Mercurial > dropbear
annotate libtommath/mtest/mtest.c @ 591:345aaed42ef4
remove unused variable
author | Matt Johnston <matt@ucc.asn.au> |
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date | Wed, 21 Jul 2010 14:07:13 +0000 |
parents | 5ff8218bcee9 |
children | 60fc6476e044 |
rev | line source |
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284
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1 /* makes a bignum test harness with NUM tests per operation |
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2 * |
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3 * the output is made in the following format [one parameter per line] |
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4 |
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5 operation |
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6 operand1 |
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7 operand2 |
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8 [... operandN] |
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9 result1 |
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10 result2 |
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11 [... resultN] |
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12 |
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13 So for example "a * b mod n" would be |
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14 |
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15 mulmod |
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16 a |
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17 b |
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18 n |
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19 a*b mod n |
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20 |
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21 e.g. if a=3, b=4 n=11 then |
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22 |
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23 mulmod |
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24 3 |
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25 4 |
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26 11 |
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27 1 |
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28 |
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29 */ |
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30 |
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31 #ifdef MP_8BIT |
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32 #define THE_MASK 127 |
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33 #else |
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34 #define THE_MASK 32767 |
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35 #endif |
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36 |
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37 #include <stdio.h> |
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38 #include <stdlib.h> |
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39 #include <time.h> |
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40 #include "mpi.c" |
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41 |
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42 FILE *rng; |
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43 |
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44 void rand_num(mp_int *a) |
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45 { |
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46 int n, size; |
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47 unsigned char buf[2048]; |
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48 |
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49 size = 1 + ((fgetc(rng)<<8) + fgetc(rng)) % 101; |
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50 buf[0] = (fgetc(rng)&1)?1:0; |
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51 fread(buf+1, 1, size, rng); |
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52 while (buf[1] == 0) buf[1] = fgetc(rng); |
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53 mp_read_raw(a, buf, 1+size); |
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54 } |
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55 |
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56 void rand_num2(mp_int *a) |
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57 { |
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58 int n, size; |
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59 unsigned char buf[2048]; |
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60 |
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61 size = 10 + ((fgetc(rng)<<8) + fgetc(rng)) % 101; |
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62 buf[0] = (fgetc(rng)&1)?1:0; |
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63 fread(buf+1, 1, size, rng); |
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64 while (buf[1] == 0) buf[1] = fgetc(rng); |
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65 mp_read_raw(a, buf, 1+size); |
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66 } |
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67 |
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68 #define mp_to64(a, b) mp_toradix(a, b, 64) |
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69 |
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70 int main(void) |
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71 { |
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72 int n, tmp; |
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73 mp_int a, b, c, d, e; |
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74 clock_t t1; |
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75 char buf[4096]; |
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76 |
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77 mp_init(&a); |
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78 mp_init(&b); |
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79 mp_init(&c); |
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80 mp_init(&d); |
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81 mp_init(&e); |
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82 |
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83 |
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84 /* initial (2^n - 1)^2 testing, makes sure the comba multiplier works [it has the new carry code] */ |
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85 /* |
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86 mp_set(&a, 1); |
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87 for (n = 1; n < 8192; n++) { |
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88 mp_mul(&a, &a, &c); |
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89 printf("mul\n"); |
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90 mp_to64(&a, buf); |
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91 printf("%s\n%s\n", buf, buf); |
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92 mp_to64(&c, buf); |
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93 printf("%s\n", buf); |
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94 |
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95 mp_add_d(&a, 1, &a); |
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96 mp_mul_2(&a, &a); |
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97 mp_sub_d(&a, 1, &a); |
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98 } |
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99 */ |
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100 |
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101 rng = fopen("/dev/urandom", "rb"); |
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102 if (rng == NULL) { |
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103 rng = fopen("/dev/random", "rb"); |
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104 if (rng == NULL) { |
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105 fprintf(stderr, "\nWarning: stdin used as random source\n\n"); |
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106 rng = stdin; |
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107 } |
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108 } |
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109 |
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110 t1 = clock(); |
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111 for (;;) { |
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112 #if 0 |
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113 if (clock() - t1 > CLOCKS_PER_SEC) { |
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114 sleep(2); |
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115 t1 = clock(); |
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116 } |
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117 #endif |
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118 n = fgetc(rng) % 15; |
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119 |
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120 if (n == 0) { |
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121 /* add tests */ |
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122 rand_num(&a); |
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123 rand_num(&b); |
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124 mp_add(&a, &b, &c); |
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125 printf("add\n"); |
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126 mp_to64(&a, buf); |
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127 printf("%s\n", buf); |
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128 mp_to64(&b, buf); |
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129 printf("%s\n", buf); |
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130 mp_to64(&c, buf); |
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131 printf("%s\n", buf); |
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132 } else if (n == 1) { |
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133 /* sub tests */ |
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134 rand_num(&a); |
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135 rand_num(&b); |
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136 mp_sub(&a, &b, &c); |
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137 printf("sub\n"); |
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138 mp_to64(&a, buf); |
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139 printf("%s\n", buf); |
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140 mp_to64(&b, buf); |
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141 printf("%s\n", buf); |
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142 mp_to64(&c, buf); |
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143 printf("%s\n", buf); |
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144 } else if (n == 2) { |
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145 /* mul tests */ |
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146 rand_num(&a); |
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147 rand_num(&b); |
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148 mp_mul(&a, &b, &c); |
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149 printf("mul\n"); |
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150 mp_to64(&a, buf); |
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151 printf("%s\n", buf); |
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152 mp_to64(&b, buf); |
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153 printf("%s\n", buf); |
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154 mp_to64(&c, buf); |
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155 printf("%s\n", buf); |
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156 } else if (n == 3) { |
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157 /* div tests */ |
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158 rand_num(&a); |
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159 rand_num(&b); |
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160 mp_div(&a, &b, &c, &d); |
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161 printf("div\n"); |
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162 mp_to64(&a, buf); |
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163 printf("%s\n", buf); |
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164 mp_to64(&b, buf); |
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165 printf("%s\n", buf); |
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166 mp_to64(&c, buf); |
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167 printf("%s\n", buf); |
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168 mp_to64(&d, buf); |
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169 printf("%s\n", buf); |
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170 } else if (n == 4) { |
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171 /* sqr tests */ |
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172 rand_num(&a); |
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173 mp_sqr(&a, &b); |
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174 printf("sqr\n"); |
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175 mp_to64(&a, buf); |
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176 printf("%s\n", buf); |
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177 mp_to64(&b, buf); |
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178 printf("%s\n", buf); |
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179 } else if (n == 5) { |
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180 /* mul_2d test */ |
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181 rand_num(&a); |
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182 mp_copy(&a, &b); |
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183 n = fgetc(rng) & 63; |
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184 mp_mul_2d(&b, n, &b); |
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185 mp_to64(&a, buf); |
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186 printf("mul2d\n"); |
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187 printf("%s\n", buf); |
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188 printf("%d\n", n); |
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189 mp_to64(&b, buf); |
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190 printf("%s\n", buf); |
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191 } else if (n == 6) { |
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192 /* div_2d test */ |
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193 rand_num(&a); |
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194 mp_copy(&a, &b); |
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195 n = fgetc(rng) & 63; |
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196 mp_div_2d(&b, n, &b, NULL); |
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197 mp_to64(&a, buf); |
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198 printf("div2d\n"); |
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199 printf("%s\n", buf); |
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200 printf("%d\n", n); |
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201 mp_to64(&b, buf); |
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202 printf("%s\n", buf); |
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203 } else if (n == 7) { |
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204 /* gcd test */ |
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Matt Johnston <matt@ucc.asn.au>
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205 rand_num(&a); |
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206 rand_num(&b); |
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207 a.sign = MP_ZPOS; |
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208 b.sign = MP_ZPOS; |
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Matt Johnston <matt@ucc.asn.au>
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209 mp_gcd(&a, &b, &c); |
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210 printf("gcd\n"); |
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211 mp_to64(&a, buf); |
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212 printf("%s\n", buf); |
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213 mp_to64(&b, buf); |
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214 printf("%s\n", buf); |
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215 mp_to64(&c, buf); |
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216 printf("%s\n", buf); |
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217 } else if (n == 8) { |
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218 /* lcm test */ |
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219 rand_num(&a); |
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220 rand_num(&b); |
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221 a.sign = MP_ZPOS; |
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222 b.sign = MP_ZPOS; |
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Matt Johnston <matt@ucc.asn.au>
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223 mp_lcm(&a, &b, &c); |
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224 printf("lcm\n"); |
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225 mp_to64(&a, buf); |
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226 printf("%s\n", buf); |
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227 mp_to64(&b, buf); |
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228 printf("%s\n", buf); |
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229 mp_to64(&c, buf); |
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230 printf("%s\n", buf); |
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231 } else if (n == 9) { |
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232 /* exptmod test */ |
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233 rand_num2(&a); |
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234 rand_num2(&b); |
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235 rand_num2(&c); |
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236 // if (c.dp[0]&1) mp_add_d(&c, 1, &c); |
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237 a.sign = b.sign = c.sign = 0; |
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Matt Johnston <matt@ucc.asn.au>
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238 mp_exptmod(&a, &b, &c, &d); |
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239 printf("expt\n"); |
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240 mp_to64(&a, buf); |
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241 printf("%s\n", buf); |
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242 mp_to64(&b, buf); |
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243 printf("%s\n", buf); |
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244 mp_to64(&c, buf); |
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245 printf("%s\n", buf); |
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246 mp_to64(&d, buf); |
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247 printf("%s\n", buf); |
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248 } else if (n == 10) { |
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249 /* invmod test */ |
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Matt Johnston <matt@ucc.asn.au>
parents:
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250 rand_num2(&a); |
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251 rand_num2(&b); |
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252 b.sign = MP_ZPOS; |
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253 a.sign = MP_ZPOS; |
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254 mp_gcd(&a, &b, &c); |
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255 if (mp_cmp_d(&c, 1) != 0) continue; |
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256 if (mp_cmp_d(&b, 1) == 0) continue; |
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257 mp_invmod(&a, &b, &c); |
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258 printf("invmod\n"); |
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259 mp_to64(&a, buf); |
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260 printf("%s\n", buf); |
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261 mp_to64(&b, buf); |
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262 printf("%s\n", buf); |
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263 mp_to64(&c, buf); |
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264 printf("%s\n", buf); |
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265 } else if (n == 11) { |
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266 rand_num(&a); |
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267 mp_mul_2(&a, &a); |
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268 mp_div_2(&a, &b); |
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269 printf("div2\n"); |
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270 mp_to64(&a, buf); |
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271 printf("%s\n", buf); |
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272 mp_to64(&b, buf); |
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273 printf("%s\n", buf); |
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274 } else if (n == 12) { |
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275 rand_num2(&a); |
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276 mp_mul_2(&a, &b); |
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277 printf("mul2\n"); |
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278 mp_to64(&a, buf); |
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279 printf("%s\n", buf); |
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280 mp_to64(&b, buf); |
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281 printf("%s\n", buf); |
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282 } else if (n == 13) { |
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283 rand_num2(&a); |
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284 tmp = abs(rand()) & THE_MASK; |
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285 mp_add_d(&a, tmp, &b); |
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286 printf("add_d\n"); |
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287 mp_to64(&a, buf); |
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288 printf("%s\n%d\n", buf, tmp); |
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289 mp_to64(&b, buf); |
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290 printf("%s\n", buf); |
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291 } else if (n == 14) { |
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292 rand_num2(&a); |
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293 tmp = abs(rand()) & THE_MASK; |
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294 mp_sub_d(&a, tmp, &b); |
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295 printf("sub_d\n"); |
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296 mp_to64(&a, buf); |
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297 printf("%s\n%d\n", buf, tmp); |
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298 mp_to64(&b, buf); |
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299 printf("%s\n", buf); |
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300 } |
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301 } |
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302 fclose(rng); |
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303 return 0; |
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304 } |
389
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284
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305 |
5ff8218bcee9
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284
diff
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306 /* $Source: /cvs/libtom/libtommath/mtest/mtest.c,v $ */ |
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284
diff
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307 /* $Revision: 1.2 $ */ |
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308 /* $Date: 2005/05/05 14:38:47 $ */ |