md5.h 3.2 KB

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  1. /**
  2. * \file md5.h
  3. *
  4. * \brief MD5 message digest algorithm (hash function)
  5. *
  6. * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
  7. * SPDX-License-Identifier: Apache-2.0
  8. *
  9. * Licensed under the Apache License, Version 2.0 (the "License"); you may
  10. * not use this file except in compliance with the License.
  11. * You may obtain a copy of the License at
  12. *
  13. * http://www.apache.org/licenses/LICENSE-2.0
  14. *
  15. * Unless required by applicable law or agreed to in writing, software
  16. * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  17. * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18. * See the License for the specific language governing permissions and
  19. * limitations under the License.
  20. *
  21. * This file is part of mbed TLS (https://tls.mbed.org)
  22. */
  23. #ifndef MBEDTLS_MD5_H
  24. #define MBEDTLS_MD5_H
  25. #if !defined(MBEDTLS_CONFIG_FILE)
  26. #include "config.h"
  27. #else
  28. #include MBEDTLS_CONFIG_FILE
  29. #endif
  30. #include <stddef.h>
  31. #include <stdint.h>
  32. #if !defined(MBEDTLS_MD5_ALT)
  33. // Regular implementation
  34. //
  35. #ifdef __cplusplus
  36. extern "C" {
  37. #endif
  38. /**
  39. * \brief MD5 context structure
  40. */
  41. typedef struct
  42. {
  43. uint32_t total[2]; /*!< number of bytes processed */
  44. uint32_t state[4]; /*!< intermediate digest state */
  45. unsigned char buffer[64]; /*!< data block being processed */
  46. }
  47. mbedtls_md5_context;
  48. /**
  49. * \brief Initialize MD5 context
  50. *
  51. * \param ctx MD5 context to be initialized
  52. */
  53. void mbedtls_md5_init( mbedtls_md5_context *ctx );
  54. /**
  55. * \brief Clear MD5 context
  56. *
  57. * \param ctx MD5 context to be cleared
  58. */
  59. void mbedtls_md5_free( mbedtls_md5_context *ctx );
  60. /**
  61. * \brief Clone (the state of) an MD5 context
  62. *
  63. * \param dst The destination context
  64. * \param src The context to be cloned
  65. */
  66. void mbedtls_md5_clone( mbedtls_md5_context *dst,
  67. const mbedtls_md5_context *src );
  68. /**
  69. * \brief MD5 context setup
  70. *
  71. * \param ctx context to be initialized
  72. */
  73. void mbedtls_md5_starts( mbedtls_md5_context *ctx );
  74. /**
  75. * \brief MD5 process buffer
  76. *
  77. * \param ctx MD5 context
  78. * \param input buffer holding the data
  79. * \param ilen length of the input data
  80. */
  81. void mbedtls_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen );
  82. /**
  83. * \brief MD5 final digest
  84. *
  85. * \param ctx MD5 context
  86. * \param output MD5 checksum result
  87. */
  88. void mbedtls_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] );
  89. /* Internal use */
  90. void mbedtls_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] );
  91. #ifdef __cplusplus
  92. }
  93. #endif
  94. #else /* MBEDTLS_MD5_ALT */
  95. #include "md5_alt.h"
  96. #endif /* MBEDTLS_MD5_ALT */
  97. #ifdef __cplusplus
  98. extern "C" {
  99. #endif
  100. /**
  101. * \brief Output = MD5( input buffer )
  102. *
  103. * \param input buffer holding the data
  104. * \param ilen length of the input data
  105. * \param output MD5 checksum result
  106. */
  107. void mbedtls_md5( const unsigned char *input, size_t ilen, unsigned char output[16] );
  108. /**
  109. * \brief Checkup routine
  110. *
  111. * \return 0 if successful, or 1 if the test failed
  112. */
  113. int mbedtls_md5_self_test( int verbose );
  114. #ifdef __cplusplus
  115. }
  116. #endif
  117. #endif /* mbedtls_md5.h */