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stream.c 4.5 KB

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  1. /* bugs/stream.c */
  2. /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  3. * All rights reserved.
  4. *
  5. * This package is an SSL implementation written
  6. * by Eric Young (eay@cryptsoft.com).
  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 (tjh@cryptsoft.com).
  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 (eay@cryptsoft.com)"
  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 (tjh@cryptsoft.com)"
  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. #include <stdio.h>
  59. #include <openssl/rc4.h>
  60. #ifdef OPENSSL_NO_DES
  61. #include <des.h>
  62. #else
  63. #include <openssl/des.h>
  64. #endif
  65. /* show how stream ciphers are not very good. The mac has no affect
  66. * on RC4 while it does for cfb DES
  67. */
  68. main()
  69. {
  70. fprintf(stderr,"rc4\n");
  71. rc4();
  72. fprintf(stderr,"cfb des\n");
  73. des();
  74. }
  75. int des()
  76. {
  77. des_key_schedule ks;
  78. des_cblock iv,key;
  79. int num;
  80. static char *keystr="01234567";
  81. static char *in1="0123456789ABCEDFdata 12345";
  82. static char *in2="9876543210abcdefdata 12345";
  83. unsigned char out[100];
  84. int i;
  85. des_set_key((des_cblock *)keystr,ks);
  86. num=0;
  87. memset(iv,0,8);
  88. des_cfb64_encrypt(in1,out,26,ks,(des_cblock *)iv,&num,1);
  89. for (i=0; i<26; i++)
  90. fprintf(stderr,"%02X ",out[i]);
  91. fprintf(stderr,"\n");
  92. num=0;
  93. memset(iv,0,8);
  94. des_cfb64_encrypt(in2,out,26,ks,(des_cblock *)iv,&num,1);
  95. for (i=0; i<26; i++)
  96. fprintf(stderr,"%02X ",out[i]);
  97. fprintf(stderr,"\n");
  98. }
  99. int rc4()
  100. {
  101. static char *keystr="0123456789abcdef";
  102. RC4_KEY key;
  103. unsigned char in[100],out[100];
  104. int i;
  105. RC4_set_key(&key,16,keystr);
  106. in[0]='\0';
  107. strcpy(in,"0123456789ABCEDFdata 12345");
  108. RC4(key,26,in,out);
  109. for (i=0; i<26; i++)
  110. fprintf(stderr,"%02X ",out[i]);
  111. fprintf(stderr,"\n");
  112. RC4_set_key(&key,16,keystr);
  113. in[0]='\0';
  114. strcpy(in,"9876543210abcdefdata 12345");
  115. RC4(key,26,in,out);
  116. for (i=0; i<26; i++)
  117. fprintf(stderr,"%02X ",out[i]);
  118. fprintf(stderr,"\n");
  119. }