tb_rsa.c 4.3 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124
  1. /* ====================================================================
  2. * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. *
  8. * 1. Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. *
  11. * 2. Redistributions in binary form must reproduce the above copyright
  12. * notice, this list of conditions and the following disclaimer in
  13. * the documentation and/or other materials provided with the
  14. * distribution.
  15. *
  16. * 3. All advertising materials mentioning features or use of this
  17. * software must display the following acknowledgment:
  18. * "This product includes software developed by the OpenSSL Project
  19. * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  20. *
  21. * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  22. * endorse or promote products derived from this software without
  23. * prior written permission. For written permission, please contact
  24. * licensing@OpenSSL.org.
  25. *
  26. * 5. Products derived from this software may not be called "OpenSSL"
  27. * nor may "OpenSSL" appear in their names without prior written
  28. * permission of the OpenSSL Project.
  29. *
  30. * 6. Redistributions of any form whatsoever must retain the following
  31. * acknowledgment:
  32. * "This product includes software developed by the OpenSSL Project
  33. * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  34. *
  35. * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  36. * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  37. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  38. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
  39. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  40. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  41. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  42. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  43. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  44. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  45. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  46. * OF THE POSSIBILITY OF SUCH DAMAGE.
  47. * ====================================================================
  48. *
  49. * This product includes cryptographic software written by Eric Young
  50. * (eay@cryptsoft.com). This product includes software written by Tim
  51. * Hudson (tjh@cryptsoft.com).
  52. *
  53. */
  54. #include "eng_int.h"
  55. /*
  56. * If this symbol is defined then ENGINE_get_default_RSA(), the function that
  57. * is used by RSA to hook in implementation code and cache defaults (etc),
  58. * will display brief debugging summaries to stderr with the 'nid'.
  59. */
  60. /* #define ENGINE_RSA_DEBUG */
  61. static ENGINE_TABLE *rsa_table = NULL;
  62. static const int dummy_nid = 1;
  63. void ENGINE_unregister_RSA(ENGINE *e)
  64. {
  65. engine_table_unregister(&rsa_table, e);
  66. }
  67. static void engine_unregister_all_RSA(void)
  68. {
  69. engine_table_cleanup(&rsa_table);
  70. }
  71. int ENGINE_register_RSA(ENGINE *e)
  72. {
  73. if (e->rsa_meth)
  74. return engine_table_register(&rsa_table,
  75. engine_unregister_all_RSA, e, &dummy_nid,
  76. 1, 0);
  77. return 1;
  78. }
  79. void ENGINE_register_all_RSA()
  80. {
  81. ENGINE *e;
  82. for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
  83. ENGINE_register_RSA(e);
  84. }
  85. int ENGINE_set_default_RSA(ENGINE *e)
  86. {
  87. if (e->rsa_meth)
  88. return engine_table_register(&rsa_table,
  89. engine_unregister_all_RSA, e, &dummy_nid,
  90. 1, 1);
  91. return 1;
  92. }
  93. /*
  94. * Exposed API function to get a functional reference from the implementation
  95. * table (ie. try to get a functional reference from the tabled structural
  96. * references).
  97. */
  98. ENGINE *ENGINE_get_default_RSA(void)
  99. {
  100. return engine_table_select(&rsa_table, dummy_nid);
  101. }
  102. /* Obtains an RSA implementation from an ENGINE functional reference */
  103. const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e)
  104. {
  105. return e->rsa_meth;
  106. }
  107. /* Sets an RSA implementation in an ENGINE structure */
  108. int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth)
  109. {
  110. e->rsa_meth = rsa_meth;
  111. return 1;
  112. }