des.h 9.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215
  1. /* $OpenBSD: des.h,v 1.21 2023/07/31 05:04:06 tb Exp $ */
  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. #ifndef HEADER_NEW_DES_H
  59. #define HEADER_NEW_DES_H
  60. #include <openssl/opensslconf.h>
  61. #ifdef OPENSSL_NO_DES
  62. #error DES is disabled.
  63. #endif
  64. #ifdef __cplusplus
  65. extern "C" {
  66. #endif
  67. typedef unsigned char DES_cblock[8];
  68. typedef /* const */ unsigned char const_DES_cblock[8];
  69. /* With "const", gcc 2.8.1 on Solaris thinks that DES_cblock *
  70. * and const_DES_cblock * are incompatible pointer types. */
  71. typedef struct DES_ks {
  72. union {
  73. DES_cblock cblock;
  74. /* make sure things are correct size on machines with
  75. * 8 byte longs */
  76. DES_LONG deslong[2];
  77. } ks[16];
  78. } DES_key_schedule;
  79. #define DES_KEY_SZ (sizeof(DES_cblock))
  80. #define DES_SCHEDULE_SZ (sizeof(DES_key_schedule))
  81. #define DES_ENCRYPT 1
  82. #define DES_DECRYPT 0
  83. #define DES_CBC_MODE 0
  84. #define DES_PCBC_MODE 1
  85. #define DES_ecb2_encrypt(i,o,k1,k2,e) \
  86. DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
  87. #define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
  88. DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
  89. #define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
  90. DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
  91. #define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
  92. DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
  93. extern int DES_check_key; /* defaults to false */
  94. extern int DES_rw_mode; /* defaults to DES_PCBC_MODE */
  95. void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output,
  96. DES_key_schedule *ks1, DES_key_schedule *ks2,
  97. DES_key_schedule *ks3, int enc);
  98. DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output,
  99. long length, DES_key_schedule *schedule,
  100. const_DES_cblock *ivec);
  101. /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */
  102. void DES_cbc_encrypt(const unsigned char *input, unsigned char *output,
  103. long length, DES_key_schedule *schedule, DES_cblock *ivec,
  104. int enc);
  105. void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output,
  106. long length, DES_key_schedule *schedule, DES_cblock *ivec,
  107. int enc);
  108. void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output,
  109. long length, DES_key_schedule *schedule, DES_cblock *ivec,
  110. const_DES_cblock *inw, const_DES_cblock *outw, int enc);
  111. void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
  112. long length, DES_key_schedule *schedule, DES_cblock *ivec,
  113. int enc);
  114. void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output,
  115. DES_key_schedule *ks, int enc);
  116. /* This is the DES encryption function that gets called by just about
  117. every other DES routine in the library. You should not use this
  118. function except to implement 'modes' of DES. I say this because the
  119. functions that call this routine do the conversion from 'char *' to
  120. long, and this needs to be done to make sure 'non-aligned' memory
  121. access do not occur. The characters are loaded 'little endian'.
  122. Data is a pointer to 2 unsigned long's and ks is the
  123. DES_key_schedule to use. enc, is non zero specifies encryption,
  124. zero if decryption. */
  125. void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc);
  126. /* This functions is the same as DES_encrypt1() except that the DES
  127. initial permutation (IP) and final permutation (FP) have been left
  128. out. As for DES_encrypt1(), you should not use this function.
  129. It is used by the routines in the library that implement triple DES.
  130. IP() DES_encrypt2() DES_encrypt2() DES_encrypt2() FP() is the same
  131. as DES_encrypt1() DES_encrypt1() DES_encrypt1() except faster :-). */
  132. void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc);
  133. void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
  134. DES_key_schedule *ks2, DES_key_schedule *ks3);
  135. void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
  136. DES_key_schedule *ks2, DES_key_schedule *ks3);
  137. void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
  138. long length,
  139. DES_key_schedule *ks1, DES_key_schedule *ks2,
  140. DES_key_schedule *ks3, DES_cblock *ivec, int enc);
  141. void DES_ede3_cbcm_encrypt(const unsigned char *in, unsigned char *out,
  142. long length,
  143. DES_key_schedule *ks1, DES_key_schedule *ks2,
  144. DES_key_schedule *ks3,
  145. DES_cblock *ivec1, DES_cblock *ivec2,
  146. int enc);
  147. void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out,
  148. long length, DES_key_schedule *ks1,
  149. DES_key_schedule *ks2, DES_key_schedule *ks3,
  150. DES_cblock *ivec, int *num, int enc);
  151. void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out,
  152. int numbits, long length, DES_key_schedule *ks1,
  153. DES_key_schedule *ks2, DES_key_schedule *ks3,
  154. DES_cblock *ivec, int enc);
  155. void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out,
  156. long length, DES_key_schedule *ks1,
  157. DES_key_schedule *ks2, DES_key_schedule *ks3,
  158. DES_cblock *ivec, int *num);
  159. int DES_enc_read(int fd, void *buf, int len, DES_key_schedule *sched,
  160. DES_cblock *iv);
  161. int DES_enc_write(int fd, const void *buf, int len, DES_key_schedule *sched,
  162. DES_cblock *iv);
  163. char *DES_fcrypt(const char *buf, const char *salt, char *ret);
  164. char *DES_crypt(const char *buf, const char *salt);
  165. void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
  166. long length, DES_key_schedule *schedule, DES_cblock *ivec);
  167. void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,
  168. long length, DES_key_schedule *schedule, DES_cblock *ivec,
  169. int enc);
  170. DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[],
  171. long length, int out_count, DES_cblock *seed);
  172. int DES_random_key(DES_cblock *ret);
  173. void DES_set_odd_parity(DES_cblock *key);
  174. int DES_check_key_parity(const_DES_cblock *key);
  175. int DES_is_weak_key(const_DES_cblock *key);
  176. /* DES_set_key (= set_key = DES_key_sched = key_sched) calls
  177. * DES_set_key_checked if global variable DES_check_key is set,
  178. * DES_set_key_unchecked otherwise. */
  179. int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule);
  180. int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule);
  181. int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule);
  182. void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule);
  183. void DES_string_to_key(const char *str, DES_cblock *key);
  184. void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2);
  185. void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out, long length,
  186. DES_key_schedule *schedule, DES_cblock *ivec, int *num,
  187. int enc);
  188. void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out, long length,
  189. DES_key_schedule *schedule, DES_cblock *ivec, int *num);
  190. #define DES_fixup_key_parity DES_set_odd_parity
  191. #ifdef __cplusplus
  192. }
  193. #endif
  194. #endif