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/*
* ecgen, tool for generating Elliptic curve domain parameters
* Copyright (C) 2017 J08nY
*/
#include <criterion/criterion.h>
#include "gen/field.h"
#include "math/poly.h"
#include "math/twists.h"
#include "test/default.h"
#include "util/random.h"
TestSuite(twists, .init = default_setup, .fini = default_teardown);
Test(twists, test_twist_rand_to_fp) {
random_init();
GEN a = mkintmodu(3, 23);
GEN b = mkintmodu(4, 23);
curve_t curve = {.a = a,
.b = b,
.field = stoi(23),
.curve = ellinit(mkvec2(a, b), stoi(23), -1),
.order = stoi(24)};
curve_t to = {0};
twist_rand_to(&to, &curve);
cr_assert_not_null(to.a, );
cr_assert_not_null(to.b, );
cr_assert_not_null(to.field, );
cr_assert_not_null(to.curve, );
cr_assert(equalii(to.order, stoi(24)), );
}
Test(twists, test_twist_rand_to_f2m) {
random_init();
GEN field = poly_find_gen(13);
GEN a = field_ielement(field, stoi(2));
GEN b = field_ielement(field, stoi(3));
curve_t curve = {
.a = a,
.b = b,
.field = field,
.curve = ellinit(mkvecn(5, gen_1, a, gen_0, gen_0, b), NULL, -1),
.order = stoi(8140)};
curve_t to = {0};
twist_rand_to(&to, &curve);
cr_assert_not_null(to.a, );
cr_assert_not_null(to.b, );
cr_assert_not_null(to.field, );
cr_assert_not_null(to.curve, );
cr_assert(equalii(to.order, stoi(8246)), );
}
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