1 | /* $FreeBSD$ */ |
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2 | /* $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 itojun Exp $ */ |
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3 | |
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4 | /* |
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5 | * sha2.h |
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6 | * |
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7 | * Version 1.0.0beta1 |
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8 | * |
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9 | * Written by Aaron D. Gifford <me@aarongifford.com> |
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10 | * |
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11 | * Copyright 2000 Aaron D. Gifford. All rights reserved. |
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12 | * |
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13 | * Redistribution and use in source and binary forms, with or without |
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14 | * modification, are permitted provided that the following conditions |
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15 | * are met: |
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16 | * 1. Redistributions of source code must retain the above copyright |
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17 | * notice, this list of conditions and the following disclaimer. |
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18 | * 2. Redistributions in binary form must reproduce the above copyright |
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19 | * notice, this list of conditions and the following disclaimer in the |
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20 | * documentation and/or other materials provided with the distribution. |
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21 | * 3. Neither the name of the copyright holder nor the names of contributors |
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22 | * may be used to endorse or promote products derived from this software |
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23 | * without specific prior written permission. |
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24 | * |
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25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND |
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26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE |
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29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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35 | * SUCH DAMAGE. |
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36 | * |
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37 | */ |
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38 | |
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39 | #ifndef __SHA2_H__ |
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40 | #define __SHA2_H__ |
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41 | |
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42 | #ifdef __cplusplus |
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43 | extern "C" { |
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44 | #endif |
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45 | |
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46 | |
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47 | /*** SHA-256/384/512 Various Length Definitions ***********************/ |
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48 | #define SHA256_BLOCK_LENGTH 64 |
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49 | #define SHA256_DIGEST_LENGTH 32 |
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50 | #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) |
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51 | #define SHA384_BLOCK_LENGTH 128 |
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52 | #define SHA384_DIGEST_LENGTH 48 |
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53 | #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) |
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54 | #define SHA512_BLOCK_LENGTH 128 |
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55 | #define SHA512_DIGEST_LENGTH 64 |
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56 | #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) |
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57 | |
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58 | |
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59 | /*** SHA-256/384/512 Context Structures *******************************/ |
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60 | /* NOTE: If your architecture does not define either u_intXX_t types or |
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61 | * uintXX_t (from inttypes.h), you may need to define things by hand |
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62 | * for your system: |
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63 | */ |
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64 | #if 0 |
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65 | typedef unsigned char u_int8_t; /* 1-byte (8-bits) */ |
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66 | typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */ |
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67 | typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */ |
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68 | #endif |
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69 | /* |
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70 | * Most BSD systems already define u_intXX_t types, as does Linux. |
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71 | * Some systems, however, like Compaq's Tru64 Unix instead can use |
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72 | * uintXX_t types defined by very recent ANSI C standards and included |
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73 | * in the file: |
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74 | * |
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75 | * #include <inttypes.h> |
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76 | * |
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77 | * If you choose to use <inttypes.h> then please define: |
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78 | * |
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79 | * #define SHA2_USE_INTTYPES_H |
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80 | * |
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81 | * Or on the command line during compile: |
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82 | * |
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83 | * cc -DSHA2_USE_INTTYPES_H ... |
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84 | */ |
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85 | #if 0 /*def SHA2_USE_INTTYPES_H*/ |
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86 | |
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87 | typedef struct _SHA256_CTX { |
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88 | uint32_t state[8]; |
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89 | uint64_t bitcount; |
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90 | uint8_t buffer[SHA256_BLOCK_LENGTH]; |
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91 | } SHA256_CTX; |
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92 | typedef struct _SHA512_CTX { |
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93 | uint64_t state[8]; |
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94 | uint64_t bitcount[2]; |
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95 | uint8_t buffer[SHA512_BLOCK_LENGTH]; |
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96 | } SHA512_CTX; |
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97 | |
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98 | #else /* SHA2_USE_INTTYPES_H */ |
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99 | |
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100 | typedef struct _SHA256_CTX { |
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101 | u_int32_t state[8]; |
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102 | u_int64_t bitcount; |
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103 | u_int8_t buffer[SHA256_BLOCK_LENGTH]; |
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104 | } SHA256_CTX; |
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105 | typedef struct _SHA512_CTX { |
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106 | u_int64_t state[8]; |
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107 | u_int64_t bitcount[2]; |
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108 | u_int8_t buffer[SHA512_BLOCK_LENGTH]; |
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109 | } SHA512_CTX; |
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110 | |
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111 | #endif /* SHA2_USE_INTTYPES_H */ |
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112 | |
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113 | typedef SHA512_CTX SHA384_CTX; |
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114 | |
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115 | |
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116 | /*** SHA-256/384/512 Function Prototypes ******************************/ |
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117 | |
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118 | void SHA256_Init(SHA256_CTX *); |
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119 | void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t); |
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120 | void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); |
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121 | char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); |
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122 | char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); |
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123 | |
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124 | void SHA384_Init(SHA384_CTX*); |
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125 | void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t); |
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126 | void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); |
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127 | char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); |
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128 | char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); |
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129 | |
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130 | void SHA512_Init(SHA512_CTX*); |
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131 | void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t); |
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132 | void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); |
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133 | char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); |
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134 | char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); |
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135 | |
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136 | #ifdef __cplusplus |
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137 | } |
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138 | #endif /* __cplusplus */ |
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139 | |
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140 | #endif /* __SHA2_H__ */ |
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141 | |
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