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New "i15" implementation of big integers (faster, and constant-time, on ARM Cortex M0/M0+); imported into EC, ECDSA, RSA.

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This commit is contained in:
Thomas Pornin 2017-01-04 19:21:09 +01:00
parent 6dd8c51ba7
commit 28e4e120b8
29 changed files with 2993 additions and 326 deletions
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2
src/int/i31_montmul.c
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@ -41,7 +41,7 @@ br_i31_montymul(uint32_t *d, const uint32_t *x, const uint32_t *y,
uint64_t r, zh;
xu = x[u + 1];
f = ((d[1] + x[u + 1] * y[1]) * m0i) & 0x7FFFFFFF;
f = MUL31_lo((d[1] + MUL31_lo(x[u + 1], y[1])), m0i);
r = 0;
for (v = 0; v < len4; v += 4) {