aes.h 6.0 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149
  1. /* crypto/aes/aes.h */
  2. /* ====================================================================
  3. * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions
  7. * are met:
  8. *
  9. * 1. Redistributions of source code must retain the above copyright
  10. * notice, this list of conditions and the following disclaimer.
  11. *
  12. * 2. Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in
  14. * the documentation and/or other materials provided with the
  15. * distribution.
  16. *
  17. * 3. All advertising materials mentioning features or use of this
  18. * software must display the following acknowledgment:
  19. * "This product includes software developed by the OpenSSL Project
  20. * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  21. *
  22. * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23. * endorse or promote products derived from this software without
  24. * prior written permission. For written permission, please contact
  25. * [email protected].
  26. *
  27. * 5. Products derived from this software may not be called "OpenSSL"
  28. * nor may "OpenSSL" appear in their names without prior written
  29. * permission of the OpenSSL Project.
  30. *
  31. * 6. Redistributions of any form whatsoever must retain the following
  32. * acknowledgment:
  33. * "This product includes software developed by the OpenSSL Project
  34. * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  35. *
  36. * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37. * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47. * OF THE POSSIBILITY OF SUCH DAMAGE.
  48. * ====================================================================
  49. *
  50. */
  51. #ifndef HEADER_AES_H
  52. # define HEADER_AES_H
  53. # include <openssl/opensslconf.h>
  54. # ifdef OPENSSL_NO_AES
  55. # error AES is disabled.
  56. # endif
  57. # include <stddef.h>
  58. # define AES_ENCRYPT 1
  59. # define AES_DECRYPT 0
  60. /*
  61. * Because array size can't be a const in C, the following two are macros.
  62. * Both sizes are in bytes.
  63. */
  64. # define AES_MAXNR 14
  65. # define AES_BLOCK_SIZE 16
  66. #ifdef __cplusplus
  67. extern "C" {
  68. #endif
  69. /* This should be a hidden type, but EVP requires that the size be known */
  70. struct aes_key_st {
  71. # ifdef AES_LONG
  72. unsigned long rd_key[4 * (AES_MAXNR + 1)];
  73. # else
  74. unsigned int rd_key[4 * (AES_MAXNR + 1)];
  75. # endif
  76. int rounds;
  77. };
  78. typedef struct aes_key_st AES_KEY;
  79. const char *AES_options(void);
  80. int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
  81. AES_KEY *key);
  82. int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
  83. AES_KEY *key);
  84. int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits,
  85. AES_KEY *key);
  86. int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits,
  87. AES_KEY *key);
  88. void AES_encrypt(const unsigned char *in, unsigned char *out,
  89. const AES_KEY *key);
  90. void AES_decrypt(const unsigned char *in, unsigned char *out,
  91. const AES_KEY *key);
  92. void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
  93. const AES_KEY *key, const int enc);
  94. void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
  95. size_t length, const AES_KEY *key,
  96. unsigned char *ivec, const int enc);
  97. void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
  98. size_t length, const AES_KEY *key,
  99. unsigned char *ivec, int *num, const int enc);
  100. void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
  101. size_t length, const AES_KEY *key,
  102. unsigned char *ivec, int *num, const int enc);
  103. void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
  104. size_t length, const AES_KEY *key,
  105. unsigned char *ivec, int *num, const int enc);
  106. void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
  107. size_t length, const AES_KEY *key,
  108. unsigned char *ivec, int *num);
  109. void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
  110. size_t length, const AES_KEY *key,
  111. unsigned char ivec[AES_BLOCK_SIZE],
  112. unsigned char ecount_buf[AES_BLOCK_SIZE],
  113. unsigned int *num);
  114. /* NB: the IV is _two_ blocks long */
  115. void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
  116. size_t length, const AES_KEY *key,
  117. unsigned char *ivec, const int enc);
  118. /* NB: the IV is _four_ blocks long */
  119. void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
  120. size_t length, const AES_KEY *key,
  121. const AES_KEY *key2, const unsigned char *ivec,
  122. const int enc);
  123. int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
  124. unsigned char *out,
  125. const unsigned char *in, unsigned int inlen);
  126. int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
  127. unsigned char *out,
  128. const unsigned char *in, unsigned int inlen);
  129. #ifdef __cplusplus
  130. }
  131. #endif
  132. #endif /* !HEADER_AES_H */