v3_skey.c 4.6 KB

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  1. /* v3_skey.c */
  2. /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
  3. * project 1999.
  4. */
  5. /* ====================================================================
  6. * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
  7. *
  8. * Redistribution and use in source and binary forms, with or without
  9. * modification, are permitted provided that the following conditions
  10. * are met:
  11. *
  12. * 1. Redistributions of source code must retain the above copyright
  13. * notice, this list of conditions and the following disclaimer.
  14. *
  15. * 2. Redistributions in binary form must reproduce the above copyright
  16. * notice, this list of conditions and the following disclaimer in
  17. * the documentation and/or other materials provided with the
  18. * distribution.
  19. *
  20. * 3. All advertising materials mentioning features or use of this
  21. * software must display the following acknowledgment:
  22. * "This product includes software developed by the OpenSSL Project
  23. * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24. *
  25. * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26. * endorse or promote products derived from this software without
  27. * prior written permission. For written permission, please contact
  28. * licensing@OpenSSL.org.
  29. *
  30. * 5. Products derived from this software may not be called "OpenSSL"
  31. * nor may "OpenSSL" appear in their names without prior written
  32. * permission of the OpenSSL Project.
  33. *
  34. * 6. Redistributions of any form whatsoever must retain the following
  35. * acknowledgment:
  36. * "This product includes software developed by the OpenSSL Project
  37. * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38. *
  39. * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40. * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50. * OF THE POSSIBILITY OF SUCH DAMAGE.
  51. * ====================================================================
  52. *
  53. * This product includes cryptographic software written by Eric Young
  54. * (eay@cryptsoft.com). This product includes software written by Tim
  55. * Hudson (tjh@cryptsoft.com).
  56. *
  57. */
  58. #include <stdio.h>
  59. #include "cryptlib.h"
  60. #include <openssl/x509v3.h>
  61. static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, char *str);
  62. X509V3_EXT_METHOD v3_skey_id = {
  63. NID_subject_key_identifier, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
  64. 0,0,0,0,
  65. (X509V3_EXT_I2S)i2s_ASN1_OCTET_STRING,
  66. (X509V3_EXT_S2I)s2i_skey_id,
  67. 0,0,0,0,
  68. NULL};
  69. char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
  70. ASN1_OCTET_STRING *oct)
  71. {
  72. return hex_to_string(oct->data, oct->length);
  73. }
  74. ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
  75. X509V3_CTX *ctx, char *str)
  76. {
  77. ASN1_OCTET_STRING *oct;
  78. long length;
  79. if(!(oct = M_ASN1_OCTET_STRING_new())) {
  80. X509V3err(X509V3_F_S2I_ASN1_OCTET_STRING,ERR_R_MALLOC_FAILURE);
  81. return NULL;
  82. }
  83. if(!(oct->data = string_to_hex(str, &length))) {
  84. M_ASN1_OCTET_STRING_free(oct);
  85. return NULL;
  86. }
  87. oct->length = length;
  88. return oct;
  89. }
  90. static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method,
  91. X509V3_CTX *ctx, char *str)
  92. {
  93. ASN1_OCTET_STRING *oct;
  94. ASN1_BIT_STRING *pk;
  95. unsigned char pkey_dig[EVP_MAX_MD_SIZE];
  96. unsigned int diglen;
  97. if(strcmp(str, "hash")) return s2i_ASN1_OCTET_STRING(method, ctx, str);
  98. if(!(oct = M_ASN1_OCTET_STRING_new())) {
  99. X509V3err(X509V3_F_S2I_SKEY_ID,ERR_R_MALLOC_FAILURE);
  100. return NULL;
  101. }
  102. if(ctx && (ctx->flags == CTX_TEST)) return oct;
  103. if(!ctx || (!ctx->subject_req && !ctx->subject_cert)) {
  104. X509V3err(X509V3_F_S2I_SKEY_ID,X509V3_R_NO_PUBLIC_KEY);
  105. goto err;
  106. }
  107. if(ctx->subject_req)
  108. pk = ctx->subject_req->req_info->pubkey->public_key;
  109. else pk = ctx->subject_cert->cert_info->key->public_key;
  110. if(!pk) {
  111. X509V3err(X509V3_F_S2I_SKEY_ID,X509V3_R_NO_PUBLIC_KEY);
  112. goto err;
  113. }
  114. EVP_Digest(pk->data, pk->length, pkey_dig, &diglen, EVP_sha1(), NULL);
  115. if(!M_ASN1_OCTET_STRING_set(oct, pkey_dig, diglen)) {
  116. X509V3err(X509V3_F_S2I_SKEY_ID,ERR_R_MALLOC_FAILURE);
  117. goto err;
  118. }
  119. return oct;
  120. err:
  121. M_ASN1_OCTET_STRING_free(oct);
  122. return NULL;
  123. }