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1 /* |
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2 * auth_driver.c |
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3 * |
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4 * a driver for auth functions |
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5 * |
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6 * David A. McGrew |
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7 * Cisco Systems, Inc. |
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8 */ |
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9 |
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10 /* |
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11 * |
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12 * Copyright (c) 2001-2006, Cisco Systems, Inc. |
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13 * All rights reserved. |
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14 * |
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15 * Redistribution and use in source and binary forms, with or without |
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16 * modification, are permitted provided that the following conditions |
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17 * are met: |
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18 * |
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19 * Redistributions of source code must retain the above copyright |
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20 * notice, this list of conditions and the following disclaimer. |
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21 * |
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22 * Redistributions in binary form must reproduce the above |
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23 * copyright notice, this list of conditions and the following |
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24 * disclaimer in the documentation and/or other materials provided |
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25 * with the distribution. |
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26 * |
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27 * Neither the name of the Cisco Systems, Inc. nor the names of its |
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28 * contributors may be used to endorse or promote products derived |
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29 * from this software without specific prior written permission. |
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30 * |
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31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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34 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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35 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
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36 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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37 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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38 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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42 * OF THE POSSIBILITY OF SUCH DAMAGE. |
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43 * |
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44 */ |
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45 |
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46 |
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47 #include <stdio.h> /* for printf() */ |
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48 #include <stdlib.h> /* for xalloc() */ |
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49 #include <unistd.h> /* for getopt() */ |
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50 |
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51 #include "auth.h" |
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52 #include "null_auth.h" |
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53 |
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54 #define PRINT_DEBUG_DATA 0 |
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55 |
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56 extern auth_type_t tmmhv2; |
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57 |
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58 const uint16_t msg0[9] = { |
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59 0x6015, 0xf141, 0x5ba1, 0x29a0, 0xf604, 0xd1c, 0x2d9, 0xaa8a, 0x7931 |
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60 }; |
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61 |
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62 /* key1 is for TAG_WORDS = 2 */ |
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63 |
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64 const uint16_t key1[47] = { |
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65 0xe627, 0x6a01, 0x5ea7, 0xf27a, 0xc536, 0x2192, 0x11be, 0xea35, |
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66 0xdb9d, 0x63d6, 0xfa8a, 0xfc45, 0xe08b, 0xd216, 0xced2, 0x7853, |
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67 0x1a82, 0x22f5, 0x90fb, 0x1c29, 0x708e, 0xd06f, 0x82c3, 0xbee6, |
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68 0x4f21, 0x6f33, 0x65c0, 0xd211, 0xc25e, 0x9138, 0x4fa3, 0x7c1f, |
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69 0x61ac, 0x3489, 0x2976, 0x8c19, 0x8252, 0xddbf, 0xcad3, 0xc28f, |
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70 0x68d6, 0x58dd, 0x504f, 0x2bbf, 0x0278, 0x70b7, 0xcfca |
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71 }; |
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72 |
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73 double |
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74 auth_bits_per_second(auth_t *h, int msg_len); |
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75 |
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76 |
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77 void |
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78 usage(char *prog_name) { |
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79 printf("usage: %s [ -t | -v ]\n", prog_name); |
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80 exit(255); |
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81 } |
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82 |
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83 #define MAX_MSG_LEN 2048 |
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84 |
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85 int |
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86 main (int argc, char *argv[]) { |
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87 auth_t *a = NULL; |
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88 err_status_t status; |
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89 int i; |
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90 int c; |
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91 unsigned do_timing_test = 0; |
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92 unsigned do_validation = 0; |
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93 |
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94 /* process input arguments */ |
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95 while (1) { |
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96 c = getopt(argc, argv, "tv"); |
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97 if (c == -1) |
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98 break; |
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99 switch (c) { |
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100 case 't': |
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101 do_timing_test = 1; |
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102 break; |
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103 case 'v': |
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104 do_validation = 1; |
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105 break; |
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106 default: |
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107 usage(argv[0]); |
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108 } |
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109 } |
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110 |
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111 printf("auth driver\nDavid A. McGrew\nCisco Systems, Inc.\n"); |
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112 |
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113 if (!do_validation && !do_timing_test) |
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114 usage(argv[0]); |
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115 |
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116 if (do_validation) { |
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117 printf("running self-test for %s...", tmmhv2.description); |
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118 status = tmmhv2_add_big_test(); |
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119 if (status) { |
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120 printf("tmmhv2_add_big_test failed with error code %d\n", status); |
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121 exit(status); |
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122 } |
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123 status = auth_type_self_test(&tmmhv2); |
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124 if (status) { |
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125 printf("failed with error code %d\n", status); |
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126 exit(status); |
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127 } |
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128 printf("passed\n"); |
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129 } |
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130 |
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131 if (do_timing_test) { |
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132 |
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133 /* tmmhv2 timing test */ |
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134 status = auth_type_alloc(&tmmhv2, &a, 94, 4); |
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135 if (status) { |
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136 fprintf(stderr, "can't allocate tmmhv2\n"); |
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137 exit(status); |
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138 } |
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139 status = auth_init(a, (uint8_t *)key1); |
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140 if (status) { |
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141 printf("error initializaing auth function\n"); |
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142 exit(status); |
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143 } |
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144 |
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145 printf("timing %s (tag length %d)\n", |
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146 tmmhv2.description, auth_get_tag_length(a)); |
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147 for (i=8; i <= MAX_MSG_LEN; i *= 2) |
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148 printf("msg len: %d\tgigabits per second: %f\n", |
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149 i, auth_bits_per_second(a, i) / 1E9); |
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150 |
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151 status = auth_dealloc(a); |
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152 if (status) { |
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153 printf("error deallocating auth function\n"); |
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154 exit(status); |
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155 } |
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156 |
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157 } |
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158 |
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159 return 0; |
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160 } |
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161 |
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162 #define NUM_TRIALS 100000 |
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163 |
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164 #include <time.h> |
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165 |
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166 double |
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167 auth_bits_per_second(auth_t *a, int msg_len_octets) { |
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168 int i; |
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169 clock_t timer; |
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170 uint8_t *result; |
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171 int msg_len = (msg_len_octets + 1)/2; |
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172 uint16_t *msg_string; |
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173 |
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174 /* create random message */ |
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175 msg_string = (uint16_t *) crypto_alloc(msg_len_octets); |
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176 if (msg_string == NULL) |
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177 return 0.0; /* indicate failure */ |
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178 for (i=0; i < msg_len; i++) |
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179 msg_string[i] = (uint16_t) random(); |
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180 |
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181 /* allocate temporary storage for authentication tag */ |
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182 result = crypto_alloc(auth_get_tag_length(a)); |
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183 if (result == NULL) { |
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184 free(msg_string); |
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185 return 0.0; /* indicate failure */ |
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186 } |
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187 |
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188 timer = clock(); |
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189 for (i=0; i < NUM_TRIALS; i++) { |
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190 auth_compute(a, (uint8_t *)msg_string, msg_len_octets, (uint8_t *)result); |
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191 } |
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192 timer = clock() - timer; |
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193 |
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194 free(msg_string); |
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195 free(result); |
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196 |
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197 return (double) NUM_TRIALS * 8 * msg_len_octets * CLOCKS_PER_SEC / timer; |
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198 } |
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199 |
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200 |