| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/openssh/src/fe25519.c |
| Source code | Switch to Preprocessed file |
| Line | Source | Count | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | /* $OpenBSD: fe25519.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ | - | ||||||
| 2 | - | |||||||
| 3 | /* | - | ||||||
| 4 | * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, | - | ||||||
| 5 | * Peter Schwabe, Bo-Yin Yang. | - | ||||||
| 6 | * Copied from supercop-20130419/crypto_sign/ed25519/ref/fe25519.c | - | ||||||
| 7 | */ | - | ||||||
| 8 | - | |||||||
| 9 | #include "includes.h" | - | ||||||
| 10 | - | |||||||
| 11 | #define WINDOWSIZE 1 /* Should be 1,2, or 4 */ | - | ||||||
| 12 | #define WINDOWMASK ((1<<WINDOWSIZE)-1) | - | ||||||
| 13 | - | |||||||
| 14 | #include "fe25519.h" | - | ||||||
| 15 | - | |||||||
| 16 | static crypto_uint32 equal(crypto_uint32 a,crypto_uint32 b) /* 16-bit inputs */ | - | ||||||
| 17 | { | - | ||||||
| 18 | crypto_uint32 x = a ^ b; /* 0: yes; 1..65535: no */ | - | ||||||
| 19 | x -= 1; /* 4294967295: yes; 0..65534: no */ | - | ||||||
| 20 | x >>= 31; /* 1: yes; 0: no */ | - | ||||||
| 21 | return x; executed 3085058 times by 3 tests: return x;Executed by:
| 3085058 | ||||||
| 22 | } | - | ||||||
| 23 | - | |||||||
| 24 | static crypto_uint32 ge(crypto_uint32 a,crypto_uint32 b) /* 16-bit inputs */ | - | ||||||
| 25 | { | - | ||||||
| 26 | unsigned int x = a; | - | ||||||
| 27 | x -= (unsigned int) b; /* 0..65535: yes; 4294901761..4294967295: no */ | - | ||||||
| 28 | x >>= 31; /* 0: yes; 1: no */ | - | ||||||
| 29 | x ^= 1; /* 1: yes; 0: no */ | - | ||||||
| 30 | return x; executed 99518 times by 3 tests: return x;Executed by:
| 99518 | ||||||
| 31 | } | - | ||||||
| 32 | - | |||||||
| 33 | static crypto_uint32 times19(crypto_uint32 a) | - | ||||||
| 34 | { | - | ||||||
| 35 | return (a << 4) + (a << 1) + a; executed 276105388 times by 3 tests: return (a << 4) + (a << 1) + a;Executed by:
| 276105388 | ||||||
| 36 | } | - | ||||||
| 37 | - | |||||||
| 38 | static crypto_uint32 times38(crypto_uint32 a) | - | ||||||
| 39 | { | - | ||||||
| 40 | return (a << 5) + (a << 2) + (a << 1); executed 1513853504 times by 3 tests: return (a << 5) + (a << 2) + (a << 1);Executed by:
| 1513853504 | ||||||
| 41 | } | - | ||||||
| 42 | - | |||||||
| 43 | static void reduce_add_sub(fe25519 *r) | - | ||||||
| 44 | { | - | ||||||
| 45 | crypto_uint32 t; | - | ||||||
| 46 | int i,rep; | - | ||||||
| 47 | - | |||||||
| 48 | for(rep=0;rep<4;rep++)
| 44609355-178437420 | ||||||
| 49 | { | - | ||||||
| 50 | t = r->v[31] >> 7; | - | ||||||
| 51 | r->v[31] &= 127; | - | ||||||
| 52 | t = times19(t); | - | ||||||
| 53 | r->v[0] += t; | - | ||||||
| 54 | for(i=0;i<31;i++)
| 178437420-1236592724 | ||||||
| 55 | { | - | ||||||
| 56 | t = r->v[i] >> 8; | - | ||||||
| 57 | r->v[i+1] += t; | - | ||||||
| 58 | r->v[i] &= 255; | - | ||||||
| 59 | } executed 1236592724 times by 3 tests: end of blockExecuted by:
| 1236592724 | ||||||
| 60 | } executed 178437420 times by 3 tests: end of blockExecuted by:
| 178437420 | ||||||
| 61 | } executed 44609355 times by 3 tests: end of blockExecuted by:
| 44609355 | ||||||
| 62 | - | |||||||
| 63 | static void reduce_mul(fe25519 *r) | - | ||||||
| 64 | { | - | ||||||
| 65 | crypto_uint32 t; | - | ||||||
| 66 | int i,rep; | - | ||||||
| 67 | - | |||||||
| 68 | for(rep=0;rep<2;rep++)
| 48833984-97667968 | ||||||
| 69 | { | - | ||||||
| 70 | t = r->v[31] >> 7; | - | ||||||
| 71 | r->v[31] &= 127; | - | ||||||
| 72 | t = times19(t); | - | ||||||
| 73 | r->v[0] += t; | - | ||||||
| 74 | for(i=0;i<31;i++)
| 97667968-Inf | ||||||
| 75 | { | - | ||||||
| 76 | t = r->v[i] >> 8; | - | ||||||
| 77 | r->v[i+1] += t; | - | ||||||
| 78 | r->v[i] &= 255; | - | ||||||
| 79 | } executed 2147483647 times by 3 tests: end of blockExecuted by:
| Inf | ||||||
| 80 | } executed 97667968 times by 3 tests: end of blockExecuted by:
| 97667968 | ||||||
| 81 | } executed 48833984 times by 3 tests: end of blockExecuted by:
| 48833984 | ||||||
| 82 | - | |||||||
| 83 | /* reduction modulo 2^255-19 */ | - | ||||||
| 84 | void fe25519_freeze(fe25519 *r) | - | ||||||
| 85 | { | - | ||||||
| 86 | int i; | - | ||||||
| 87 | crypto_uint32 m = equal(r->v[31],127); | - | ||||||
| 88 | for(i=30;i>0;i--)
| 99518-2985540 | ||||||
| 89 | m &= equal(r->v[i],255); executed 2985540 times by 3 tests: m &= equal(r->v[i],255);Executed by:
| 2985540 | ||||||
| 90 | m &= ge(r->v[0],237); | - | ||||||
| 91 | - | |||||||
| 92 | m = -m; | - | ||||||
| 93 | - | |||||||
| 94 | r->v[31] -= m&127; | - | ||||||
| 95 | for(i=30;i>0;i--)
| 99518-2985540 | ||||||
| 96 | r->v[i] -= m&255; executed 2985540 times by 3 tests: r->v[i] -= m&255;Executed by:
| 2985540 | ||||||
| 97 | r->v[0] -= m&237; | - | ||||||
| 98 | } executed 99518 times by 3 tests: end of blockExecuted by:
| 99518 | ||||||
| 99 | - | |||||||
| 100 | void fe25519_unpack(fe25519 *r, const unsigned char x[32]) | - | ||||||
| 101 | { | - | ||||||
| 102 | int i; | - | ||||||
| 103 | for(i=0;i<32;i++) r->v[i] = x[i]; executed 460768 times by 2 tests: r->v[i] = x[i];Executed by:
| 14399-460768 | ||||||
| 104 | r->v[31] &= 127; | - | ||||||
| 105 | } executed 14399 times by 2 tests: end of blockExecuted by:
| 14399 | ||||||
| 106 | - | |||||||
| 107 | /* Assumes input x being reduced below 2^255 */ | - | ||||||
| 108 | void fe25519_pack(unsigned char r[32], const fe25519 *x) | - | ||||||
| 109 | { | - | ||||||
| 110 | int i; | - | ||||||
| 111 | fe25519 y = *x; | - | ||||||
| 112 | fe25519_freeze(&y); | - | ||||||
| 113 | for(i=0;i<32;i++)
| 14000-448000 | ||||||
| 114 | r[i] = y.v[i]; executed 448000 times by 3 tests: r[i] = y.v[i];Executed by:
| 448000 | ||||||
| 115 | } executed 14000 times by 3 tests: end of blockExecuted by:
| 14000 | ||||||
| 116 | - | |||||||
| 117 | int fe25519_iszero(const fe25519 *x) | - | ||||||
| 118 | { | - | ||||||
| 119 | int i; | - | ||||||
| 120 | int r; | - | ||||||
| 121 | fe25519 t = *x; | - | ||||||
| 122 | fe25519_freeze(&t); | - | ||||||
| 123 | r = equal(t.v[0],0); | - | ||||||
| 124 | for(i=1;i<32;i++)
| 0 | ||||||
| 125 | r &= equal(t.v[i],0); never executed: r &= equal(t.v[i],0); | 0 | ||||||
| 126 | return r; never executed: return r; | 0 | ||||||
| 127 | } | - | ||||||
| 128 | - | |||||||
| 129 | int fe25519_iseq_vartime(const fe25519 *x, const fe25519 *y) | - | ||||||
| 130 | { | - | ||||||
| 131 | int i; | - | ||||||
| 132 | fe25519 t1 = *x; | - | ||||||
| 133 | fe25519 t2 = *y; | - | ||||||
| 134 | fe25519_freeze(&t1); | - | ||||||
| 135 | fe25519_freeze(&t2); | - | ||||||
| 136 | for(i=0;i<32;i++)
| 14138-467079 | ||||||
| 137 | if(t1.v[i] != t2.v[i]) return 0; executed 14660 times by 2 tests: return 0;Executed by:
| 14660-452419 | ||||||
| 138 | return 1; executed 14138 times by 2 tests: return 1;Executed by:
| 14138 | ||||||
| 139 | } | - | ||||||
| 140 | - | |||||||
| 141 | void fe25519_cmov(fe25519 *r, const fe25519 *x, unsigned char b) | - | ||||||
| 142 | { | - | ||||||
| 143 | int i; | - | ||||||
| 144 | crypto_uint32 mask = b; | - | ||||||
| 145 | mask = -mask; | - | ||||||
| 146 | for(i=0;i<32;i++) r->v[i] ^= mask & (x->v[i] ^ r->v[i]); executed 1909440 times by 3 tests: r->v[i] ^= mask & (x->v[i] ^ r->v[i]);Executed by:
| 59670-1909440 | ||||||
| 147 | } executed 59670 times by 3 tests: end of blockExecuted by:
| 59670 | ||||||
| 148 | - | |||||||
| 149 | unsigned char fe25519_getparity(const fe25519 *x) | - | ||||||
| 150 | { | - | ||||||
| 151 | fe25519 t = *x; | - | ||||||
| 152 | fe25519_freeze(&t); | - | ||||||
| 153 | return t.v[0] & 1; executed 27922 times by 3 tests: return t.v[0] & 1;Executed by:
| 27922 | ||||||
| 154 | } | - | ||||||
| 155 | - | |||||||
| 156 | void fe25519_setone(fe25519 *r) | - | ||||||
| 157 | { | - | ||||||
| 158 | int i; | - | ||||||
| 159 | r->v[0] = 1; | - | ||||||
| 160 | for(i=1;i<32;i++) r->v[i]=0; executed 1311951 times by 3 tests: r->v[i]=0;Executed by:
| 42321-1311951 | ||||||
| 161 | } executed 42321 times by 3 tests: end of blockExecuted by:
| 42321 | ||||||
| 162 | - | |||||||
| 163 | void fe25519_setzero(fe25519 *r) | - | ||||||
| 164 | { | - | ||||||
| 165 | int i; | - | ||||||
| 166 | for(i=0;i<32;i++) r->v[i]=0; executed 114713952 times by 3 tests: r->v[i]=0;Executed by:
| 3584811-114713952 | ||||||
| 167 | } executed 3584811 times by 3 tests: end of blockExecuted by:
| 3584811 | ||||||
| 168 | - | |||||||
| 169 | void fe25519_neg(fe25519 *r, const fe25519 *x) | - | ||||||
| 170 | { | - | ||||||
| 171 | fe25519 t; | - | ||||||
| 172 | int i; | - | ||||||
| 173 | for(i=0;i<32;i++) t.v[i]=x->v[i]; executed 113822944 times by 3 tests: t.v[i]=x->v[i];Executed by:
| 3556967-113822944 | ||||||
| 174 | fe25519_setzero(r); | - | ||||||
| 175 | fe25519_sub(r, r, &t); | - | ||||||
| 176 | } executed 3556967 times by 3 tests: end of blockExecuted by:
| 3556967 | ||||||
| 177 | - | |||||||
| 178 | void fe25519_add(fe25519 *r, const fe25519 *x, const fe25519 *y) | - | ||||||
| 179 | { | - | ||||||
| 180 | int i; | - | ||||||
| 181 | for(i=0;i<32;i++) r->v[i] = x->v[i] + y->v[i]; executed 628788128 times by 3 tests: r->v[i] = x->v[i] + y->v[i];Executed by:
| 19649629-628788128 | ||||||
| 182 | reduce_add_sub(r); | - | ||||||
| 183 | } executed 19649629 times by 3 tests: end of blockExecuted by:
| 19649629 | ||||||
| 184 | - | |||||||
| 185 | void fe25519_sub(fe25519 *r, const fe25519 *x, const fe25519 *y) | - | ||||||
| 186 | { | - | ||||||
| 187 | int i; | - | ||||||
| 188 | crypto_uint32 t[32]; | - | ||||||
| 189 | t[0] = x->v[0] + 0x1da; | - | ||||||
| 190 | t[31] = x->v[31] + 0xfe; | - | ||||||
| 191 | for(i=1;i<31;i++) t[i] = x->v[i] + 0x1fe; executed 748791780 times by 3 tests: t[i] = x->v[i] + 0x1fe;Executed by:
| 24959726-748791780 | ||||||
| 192 | for(i=0;i<32;i++) r->v[i] = t[i] - y->v[i]; executed 798711232 times by 3 tests: r->v[i] = t[i] - y->v[i];Executed by:
| 24959726-798711232 | ||||||
| 193 | reduce_add_sub(r); | - | ||||||
| 194 | } executed 24959726 times by 3 tests: end of blockExecuted by:
| 24959726 | ||||||
| 195 | - | |||||||
| 196 | void fe25519_mul(fe25519 *r, const fe25519 *x, const fe25519 *y) | - | ||||||
| 197 | { | - | ||||||
| 198 | int i,j; | - | ||||||
| 199 | crypto_uint32 t[63]; | - | ||||||
| 200 | for(i=0;i<63;i++)t[i] = 0; executed 2147483647 times by 3 tests: t[i] = 0;Executed by:
| 48833984-Inf | ||||||
| 201 | - | |||||||
| 202 | for(i=0;i<32;i++)
| 48833984-1562687488 | ||||||
| 203 | for(j=0;j<32;j++)
| 1562687488-Inf | ||||||
| 204 | t[i+j] += x->v[i] * y->v[j]; executed 2147483647 times by 3 tests: t[i+j] += x->v[i] * y->v[j];Executed by:
| Inf | ||||||
| 205 | - | |||||||
| 206 | for(i=32;i<63;i++)
| 48833984-1513853504 | ||||||
| 207 | r->v[i-32] = t[i-32] + times38(t[i]); executed 1513853504 times by 3 tests: r->v[i-32] = t[i-32] + times38(t[i]);Executed by:
| 1513853504 | ||||||
| 208 | r->v[31] = t[31]; /* result now in r[0]...r[31] */ | - | ||||||
| 209 | - | |||||||
| 210 | reduce_mul(r); | - | ||||||
| 211 | } executed 48833984 times by 3 tests: end of blockExecuted by:
| 48833984 | ||||||
| 212 | - | |||||||
| 213 | void fe25519_square(fe25519 *r, const fe25519 *x) | - | ||||||
| 214 | { | - | ||||||
| 215 | fe25519_mul(r, x, x); | - | ||||||
| 216 | } executed 21442584 times by 3 tests: end of blockExecuted by:
| 21442584 | ||||||
| 217 | - | |||||||
| 218 | void fe25519_invert(fe25519 *r, const fe25519 *x) | - | ||||||
| 219 | { | - | ||||||
| 220 | fe25519 z2; | - | ||||||
| 221 | fe25519 z9; | - | ||||||
| 222 | fe25519 z11; | - | ||||||
| 223 | fe25519 z2_5_0; | - | ||||||
| 224 | fe25519 z2_10_0; | - | ||||||
| 225 | fe25519 z2_20_0; | - | ||||||
| 226 | fe25519 z2_50_0; | - | ||||||
| 227 | fe25519 z2_100_0; | - | ||||||
| 228 | fe25519 t0; | - | ||||||
| 229 | fe25519 t1; | - | ||||||
| 230 | int i; | - | ||||||
| 231 | - | |||||||
| 232 | /* 2 */ fe25519_square(&z2,x); | - | ||||||
| 233 | /* 4 */ fe25519_square(&t1,&z2); | - | ||||||
| 234 | /* 8 */ fe25519_square(&t0,&t1); | - | ||||||
| 235 | /* 9 */ fe25519_mul(&z9,&t0,x); | - | ||||||
| 236 | /* 11 */ fe25519_mul(&z11,&z9,&z2); | - | ||||||
| 237 | /* 22 */ fe25519_square(&t0,&z11); | - | ||||||
| 238 | /* 2^5 - 2^0 = 31 */ fe25519_mul(&z2_5_0,&t0,&z9); | - | ||||||
| 239 | - | |||||||
| 240 | /* 2^6 - 2^1 */ fe25519_square(&t0,&z2_5_0); | - | ||||||
| 241 | /* 2^7 - 2^2 */ fe25519_square(&t1,&t0); | - | ||||||
| 242 | /* 2^8 - 2^3 */ fe25519_square(&t0,&t1); | - | ||||||
| 243 | /* 2^9 - 2^4 */ fe25519_square(&t1,&t0); | - | ||||||
| 244 | /* 2^10 - 2^5 */ fe25519_square(&t0,&t1); | - | ||||||
| 245 | /* 2^10 - 2^0 */ fe25519_mul(&z2_10_0,&t0,&z2_5_0); | - | ||||||
| 246 | - | |||||||
| 247 | /* 2^11 - 2^1 */ fe25519_square(&t0,&z2_10_0); | - | ||||||
| 248 | /* 2^12 - 2^2 */ fe25519_square(&t1,&t0); | - | ||||||
| 249 | /* 2^20 - 2^10 */ for (i = 2;i < 10;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } executed 56000 times by 3 tests: end of blockExecuted by:
| 14000-56000 | ||||||
| 250 | /* 2^20 - 2^0 */ fe25519_mul(&z2_20_0,&t1,&z2_10_0); | - | ||||||
| 251 | - | |||||||
| 252 | /* 2^21 - 2^1 */ fe25519_square(&t0,&z2_20_0); | - | ||||||
| 253 | /* 2^22 - 2^2 */ fe25519_square(&t1,&t0); | - | ||||||
| 254 | /* 2^40 - 2^20 */ for (i = 2;i < 20;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } executed 126000 times by 3 tests: end of blockExecuted by:
| 14000-126000 | ||||||
| 255 | /* 2^40 - 2^0 */ fe25519_mul(&t0,&t1,&z2_20_0); | - | ||||||
| 256 | - | |||||||
| 257 | /* 2^41 - 2^1 */ fe25519_square(&t1,&t0); | - | ||||||
| 258 | /* 2^42 - 2^2 */ fe25519_square(&t0,&t1); | - | ||||||
| 259 | /* 2^50 - 2^10 */ for (i = 2;i < 10;i += 2) { fe25519_square(&t1,&t0); fe25519_square(&t0,&t1); } executed 56000 times by 3 tests: end of blockExecuted by:
| 14000-56000 | ||||||
| 260 | /* 2^50 - 2^0 */ fe25519_mul(&z2_50_0,&t0,&z2_10_0); | - | ||||||
| 261 | - | |||||||
| 262 | /* 2^51 - 2^1 */ fe25519_square(&t0,&z2_50_0); | - | ||||||
| 263 | /* 2^52 - 2^2 */ fe25519_square(&t1,&t0); | - | ||||||
| 264 | /* 2^100 - 2^50 */ for (i = 2;i < 50;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } executed 336000 times by 3 tests: end of blockExecuted by:
| 14000-336000 | ||||||
| 265 | /* 2^100 - 2^0 */ fe25519_mul(&z2_100_0,&t1,&z2_50_0); | - | ||||||
| 266 | - | |||||||
| 267 | /* 2^101 - 2^1 */ fe25519_square(&t1,&z2_100_0); | - | ||||||
| 268 | /* 2^102 - 2^2 */ fe25519_square(&t0,&t1); | - | ||||||
| 269 | /* 2^200 - 2^100 */ for (i = 2;i < 100;i += 2) { fe25519_square(&t1,&t0); fe25519_square(&t0,&t1); } executed 686000 times by 3 tests: end of blockExecuted by:
| 14000-686000 | ||||||
| 270 | /* 2^200 - 2^0 */ fe25519_mul(&t1,&t0,&z2_100_0); | - | ||||||
| 271 | - | |||||||
| 272 | /* 2^201 - 2^1 */ fe25519_square(&t0,&t1); | - | ||||||
| 273 | /* 2^202 - 2^2 */ fe25519_square(&t1,&t0); | - | ||||||
| 274 | /* 2^250 - 2^50 */ for (i = 2;i < 50;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } executed 336000 times by 3 tests: end of blockExecuted by:
| 14000-336000 | ||||||
| 275 | /* 2^250 - 2^0 */ fe25519_mul(&t0,&t1,&z2_50_0); | - | ||||||
| 276 | - | |||||||
| 277 | /* 2^251 - 2^1 */ fe25519_square(&t1,&t0); | - | ||||||
| 278 | /* 2^252 - 2^2 */ fe25519_square(&t0,&t1); | - | ||||||
| 279 | /* 2^253 - 2^3 */ fe25519_square(&t1,&t0); | - | ||||||
| 280 | /* 2^254 - 2^4 */ fe25519_square(&t0,&t1); | - | ||||||
| 281 | /* 2^255 - 2^5 */ fe25519_square(&t1,&t0); | - | ||||||
| 282 | /* 2^255 - 21 */ fe25519_mul(r,&t1,&z11); | - | ||||||
| 283 | } executed 14000 times by 3 tests: end of blockExecuted by:
| 14000 | ||||||
| 284 | - | |||||||
| 285 | void fe25519_pow2523(fe25519 *r, const fe25519 *x) | - | ||||||
| 286 | { | - | ||||||
| 287 | fe25519 z2; | - | ||||||
| 288 | fe25519 z9; | - | ||||||
| 289 | fe25519 z11; | - | ||||||
| 290 | fe25519 z2_5_0; | - | ||||||
| 291 | fe25519 z2_10_0; | - | ||||||
| 292 | fe25519 z2_20_0; | - | ||||||
| 293 | fe25519 z2_50_0; | - | ||||||
| 294 | fe25519 z2_100_0; | - | ||||||
| 295 | fe25519 t; | - | ||||||
| 296 | int i; | - | ||||||
| 297 | - | |||||||
| 298 | /* 2 */ fe25519_square(&z2,x); | - | ||||||
| 299 | /* 4 */ fe25519_square(&t,&z2); | - | ||||||
| 300 | /* 8 */ fe25519_square(&t,&t); | - | ||||||
| 301 | /* 9 */ fe25519_mul(&z9,&t,x); | - | ||||||
| 302 | /* 11 */ fe25519_mul(&z11,&z9,&z2); | - | ||||||
| 303 | /* 22 */ fe25519_square(&t,&z11); | - | ||||||
| 304 | /* 2^5 - 2^0 = 31 */ fe25519_mul(&z2_5_0,&t,&z9); | - | ||||||
| 305 | - | |||||||
| 306 | /* 2^6 - 2^1 */ fe25519_square(&t,&z2_5_0); | - | ||||||
| 307 | /* 2^10 - 2^5 */ for (i = 1;i < 5;i++) { fe25519_square(&t,&t); } executed 57596 times by 2 tests: end of blockExecuted by:
| 14399-57596 | ||||||
| 308 | /* 2^10 - 2^0 */ fe25519_mul(&z2_10_0,&t,&z2_5_0); | - | ||||||
| 309 | - | |||||||
| 310 | /* 2^11 - 2^1 */ fe25519_square(&t,&z2_10_0); | - | ||||||
| 311 | /* 2^20 - 2^10 */ for (i = 1;i < 10;i++) { fe25519_square(&t,&t); } executed 129591 times by 2 tests: end of blockExecuted by:
| 14399-129591 | ||||||
| 312 | /* 2^20 - 2^0 */ fe25519_mul(&z2_20_0,&t,&z2_10_0); | - | ||||||
| 313 | - | |||||||
| 314 | /* 2^21 - 2^1 */ fe25519_square(&t,&z2_20_0); | - | ||||||
| 315 | /* 2^40 - 2^20 */ for (i = 1;i < 20;i++) { fe25519_square(&t,&t); } executed 273581 times by 2 tests: end of blockExecuted by:
| 14399-273581 | ||||||
| 316 | /* 2^40 - 2^0 */ fe25519_mul(&t,&t,&z2_20_0); | - | ||||||
| 317 | - | |||||||
| 318 | /* 2^41 - 2^1 */ fe25519_square(&t,&t); | - | ||||||
| 319 | /* 2^50 - 2^10 */ for (i = 1;i < 10;i++) { fe25519_square(&t,&t); } executed 129591 times by 2 tests: end of blockExecuted by:
| 14399-129591 | ||||||
| 320 | /* 2^50 - 2^0 */ fe25519_mul(&z2_50_0,&t,&z2_10_0); | - | ||||||
| 321 | - | |||||||
| 322 | /* 2^51 - 2^1 */ fe25519_square(&t,&z2_50_0); | - | ||||||
| 323 | /* 2^100 - 2^50 */ for (i = 1;i < 50;i++) { fe25519_square(&t,&t); } executed 705551 times by 2 tests: end of blockExecuted by:
| 14399-705551 | ||||||
| 324 | /* 2^100 - 2^0 */ fe25519_mul(&z2_100_0,&t,&z2_50_0); | - | ||||||
| 325 | - | |||||||
| 326 | /* 2^101 - 2^1 */ fe25519_square(&t,&z2_100_0); | - | ||||||
| 327 | /* 2^200 - 2^100 */ for (i = 1;i < 100;i++) { fe25519_square(&t,&t); } executed 1425501 times by 2 tests: end of blockExecuted by:
| 14399-1425501 | ||||||
| 328 | /* 2^200 - 2^0 */ fe25519_mul(&t,&t,&z2_100_0); | - | ||||||
| 329 | - | |||||||
| 330 | /* 2^201 - 2^1 */ fe25519_square(&t,&t); | - | ||||||
| 331 | /* 2^250 - 2^50 */ for (i = 1;i < 50;i++) { fe25519_square(&t,&t); } executed 705551 times by 2 tests: end of blockExecuted by:
| 14399-705551 | ||||||
| 332 | /* 2^250 - 2^0 */ fe25519_mul(&t,&t,&z2_50_0); | - | ||||||
| 333 | - | |||||||
| 334 | /* 2^251 - 2^1 */ fe25519_square(&t,&t); | - | ||||||
| 335 | /* 2^252 - 2^2 */ fe25519_square(&t,&t); | - | ||||||
| 336 | /* 2^252 - 3 */ fe25519_mul(r,&t,x); | - | ||||||
| 337 | } executed 14399 times by 2 tests: end of blockExecuted by:
| 14399 | ||||||
| Source code | Switch to Preprocessed file |