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Make secp256k1_fe_sqrt constant time

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This commit is contained in:
Pieter Wuille
2016-07-09 14:23:44 +02:00
parent e2a8e92125
commit 926836ad36
6 changed files with 24 additions and 14 deletions
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6
src/bench_internal.c
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@@ -181,12 +181,12 @@ void bench_field_inverse_var(void* arg) {
}
}
void bench_field_sqrt_var(void* arg) {
void bench_field_sqrt(void* arg) {
int i;
bench_inv_t *data = (bench_inv_t*)arg;
for (i = 0; i < 20000; i++) {
secp256k1_fe_sqrt_var(&data->fe_x, &data->fe_x);
secp256k1_fe_sqrt(&data->fe_x, &data->fe_x);
secp256k1_fe_add(&data->fe_x, &data->fe_y);
}
}
@@ -357,7 +357,7 @@ int main(int argc, char **argv) {
if (have_flag(argc, argv, "field") || have_flag(argc, argv, "mul")) run_benchmark("field_mul", bench_field_mul, bench_setup, NULL, &data, 10, 200000);
if (have_flag(argc, argv, "field") || have_flag(argc, argv, "inverse")) run_benchmark("field_inverse", bench_field_inverse, bench_setup, NULL, &data, 10, 20000);
if (have_flag(argc, argv, "field") || have_flag(argc, argv, "inverse")) run_benchmark("field_inverse_var", bench_field_inverse_var, bench_setup, NULL, &data, 10, 20000);
if (have_flag(argc, argv, "field") || have_flag(argc, argv, "sqrt")) run_benchmark("field_sqrt_var", bench_field_sqrt_var, bench_setup, NULL, &data, 10, 20000);
if (have_flag(argc, argv, "field") || have_flag(argc, argv, "sqrt")) run_benchmark("field_sqrt", bench_field_sqrt, bench_setup, NULL, &data, 10, 20000);
if (have_flag(argc, argv, "group") || have_flag(argc, argv, "double")) run_benchmark("group_double_var", bench_group_double_var, bench_setup, NULL, &data, 10, 200000);
if (have_flag(argc, argv, "group") || have_flag(argc, argv, "add")) run_benchmark("group_add_var", bench_group_add_var, bench_setup, NULL, &data, 10, 200000);