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70 lines
1.5 KiB
70 lines
1.5 KiB
#include <cybozu/test.hpp>
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#include <mcl/window_method.hpp>
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#include <mcl/ec.hpp>
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#include <mcl/fp.hpp>
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#include <mcl/ecparam.hpp>
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CYBOZU_TEST_AUTO(ArrayIterator)
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{
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const uint32_t in[2] = { 0x12345678, 0xabcdef89 };
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const size_t bitSize = 64;
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for (size_t w = 1; w <= 32; w++) {
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const uint32_t mask = uint32_t((uint64_t(1) << w) - 1);
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mpz_class x;
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mcl::gmp::setArray(x, in, 2);
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mcl::fp::ArrayIterator<uint32_t> ai(in, bitSize, w);
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size_t n = (bitSize + w - 1) / w;
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for (size_t j = 0; j < n; j++) {
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CYBOZU_TEST_ASSERT(ai.hasNext());
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uint32_t v = ai.getNext();
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CYBOZU_TEST_EQUAL(v, x & mask);
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x >>= w;
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}
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CYBOZU_TEST_ASSERT(!ai.hasNext());
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}
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}
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CYBOZU_TEST_AUTO(int)
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{
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typedef mcl::FpT<> Fp;
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typedef mcl::EcT<Fp> Ec;
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const struct mcl::EcParam& para = mcl::ecparam::secp192k1;
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Fp::init(para.p);
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Ec::init(para.a, para.b);
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const Fp x(para.gx);
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const Fp y(para.gy);
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const Ec P(x, y);
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typedef mcl::fp::WindowMethod<Ec> PW;
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const size_t bitSize = 13;
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Ec Q, R;
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for (size_t winSize = 10; winSize <= bitSize; winSize++) {
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PW pw(P, bitSize, winSize);
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for (int i = 0; i < (1 << bitSize); i++) {
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pw.mul(Q, i);
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Ec::mul(R, P, i);
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CYBOZU_TEST_EQUAL(Q, R);
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}
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}
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PW pw(P, para.bitSize, 10);
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pw.mul(Q, -12345);
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Ec::mul(R, P, -12345);
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CYBOZU_TEST_EQUAL(Q, R);
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mpz_class t(para.gx);
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pw.mul(Q, t);
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Ec::mul(R, P, t);
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CYBOZU_TEST_EQUAL(Q, R);
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t = -t;
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pw.mul(Q, t);
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Ec::mul(R, P, t);
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CYBOZU_TEST_EQUAL(Q, R);
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pw.mul(Q, x);
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Ec::mul(R, P, x);
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CYBOZU_TEST_EQUAL(Q, R);
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pw.mul(Q, y);
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Ec::mul(R, P, y);
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CYBOZU_TEST_EQUAL(Q, R);
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}
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