    270: void des_xwhite_in2out();
                    271: 
                    272: /* Extra functions from Mark Murray <[email protected]> */
                    273: void des_cblock_print_file();
                    274: /* The following functions are not in the normal unix build or the
                    275:  * SSLeay build.  When using the SSLeay build, use RAND_seed()
                    276:  * and RAND_bytes() instead. */
                    277: #ifdef FreeBSD
                    278: int des_new_random_key();
                    279: void des_init_random_number_generator();
                    280: void des_set_random_generator_seed();
                    281: void des_set_sequence_number();
                    282: void des_generate_random_block();
                    283: #endif
                    284: 
                    285: #endif
                    286: 
                    287: #ifdef  __cplusplus
                    288: }
                    289: #endif
                    290: 
                    291: #endif

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