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Annotation of truecrypt/crypto/des.h, revision 1.1

1.1     ! root        1: /* crypto/des/des.org */
        !             2: /* Copyright (C) 1995-1997 Eric Young ([email protected])
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This package is an SSL implementation written
        !             6:  * by Eric Young ([email protected]).
        !             7:  * The implementation was written so as to conform with Netscapes SSL.
        !             8:  * 
        !             9:  * This library is free for commercial and non-commercial use as long as
        !            10:  * the following conditions are aheared to.  The following conditions
        !            11:  * apply to all code found in this distribution, be it the RC4, RSA,
        !            12:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
        !            13:  * included with this distribution is covered by the same copyright terms
        !            14:  * except that the holder is Tim Hudson ([email protected]).
        !            15:  * 
        !            16:  * Copyright remains Eric Young's, and as such any Copyright notices in
        !            17:  * the code are not to be removed.
        !            18:  * If this package is used in a product, Eric Young should be given attribution
        !            19:  * as the author of the parts of the library used.
        !            20:  * This can be in the form of a textual message at program startup or
        !            21:  * in documentation (online or textual) provided with the package.
        !            22:  * 
        !            23:  * Redistribution and use in source and binary forms, with or without
        !            24:  * modification, are permitted provided that the following conditions
        !            25:  * are met:
        !            26:  * 1. Redistributions of source code must retain the copyright
        !            27:  *    notice, this list of conditions and the following disclaimer.
        !            28:  * 2. Redistributions in binary form must reproduce the above copyright
        !            29:  *    notice, this list of conditions and the following disclaimer in the
        !            30:  *    documentation and/or other materials provided with the distribution.
        !            31:  * 3. All advertising materials mentioning features or use of this software
        !            32:  *    must display the following acknowledgement:
        !            33:  *    "This product includes cryptographic software written by
        !            34:  *     Eric Young ([email protected])"
        !            35:  *    The word 'cryptographic' can be left out if the rouines from the library
        !            36:  *    being used are not cryptographic related :-).
        !            37:  * 4. If you include any Windows specific code (or a derivative thereof) from 
        !            38:  *    the apps directory (application code) you must include an acknowledgement:
        !            39:  *    "This product includes software written by Tim Hudson ([email protected])"
        !            40:  * 
        !            41:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
        !            42:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            43:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            44:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
        !            45:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            46:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            47:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            48:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            49:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            50:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            51:  * SUCH DAMAGE.
        !            52:  * 
        !            53:  * The licence and distribution terms for any publically available version or
        !            54:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
        !            55:  * copied and put under another distribution licence
        !            56:  * [including the GNU Public Licence.]
        !            57:  */
        !            58: 
        !            59: /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 
        !            60:  *
        !            61:  * Always modify des.org since des.h is automatically generated from
        !            62:  * it during SSLeay configuration.
        !            63:  *
        !            64:  * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
        !            65:  */
        !            66: 
        !            67: #ifndef HEADER_DES_H
        !            68: #define HEADER_DES_H
        !            69: 
        !            70: #ifdef  __cplusplus
        !            71: extern "C" {
        !            72: #endif
        !            73: 
        !            74: #include <stdio.h>
        !            75: 
        !            76: /* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
        !            77:  * %20 speed up (longs are 8 bytes, int's are 4). */
        !            78: #ifndef DES_LONG
        !            79: #define DES_LONG unsigned long
        !            80: #endif
        !            81: 
        !            82: typedef unsigned char des_cblock[8];
        !            83: typedef struct des_ks_struct
        !            84:        {
        !            85:        union   {
        !            86:                des_cblock _;
        !            87:                /* make sure things are correct size on machines with
        !            88:                 * 8 byte longs */
        !            89:                DES_LONG pad[2];
        !            90:                } ks;
        !            91: #undef _
        !            92: #define _      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);
        !           152: void _cdecl des_ecb3_encrypt(des_cblock *input,des_cblock *output,
        !           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);
        !           168: void _cdecl des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
        !           169: void _cdecl des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
        !           170: void _cdecl des_encrypt3(DES_LONG *data, des_key_schedule ks1,
        !           171:        des_key_schedule ks2, des_key_schedule ks3);
        !           172: void _cdecl des_decrypt3(DES_LONG *data, des_key_schedule ks1,
        !           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: #ifdef PERL5
        !           193: char *des_crypt(const char *buf,const char *salt);
        !           194: #else
        !           195: /* some stupid compilers complain because I have declared char instead
        !           196:  * of const char */
        !           197: #ifdef HEADER_DES_LOCL_H
        !           198: char *crypt(const char *buf,const char *salt);
        !           199: #else
        !           200: char *crypt();
        !           201: #endif
        !           202: #endif
        !           203: void des_ofb_encrypt(unsigned char *in,unsigned char *out,
        !           204:        int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
        !           205: void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
        !           206:        des_key_schedule schedule,des_cblock *ivec,int enc);
        !           207: DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
        !           208:        long length,int out_count,des_cblock *seed);
        !           209: void des_random_seed(des_cblock key);
        !           210: void des_random_key(des_cblock ret);
        !           211: int des_read_password(des_cblock *key,char *prompt,int verify);
        !           212: int des_read_2passwords(des_cblock *key1,des_cblock *key2,
        !           213:        char *prompt,int verify);
        !           214: int des_read_pw_string(char *buf,int length,char *prompt,int verify);
        !           215: void des_set_odd_parity(des_cblock *key);
        !           216: int des_is_weak_key(des_cblock *key);
        !           217: int des_set_key(des_cblock *key,des_key_schedule schedule);
        !           218: int _cdecl des_key_sched(des_cblock *key,des_key_schedule schedule);
        !           219: void des_string_to_key(char *str,des_cblock *key);
        !           220: void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
        !           221: void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
        !           222:        des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
        !           223: void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
        !           224:        des_key_schedule schedule, des_cblock *ivec, int *num);
        !           225: int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify);
        !           226: 
        !           227: /* Extra functions from Mark Murray <[email protected]> */
        !           228: void des_cblock_print_file(des_cblock *cb, FILE *fp);
        !           229: /* The following functions are not in the normal unix build or the
        !           230:  * SSLeay build.  When using the SSLeay build, use RAND_seed()
        !           231:  * and RAND_bytes() instead. */
        !           232: int des_new_random_key(des_cblock *key);
        !           233: void des_init_random_number_generator(des_cblock *key);
        !           234: void des_set_random_generator_seed(des_cblock *key);
        !           235: void des_set_sequence_number(des_cblock new_sequence_number);
        !           236: void des_generate_random_block(des_cblock *block);
        !           237: 
        !           238: #else
        !           239: 
        !           240: char *des_options();
        !           241: void des_ecb3_encrypt();
        !           242: DES_LONG des_cbc_cksum();
        !           243: void des_cbc_encrypt();
        !           244: void des_ncbc_encrypt();
        !           245: void des_xcbc_encrypt();
        !           246: void des_cfb_encrypt();
        !           247: void des_ede3_cfb64_encrypt();
        !           248: void des_ede3_ofb64_encrypt();
        !           249: void des_ecb_encrypt();
        !           250: void _cdecl des_encrypt();
        !           251: void _cdecl des_encrypt2();
        !           252: void _cdecl des_encrypt3();
        !           253: void _cdecl des_decrypt3();
        !           254: void des_ede3_cbc_encrypt();
        !           255: int des_enc_read();
        !           256: int des_enc_write();
        !           257: char *des_fcrypt();
        !           258: #ifdef PERL5
        !           259: char *des_crypt();
        !           260: #else
        !           261: char *crypt();
        !           262: #endif
        !           263: void des_ofb_encrypt();
        !           264: void des_pcbc_encrypt();
        !           265: DES_LONG des_quad_cksum();
        !           266: void des_random_seed();
        !           267: void des_random_key();
        !           268: int des_read_password();
        !           269: int des_read_2passwords();
        !           270: int des_read_pw_string();
        !           271: void des_set_odd_parity();
        !           272: int des_is_weak_key();
        !           273: int des_set_key();
        !           274: int des_key_sched();
        !           275: void des_string_to_key();
        !           276: void des_string_to_2keys();
        !           277: void des_cfb64_encrypt();
        !           278: void des_ofb64_encrypt();
        !           279: int des_read_pw();
        !           280: void des_xwhite_in2out();
        !           281: 
        !           282: /* Extra functions from Mark Murray <[email protected]> */
        !           283: void des_cblock_print_file();
        !           284: /* The following functions are not in the normal unix build or the
        !           285:  * SSLeay build.  When using the SSLeay build, use RAND_seed()
        !           286:  * and RAND_bytes() instead. */
        !           287: #ifdef FreeBSD
        !           288: int des_new_random_key();
        !           289: void des_init_random_number_generator();
        !           290: void des_set_random_generator_seed();
        !           291: void des_set_sequence_number();
        !           292: void des_generate_random_block();
        !           293: #endif
        !           294: 
        !           295: #endif
        !           296: 
        !           297: #ifdef  __cplusplus
        !           298: }
        !           299: #endif
        !           300: 
        !           301: #endif

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