Mercurial > hg > nginx
annotate src/core/ngx_sha1.c @ 6592:2c7b488a61fb
Set IP_BIND_ADDRESS_NO_PORT socket option for upstream sockets.
author | Andrei Belov <defan@nginx.com> |
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date | Mon, 20 Jun 2016 10:41:17 +0300 |
parents | 1064ea81ed3a |
children | 9eefb38f0005 |
rev | line source |
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6586
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An internal SHA1 implementation.
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1 |
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2 /* |
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3 * Copyright (C) Maxim Dounin |
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4 * Copyright (C) Nginx, Inc. |
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5 * |
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6 * An internal SHA1 implementation. |
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7 * It is not expected to be optimal and is used only |
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8 * if no SHA1 implementation was found in system. |
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9 */ |
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10 |
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11 |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 #include <ngx_sha1.h> |
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15 |
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16 |
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17 #if !(NGX_HAVE_SHA1) |
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18 |
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19 static const u_char *ngx_sha1_body(ngx_sha1_t *ctx, const u_char *data, |
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20 size_t size); |
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21 |
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22 |
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23 void |
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24 ngx_sha1_init(ngx_sha1_t *ctx) |
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25 { |
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26 ctx->a = 0x67452301; |
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27 ctx->b = 0xefcdab89; |
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28 ctx->c = 0x98badcfe; |
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29 ctx->d = 0x10325476; |
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30 ctx->e = 0xc3d2e1f0; |
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31 |
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32 ctx->bytes = 0; |
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33 } |
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34 |
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35 |
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36 void |
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37 ngx_sha1_update(ngx_sha1_t *ctx, const void *data, size_t size) |
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38 { |
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39 size_t used, free; |
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40 |
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41 used = (size_t) (ctx->bytes & 0x3f); |
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42 ctx->bytes += size; |
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43 |
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44 if (used) { |
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45 free = 64 - used; |
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46 |
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47 if (size < free) { |
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48 ngx_memcpy(&ctx->buffer[used], data, size); |
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49 return; |
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50 } |
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51 |
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52 ngx_memcpy(&ctx->buffer[used], data, free); |
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53 data = (u_char *) data + free; |
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54 size -= free; |
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55 (void) ngx_sha1_body(ctx, ctx->buffer, 64); |
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56 } |
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57 |
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58 if (size >= 64) { |
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59 data = ngx_sha1_body(ctx, data, size & ~(size_t) 0x3f); |
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60 size &= 0x3f; |
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61 } |
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62 |
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63 ngx_memcpy(ctx->buffer, data, size); |
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64 } |
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65 |
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66 |
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67 void |
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68 ngx_sha1_final(u_char result[20], ngx_sha1_t *ctx) |
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69 { |
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70 size_t used, free; |
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71 |
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72 used = (size_t) (ctx->bytes & 0x3f); |
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73 |
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74 ctx->buffer[used++] = 0x80; |
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75 |
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76 free = 64 - used; |
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77 |
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78 if (free < 8) { |
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79 ngx_memzero(&ctx->buffer[used], free); |
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80 (void) ngx_sha1_body(ctx, ctx->buffer, 64); |
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81 used = 0; |
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82 free = 64; |
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83 } |
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84 |
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85 ngx_memzero(&ctx->buffer[used], free - 8); |
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86 |
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87 ctx->bytes <<= 3; |
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88 ctx->buffer[56] = (u_char) (ctx->bytes >> 56); |
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89 ctx->buffer[57] = (u_char) (ctx->bytes >> 48); |
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90 ctx->buffer[58] = (u_char) (ctx->bytes >> 40); |
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91 ctx->buffer[59] = (u_char) (ctx->bytes >> 32); |
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92 ctx->buffer[60] = (u_char) (ctx->bytes >> 24); |
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93 ctx->buffer[61] = (u_char) (ctx->bytes >> 16); |
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94 ctx->buffer[62] = (u_char) (ctx->bytes >> 8); |
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95 ctx->buffer[63] = (u_char) ctx->bytes; |
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96 |
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97 (void) ngx_sha1_body(ctx, ctx->buffer, 64); |
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98 |
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99 result[0] = (u_char) (ctx->a >> 24); |
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100 result[1] = (u_char) (ctx->a >> 16); |
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101 result[2] = (u_char) (ctx->a >> 8); |
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102 result[3] = (u_char) ctx->a; |
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103 result[4] = (u_char) (ctx->b >> 24); |
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104 result[5] = (u_char) (ctx->b >> 16); |
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105 result[6] = (u_char) (ctx->b >> 8); |
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106 result[7] = (u_char) ctx->b; |
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107 result[8] = (u_char) (ctx->c >> 24); |
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108 result[9] = (u_char) (ctx->c >> 16); |
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109 result[10] = (u_char) (ctx->c >> 8); |
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110 result[11] = (u_char) ctx->c; |
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111 result[12] = (u_char) (ctx->d >> 24); |
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112 result[13] = (u_char) (ctx->d >> 16); |
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113 result[14] = (u_char) (ctx->d >> 8); |
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114 result[15] = (u_char) ctx->d; |
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115 result[16] = (u_char) (ctx->e >> 24); |
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116 result[17] = (u_char) (ctx->e >> 16); |
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117 result[18] = (u_char) (ctx->e >> 8); |
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118 result[19] = (u_char) ctx->e; |
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119 |
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120 ngx_memzero(ctx, sizeof(*ctx)); |
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121 } |
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122 |
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123 |
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124 /* |
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125 * Helper functions. |
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126 */ |
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127 |
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128 #define ROTATE(bits, word) (((word) << (bits)) | ((word) >> (32 - (bits)))) |
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129 |
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130 #define F1(b, c, d) (((b) & (c)) | ((~(b)) & (d))) |
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131 #define F2(b, c, d) ((b) ^ (c) ^ (d)) |
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132 #define F3(b, c, d) (((b) & (c)) | ((b) & (d)) | ((c) & (d))) |
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133 |
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134 #define STEP(f, a, b, c, d, e, w, t) \ |
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135 temp = ROTATE(5, (a)) + f((b), (c), (d)) + (e) + (w) + (t); \ |
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136 (e) = (d); \ |
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137 (d) = (c); \ |
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138 (c) = ROTATE(30, (b)); \ |
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139 (b) = (a); \ |
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140 (a) = temp; |
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141 |
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142 |
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143 /* |
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144 * GET() reads 4 input bytes in big-endian byte order and returns |
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145 * them as uint32_t. |
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146 */ |
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147 |
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148 #define GET(n) \ |
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149 ((uint32_t) p[n * 4 + 3] | \ |
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150 ((uint32_t) p[n * 4 + 2] << 8) | \ |
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151 ((uint32_t) p[n * 4 + 1] << 16) | \ |
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152 ((uint32_t) p[n * 4] << 24)) |
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153 |
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154 |
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155 /* |
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156 * This processes one or more 64-byte data blocks, but does not update |
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157 * the bit counters. There are no alignment requirements. |
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158 */ |
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159 |
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160 static const u_char * |
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161 ngx_sha1_body(ngx_sha1_t *ctx, const u_char *data, size_t size) |
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162 { |
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163 uint32_t a, b, c, d, e, temp; |
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164 uint32_t saved_a, saved_b, saved_c, saved_d, saved_e; |
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165 uint32_t words[80]; |
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166 ngx_uint_t i; |
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167 const u_char *p; |
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168 |
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169 p = data; |
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170 |
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171 a = ctx->a; |
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172 b = ctx->b; |
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173 c = ctx->c; |
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174 d = ctx->d; |
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Maxim Dounin <mdounin@mdounin.ru>
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175 e = ctx->e; |
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176 |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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177 do { |
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178 saved_a = a; |
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179 saved_b = b; |
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180 saved_c = c; |
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Maxim Dounin <mdounin@mdounin.ru>
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181 saved_d = d; |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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182 saved_e = e; |
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183 |
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184 /* Load data block into the words array */ |
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185 |
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186 for (i = 0; i < 16; i++) { |
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187 words[i] = GET(i); |
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188 } |
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189 |
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190 for (i = 16; i < 80; i++) { |
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191 words[i] = ROTATE(1, words[i - 3] ^ words[i - 8] ^ words[i - 14] |
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An internal SHA1 implementation.
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192 ^ words[i - 16]); |
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193 } |
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194 |
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195 /* Transformations */ |
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196 |
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197 STEP(F1, a, b, c, d, e, words[0], 0x5a827999); |
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198 STEP(F1, a, b, c, d, e, words[1], 0x5a827999); |
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199 STEP(F1, a, b, c, d, e, words[2], 0x5a827999); |
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200 STEP(F1, a, b, c, d, e, words[3], 0x5a827999); |
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201 STEP(F1, a, b, c, d, e, words[4], 0x5a827999); |
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202 STEP(F1, a, b, c, d, e, words[5], 0x5a827999); |
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203 STEP(F1, a, b, c, d, e, words[6], 0x5a827999); |
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204 STEP(F1, a, b, c, d, e, words[7], 0x5a827999); |
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205 STEP(F1, a, b, c, d, e, words[8], 0x5a827999); |
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206 STEP(F1, a, b, c, d, e, words[9], 0x5a827999); |
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207 STEP(F1, a, b, c, d, e, words[10], 0x5a827999); |
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208 STEP(F1, a, b, c, d, e, words[11], 0x5a827999); |
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209 STEP(F1, a, b, c, d, e, words[12], 0x5a827999); |
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210 STEP(F1, a, b, c, d, e, words[13], 0x5a827999); |
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211 STEP(F1, a, b, c, d, e, words[14], 0x5a827999); |
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212 STEP(F1, a, b, c, d, e, words[15], 0x5a827999); |
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213 STEP(F1, a, b, c, d, e, words[16], 0x5a827999); |
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214 STEP(F1, a, b, c, d, e, words[17], 0x5a827999); |
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215 STEP(F1, a, b, c, d, e, words[18], 0x5a827999); |
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216 STEP(F1, a, b, c, d, e, words[19], 0x5a827999); |
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An internal SHA1 implementation.
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217 |
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218 STEP(F2, a, b, c, d, e, words[20], 0x6ed9eba1); |
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219 STEP(F2, a, b, c, d, e, words[21], 0x6ed9eba1); |
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220 STEP(F2, a, b, c, d, e, words[22], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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221 STEP(F2, a, b, c, d, e, words[23], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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222 STEP(F2, a, b, c, d, e, words[24], 0x6ed9eba1); |
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An internal SHA1 implementation.
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223 STEP(F2, a, b, c, d, e, words[25], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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224 STEP(F2, a, b, c, d, e, words[26], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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225 STEP(F2, a, b, c, d, e, words[27], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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226 STEP(F2, a, b, c, d, e, words[28], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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227 STEP(F2, a, b, c, d, e, words[29], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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228 STEP(F2, a, b, c, d, e, words[30], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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229 STEP(F2, a, b, c, d, e, words[31], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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230 STEP(F2, a, b, c, d, e, words[32], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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231 STEP(F2, a, b, c, d, e, words[33], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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232 STEP(F2, a, b, c, d, e, words[34], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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233 STEP(F2, a, b, c, d, e, words[35], 0x6ed9eba1); |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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234 STEP(F2, a, b, c, d, e, words[36], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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235 STEP(F2, a, b, c, d, e, words[37], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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236 STEP(F2, a, b, c, d, e, words[38], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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237 STEP(F2, a, b, c, d, e, words[39], 0x6ed9eba1); |
1064ea81ed3a
An internal SHA1 implementation.
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|
238 |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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239 STEP(F3, a, b, c, d, e, words[40], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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|
240 STEP(F3, a, b, c, d, e, words[41], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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241 STEP(F3, a, b, c, d, e, words[42], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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|
242 STEP(F3, a, b, c, d, e, words[43], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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|
243 STEP(F3, a, b, c, d, e, words[44], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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244 STEP(F3, a, b, c, d, e, words[45], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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|
245 STEP(F3, a, b, c, d, e, words[46], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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|
246 STEP(F3, a, b, c, d, e, words[47], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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247 STEP(F3, a, b, c, d, e, words[48], 0x8f1bbcdc); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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248 STEP(F3, a, b, c, d, e, words[49], 0x8f1bbcdc); |
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249 STEP(F3, a, b, c, d, e, words[50], 0x8f1bbcdc); |
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250 STEP(F3, a, b, c, d, e, words[51], 0x8f1bbcdc); |
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251 STEP(F3, a, b, c, d, e, words[52], 0x8f1bbcdc); |
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252 STEP(F3, a, b, c, d, e, words[53], 0x8f1bbcdc); |
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253 STEP(F3, a, b, c, d, e, words[54], 0x8f1bbcdc); |
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254 STEP(F3, a, b, c, d, e, words[55], 0x8f1bbcdc); |
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255 STEP(F3, a, b, c, d, e, words[56], 0x8f1bbcdc); |
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256 STEP(F3, a, b, c, d, e, words[57], 0x8f1bbcdc); |
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257 STEP(F3, a, b, c, d, e, words[58], 0x8f1bbcdc); |
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258 STEP(F3, a, b, c, d, e, words[59], 0x8f1bbcdc); |
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259 |
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260 STEP(F2, a, b, c, d, e, words[60], 0xca62c1d6); |
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261 STEP(F2, a, b, c, d, e, words[61], 0xca62c1d6); |
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262 STEP(F2, a, b, c, d, e, words[62], 0xca62c1d6); |
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263 STEP(F2, a, b, c, d, e, words[63], 0xca62c1d6); |
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264 STEP(F2, a, b, c, d, e, words[64], 0xca62c1d6); |
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265 STEP(F2, a, b, c, d, e, words[65], 0xca62c1d6); |
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266 STEP(F2, a, b, c, d, e, words[66], 0xca62c1d6); |
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267 STEP(F2, a, b, c, d, e, words[67], 0xca62c1d6); |
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268 STEP(F2, a, b, c, d, e, words[68], 0xca62c1d6); |
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269 STEP(F2, a, b, c, d, e, words[69], 0xca62c1d6); |
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270 STEP(F2, a, b, c, d, e, words[70], 0xca62c1d6); |
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271 STEP(F2, a, b, c, d, e, words[71], 0xca62c1d6); |
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272 STEP(F2, a, b, c, d, e, words[72], 0xca62c1d6); |
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273 STEP(F2, a, b, c, d, e, words[73], 0xca62c1d6); |
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274 STEP(F2, a, b, c, d, e, words[74], 0xca62c1d6); |
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275 STEP(F2, a, b, c, d, e, words[75], 0xca62c1d6); |
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276 STEP(F2, a, b, c, d, e, words[76], 0xca62c1d6); |
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277 STEP(F2, a, b, c, d, e, words[77], 0xca62c1d6); |
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278 STEP(F2, a, b, c, d, e, words[78], 0xca62c1d6); |
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An internal SHA1 implementation.
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279 STEP(F2, a, b, c, d, e, words[79], 0xca62c1d6); |
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An internal SHA1 implementation.
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280 |
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281 a += saved_a; |
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282 b += saved_b; |
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283 c += saved_c; |
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284 d += saved_d; |
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285 e += saved_e; |
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286 |
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287 p += 64; |
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288 |
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289 } while (size -= 64); |
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290 |
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291 ctx->a = a; |
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292 ctx->b = b; |
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293 ctx->c = c; |
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294 ctx->d = d; |
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295 ctx->e = e; |
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296 |
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297 return p; |
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298 } |
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299 |
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300 #endif |