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/*
* ecgen, tool for generating Elliptic curve domain parameters
* Copyright (C) 2017 J08nY
*/
#include <criterion/criterion.h>
#include "gen/point.h"
#include "test/io.h"
TestSuite(point, .init = io_setup, .fini = io_teardown);
Test(point, test_point_random) {
// curve = ellinit([1, 3], 23), order = 27
GEN e = ellinit(mkvec2s(1, 3), stoi(23), -1);
curve_t curve = {.order = stoi(27), .curve = e};
int ret = point_gen_random(&curve, NULL, OFFSET_POINTS);
cr_assert_eq(ret, 1, "Point wasn't generated.");
cr_assert_eq(curve.npoints, 1, "Incorrect number of points.");
cr_assert_not_null(curve.points, "Points are null.");
cr_assert(ellisoncurve(e, curve.points[0]->point), "Point not on curve.");
cr_assert(gequal(ellorder(e, curve.points[0]->point, NULL),
curve.points[0]->order),
"Point has wrong order set.");
points_free_deep(&curve.points, 1);
}
Test(point, test_points_random) {
// curve = ellinit([1, 3], 23), order = 27
GEN e = ellinit(mkvec2s(1, 3), stoi(23), -1);
curve_t curve = {.order = stoi(27), .curve = e};
size_t npoints = 3;
arg_t arg = {.args = &npoints, .nargs = 1};
int ret = points_gen_random(&curve, &arg, OFFSET_POINTS);
cr_assert_eq(ret, 1, "Points weren't generated.");
cr_assert_eq(curve.npoints, npoints, "Incorrect number of points.");
cr_assert_not_null(curve.points, "Points are null.");
for (size_t i = 0; i < npoints; i++) {
point_t *point = curve.points[i];
cr_assert(ellisoncurve(e, point->point), "Point not on curve.");
cr_assert(gequal(ellorder(e, point->point, NULL), point->order),
"Point has wrong order set.");
}
points_free_deep(&curve.points, npoints);
}
Test(point, test_points_trial) {
// curve = ellinit([1, 3], 23), order = 27
GEN e = ellinit(mkvec2s(1, 3), stoi(23), -1);
point_t **gens = points_new(1);
gens[0] = point_new();
gens[0]->order = stoi(27);
gens[0]->cofactor = stoi(1);
gens[0]->point = mkvec2(mkintmodu(15, 23), mkintmodu(14, 23));
curve_t curve = {
.order = stoi(27), .curve = e, .ngens = 1, .generators = gens};
pari_ulong prime = 3;
arg_t arg = {.args = &prime, .nargs = 1};
int ret = points_gen_trial(&curve, &arg, OFFSET_POINTS);
cr_assert_eq(ret, 1, "Points weren't generated.");
cr_assert_eq(curve.npoints, 1, "Incorrect number of points.");
cr_assert_not_null(curve.points, "Points are null.");
cr_assert(ellisoncurve(e, curve.points[0]->point), "Point not on curve.");
cr_assert(gequal(ellorder(e, curve.points[0]->point, NULL),
curve.points[0]->order),
"Point has wrong order set.");
cr_assert(gequal(curve.points[0]->order, utoi(prime)),
"Point has wrong order.");
points_free_deep(&curve.points, 1);
points_free_deep(&curve.generators, 1);
}
Test(point, test_points_prime) {
// curve = ellinit([1, 3], 23), order = 27
GEN e = ellinit(mkvec2s(1, 3), stoi(23), -1);
point_t **gens = points_new(1);
gens[0] = point_new();
gens[0]->order = stoi(27);
gens[0]->cofactor = stoi(1);
gens[0]->point = mkvec2(mkintmodu(15, 23), mkintmodu(14, 23));
curve_t curve = {
.order = stoi(27), .curve = e, .ngens = 1, .generators = gens};
pari_ulong prime = 3;
int ret = points_gen_prime(&curve, NULL, OFFSET_POINTS);
cr_assert_eq(ret, 1, "Points weren't generated.");
cr_assert_eq(curve.npoints, 1, "Incorrect number of points.");
cr_assert_not_null(curve.points, "Points are null.");
cr_assert(ellisoncurve(e, curve.points[0]->point), "Point not on curve.");
cr_assert(gequal(ellorder(e, curve.points[0]->point, NULL),
curve.points[0]->order),
"Point has wrong order set.");
cr_assert(gequal(curve.points[0]->order, utoi(prime)),
"Point has wrong order.");
points_free_deep(&curve.points, 1);
points_free_deep(&curve.generators, 1);
}
Test(point, test_points_all) {
// curve = ellinit([1, 3], 23), order = 27
GEN e = ellinit(mkvec2s(1, 3), stoi(23), -1);
point_t **gens = points_new(1);
gens[0] = point_new();
gens[0]->order = stoi(27);
gens[0]->cofactor = stoi(1);
gens[0]->point = mkvec2(mkintmodu(15, 23), mkintmodu(14, 23));
curve_t curve = {
.order = stoi(27), .curve = e, .ngens = 1, .generators = gens};
GEN orders = mkvec3s(3, 9, 27);
size_t npoints = 3;
int ret = points_gen_allgroups(&curve, NULL, OFFSET_POINTS);
cr_assert_eq(ret, 1, "Points weren't generated.");
cr_assert_eq(curve.npoints, npoints, "Incorrect number of points.");
cr_assert_not_null(curve.points, "Points are null.");
for (size_t i = 0; i < npoints; i++) {
point_t *point = curve.points[i];
cr_assert(ellisoncurve(e, point->point), "Point not on curve.");
cr_assert(gequal(ellorder(e, point->point, NULL), point->order),
"Point has wrong order set.");
cr_assert(gequal(point->order, gel(orders, i + 1)),
"Point has wrong order.");
}
points_free_deep(&curve.points, 1);
points_free_deep(&curve.generators, 1);
}
Test(point, test_points_nonprime) {
// curve = ellinit([1, 3], 23), order = 27
GEN e = ellinit(mkvec2s(1, 3), stoi(23), -1);
point_t **gens = points_new(1);
gens[0] = point_new();
gens[0]->order = stoi(27);
gens[0]->cofactor = stoi(1);
gens[0]->point = mkvec2(mkintmodu(15, 23), mkintmodu(14, 23));
curve_t curve = {
.order = stoi(27), .curve = e, .ngens = 1, .generators = gens};
GEN orders = mkvec2s(9, 27);
size_t npoints = 2;
int ret = points_gen_nonprime(&curve, NULL, OFFSET_POINTS);
cr_assert_eq(ret, 1, "Points weren't generated.");
cr_assert_eq(curve.npoints, npoints, "Incorrect number of points.");
cr_assert_not_null(curve.points, "Points are null.");
for (size_t i = 0; i < npoints; i++) {
point_t *point = curve.points[i];
cr_assert(ellisoncurve(e, point->point), "Point not on curve.");
cr_assert(gequal(ellorder(e, point->point, NULL), point->order),
"Point has wrong order set.");
cr_assert(gequal(point->order, gel(orders, i + 1)),
"Point has wrong order.");
}
points_free_deep(&curve.points, 1);
points_free_deep(&curve.generators, 1);
}
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