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293 lines
8.0 KiB
293 lines
8.0 KiB
#include <cybozu/test.hpp>
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#include <mcl/bn256.hpp>
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#define BN256_DEFINE_STRUCT
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#include <mcl/bn256.h>
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#include <iostream>
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template<size_t N>
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std::ostream dump(std::ostream& os, const uint64_t (&x)[N])
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{
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for (size_t i = 0; i < N; i++) {
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char buf[64];
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CYBOZU_SNPRINTF(buf, sizeof(buf), "%016llx", (long long)x[i]);
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os << buf;
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}
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return os;
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}
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using namespace mcl::bn256;
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CYBOZU_TEST_AUTO(init)
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{
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int ret;
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CYBOZU_TEST_EQUAL(sizeof(BN256_Fr), sizeof(Fr));
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CYBOZU_TEST_EQUAL(sizeof(BN256_G1), sizeof(G1));
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CYBOZU_TEST_EQUAL(sizeof(BN256_G2), sizeof(G2));
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CYBOZU_TEST_EQUAL(sizeof(BN256_GT), sizeof(Fp12));
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ret = BN256_setErrFile("stderr");
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CYBOZU_TEST_EQUAL(ret, 0);
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ret = BN256_init();
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CYBOZU_TEST_EQUAL(ret, 0);
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}
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CYBOZU_TEST_AUTO(Fr)
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{
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BN256_Fr x, y;
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memset(&x, 0xff, sizeof(x));
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CYBOZU_TEST_ASSERT(!BN256_Fr_isValid(&x));
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memset(&x, 1, sizeof(x));
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CYBOZU_TEST_ASSERT(BN256_Fr_isValid(&x));
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CYBOZU_TEST_ASSERT(!BN256_Fr_isZero(&x));
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BN256_Fr_clear(&x);
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CYBOZU_TEST_ASSERT(BN256_Fr_isZero(&x));
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BN256_Fr_setInt(&x, 1);
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CYBOZU_TEST_ASSERT(BN256_Fr_isOne(&x));
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BN256_Fr_setInt(&y, -1);
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CYBOZU_TEST_ASSERT(!BN256_Fr_isSame(&x, &y));
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BN256_Fr_copy(&y, &x);
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CYBOZU_TEST_ASSERT(BN256_Fr_isSame(&x, &y));
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BN256_Fr_setMsg(&x, "");
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BN256_Fr_setMsg(&y, "abc");
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CYBOZU_TEST_ASSERT(!BN256_Fr_isSame(&x, &y));
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BN256_Fr_setMsg(&x, "abc");
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CYBOZU_TEST_ASSERT(BN256_Fr_isSame(&x, &y));
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char buf[1024];
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BN256_Fr_setInt(&x, 12345678);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "12345678");
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BN256_Fr_setInt(&x, -7654321);
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BN256_Fr_neg(&x, &x);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "7654321");
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BN256_Fr_setInt(&y, 123 - 7654321);
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BN256_Fr_add(&x, &x, &y);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "123");
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BN256_Fr_setInt(&y, 100);
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BN256_Fr_sub(&x, &x, &y);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "23");
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BN256_Fr_mul(&x, &x, &y);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "2300");
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BN256_Fr_div(&x, &x, &y);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "23");
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CYBOZU_TEST_ASSERT(!BN256_Fr_setStr(&x, "12345678901234567"));
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CYBOZU_TEST_ASSERT(!BN256_Fr_setStr(&y, "20000000000000000"));
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BN256_Fr_add(&x, &x, &y);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "32345678901234567");
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BN256_Fr_setInt(&x, 1);
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BN256_Fr_neg(&x, &x);
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CYBOZU_TEST_ASSERT(!BN256_Fr_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_ASSERT(!BN256_Fr_setStr(&y, buf));
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CYBOZU_TEST_ASSERT(BN256_Fr_isSame(&x, &y));
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}
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CYBOZU_TEST_AUTO(G1)
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{
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BN256_G1 x, y, z;
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memset(&x, 0xff, sizeof(x));
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CYBOZU_TEST_ASSERT(!BN256_G1_isValid(&x));
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BN256_G1_clear(&x);
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CYBOZU_TEST_ASSERT(BN256_G1_isValid(&x));
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BN256_G1_setStr(&y, "0");
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CYBOZU_TEST_ASSERT(BN256_G1_isZero(&x));
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CYBOZU_TEST_ASSERT(BN256_G1_isZero(&y));
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CYBOZU_TEST_ASSERT(!BN256_G1_setStr(&y, "1 -1 1")); // "1 <x> <y>"
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CYBOZU_TEST_ASSERT(!BN256_G1_isZero(&y));
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char buf[1024];
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CYBOZU_TEST_ASSERT(!BN256_G1_getStr(buf, sizeof(buf), &y));
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CYBOZU_TEST_ASSERT(!BN256_G1_setStr(&x, buf));
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CYBOZU_TEST_ASSERT(BN256_G1_isSame(&x, &y));
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CYBOZU_TEST_ASSERT(!BN256_G1_setStr(&x, "1 -1 -1")); // "1 <x> <y>"
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CYBOZU_TEST_ASSERT(!BN256_G1_isZero(&x));
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BN256_G1_add(&x, &x, &y);
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CYBOZU_TEST_ASSERT(BN256_G1_isZero(&x));
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CYBOZU_TEST_ASSERT(!BN256_G1_setStr(&x, "1 -1 -1")); // "1 <x> <y>"
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BN256_G1_neg(&x, &x);
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CYBOZU_TEST_ASSERT(BN256_G1_isSame(&x, &y));
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CYBOZU_TEST_ASSERT(!BN256_G1_hashAndMapTo(&y, "abc"));
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BN256_G1_dbl(&x, &y); // x = 2y
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BN256_G1_add(&z, &y, &y);
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CYBOZU_TEST_ASSERT(BN256_G1_isSame(&x, &z));
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BN256_G1_add(&z, &z, &y); // z = 3y
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BN256_Fr n;
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BN256_Fr_setInt(&n, 3);
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BN256_G1_mul(&x, &y, &n); // x = 3y
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CYBOZU_TEST_ASSERT(BN256_G1_isSame(&x, &z));
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BN256_G1_sub(&x, &x, &y); // x = 2y
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BN256_Fr_setInt(&n, 2);
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BN256_G1_mul(&z, &y, &n); // z = 2y
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CYBOZU_TEST_ASSERT(BN256_G1_isSame(&x, &z));
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}
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CYBOZU_TEST_AUTO(G2)
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{
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BN256_G2 x, y, z;
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memset(&x, 0xff, sizeof(x));
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CYBOZU_TEST_ASSERT(!BN256_G2_isValid(&x));
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BN256_G2_clear(&x);
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CYBOZU_TEST_ASSERT(BN256_G2_isValid(&x));
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BN256_G2_setStr(&y, "0");
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CYBOZU_TEST_ASSERT(BN256_G2_isZero(&x));
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CYBOZU_TEST_ASSERT(BN256_G2_isZero(&y));
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CYBOZU_TEST_ASSERT(!BN256_G2_hashAndMapTo(&x, "abc"));
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char buf[1024];
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CYBOZU_TEST_ASSERT(!BN256_G2_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_ASSERT(!BN256_G2_setStr(&y, buf));
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CYBOZU_TEST_ASSERT(BN256_G2_isSame(&x, &y));
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BN256_G2_neg(&x, &x);
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BN256_G2_add(&x, &x, &y);
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CYBOZU_TEST_ASSERT(BN256_G2_isZero(&x));
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BN256_G2_dbl(&x, &y); // x = 2y
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BN256_G2_add(&z, &y, &y);
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CYBOZU_TEST_ASSERT(BN256_G2_isSame(&x, &z));
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BN256_G2_add(&z, &z, &y); // z = 3y
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BN256_Fr n;
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BN256_Fr_setInt(&n, 3);
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BN256_G2_mul(&x, &y, &n); // x = 3y
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CYBOZU_TEST_ASSERT(BN256_G2_isSame(&x, &z));
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BN256_G2_sub(&x, &x, &y); // x = 2y
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BN256_Fr_setInt(&n, 2);
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BN256_G2_mul(&z, &y, &n); // z = 2y
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CYBOZU_TEST_ASSERT(BN256_G2_isSame(&x, &z));
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}
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CYBOZU_TEST_AUTO(GT)
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{
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BN256_GT x, y, z;
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memset(&x, 1, sizeof(x));
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CYBOZU_TEST_ASSERT(!BN256_GT_isZero(&x));
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BN256_GT_clear(&x);
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CYBOZU_TEST_ASSERT(BN256_GT_isZero(&x));
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char buf[1024];
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CYBOZU_TEST_ASSERT(!BN256_GT_setStr(&x, "1 2 3 4 5 6 7 8 9 10 11 12"));
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CYBOZU_TEST_ASSERT(!BN256_GT_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_EQUAL(buf, "1 2 3 4 5 6 7 8 9 10 11 12");
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BN256_GT_copy(&y, &x);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&x, &y));
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CYBOZU_TEST_ASSERT(!BN256_GT_setStr(&z, "-1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12"));
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CYBOZU_TEST_ASSERT(!BN256_GT_getStr(buf, sizeof(buf), &z));
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CYBOZU_TEST_ASSERT(!BN256_GT_setStr(&y, buf));
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BN256_GT_neg(&z, &y);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&x, &z));
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BN256_GT_add(&y, &x, &y);
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CYBOZU_TEST_ASSERT(BN256_GT_isZero(&y));
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CYBOZU_TEST_ASSERT(!BN256_GT_setStr(&y, "2 0 0 0 0 0 0 0 0 0 0 0"));
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BN256_GT_mul(&z, &x, &y);
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CYBOZU_TEST_ASSERT(!BN256_GT_getStr(buf, sizeof(buf), &z));
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CYBOZU_TEST_EQUAL(buf, "2 4 6 8 10 12 14 16 18 20 22 24");
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BN256_GT_div(&z, &z, &y);
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CYBOZU_TEST_ASSERT(!BN256_GT_getStr(buf, sizeof(buf), &x));
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&x, &z));
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BN256_Fr n;
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BN256_Fr_setInt(&n, 3);
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BN256_GT_pow(&z, &x, &n);
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BN256_GT_mul(&y, &x, &x);
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BN256_GT_mul(&y, &y, &x);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&y, &z));
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}
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CYBOZU_TEST_AUTO(pairing)
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{
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BN256_Fr a, b, ab;
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BN256_Fr_setInt(&a, 123);
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BN256_Fr_setInt(&b, 456);
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BN256_Fr_mul(&ab, &a, &b);
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BN256_G1 P, aP;
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BN256_G2 Q, bQ;
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BN256_GT e, e1, e2;
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CYBOZU_TEST_ASSERT(!BN256_G1_setStr(&P, "1 -1 1")); // "1 <x> <y>"
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CYBOZU_TEST_ASSERT(!BN256_G2_hashAndMapTo(&Q, "1"));
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BN256_G1_mul(&aP, &P, &a);
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BN256_G2_mul(&bQ, &Q, &b);
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BN256_pairing(&e, &P, &Q);
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BN256_GT_pow(&e1, &e, &a);
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BN256_pairing(&e2, &aP, &Q);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&e1, &e2));
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BN256_GT_pow(&e1, &e, &b);
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BN256_pairing(&e2, &P, &bQ);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&e1, &e2));
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}
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CYBOZU_TEST_AUTO(precomputed)
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{
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BN256_G1 P1, P2;
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BN256_G2 Q1, Q2;
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CYBOZU_TEST_ASSERT(!BN256_G1_setStr(&P1, "1 -1 1")); // "1 <x> <y>"
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CYBOZU_TEST_ASSERT(!BN256_G1_hashAndMapTo(&P2, "123"));
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CYBOZU_TEST_ASSERT(!BN256_G2_hashAndMapTo(&Q1, "1"));
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CYBOZU_TEST_ASSERT(!BN256_G2_hashAndMapTo(&Q2, "2"));
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const int size = BN256_getUint64NumToPrecompute();
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std::vector<uint64_t> Q1buf, Q2buf;
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Q1buf.resize(size);
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Q2buf.resize(size);
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BN256_precomputeG2(Q1buf.data(), &Q1);
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BN256_precomputeG2(Q2buf.data(), &Q2);
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BN256_GT e1, e2, f1, f2, f3;
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BN256_pairing(&e1, &P1, &Q1);
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BN256_precomputedMillerLoop(&f1, &P1, Q1buf.data());
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BN256_GT_finalExp(&f1, &f1);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&e1, &f1));
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BN256_pairing(&e2, &P2, &Q2);
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BN256_precomputedMillerLoop(&f2, &P2, Q2buf.data());
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BN256_GT_finalExp(&f2, &f2);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&e2, &f2));
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BN256_precomputedMillerLoop2(&f3, &P1, Q1buf.data(), &P2, Q2buf.data());
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BN256_GT_finalExp(&f3, &f3);
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BN256_GT_mul(&e1, &e1, &e2);
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CYBOZU_TEST_ASSERT(BN256_GT_isSame(&e1, &f3));
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}
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CYBOZU_TEST_AUTO(end)
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{
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int ret = BN256_setErrFile("");
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CYBOZU_TEST_EQUAL(ret, 0);
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}
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