path: root/test/bls_c384_test.cpp

#include <cybozu/test.hpp>
#include <cybozu/inttype.hpp>
#include <bls/bls.h>
#include <string.h>

void bls_use_stackTest()
{
    blsSecretKey sec;
    blsPublicKey pub;
    blsSignature sig;
    const char *msg = "this is a pen";
    const size_t msgSize = strlen(msg);

    blsSecretKeySetByCSPRNG(&sec);

    blsGetPublicKey(&pub, &sec);

    blsSign(&sig, &sec, msg, msgSize);

    CYBOZU_TEST_ASSERT(blsVerify(&sig, &pub, msg, msgSize));
}

void blsDataTest()
{
    const char *msg = "test test";
    const size_t msgSize = strlen(msg);
    const size_t fpSize = blsGetOpUnitSize() * sizeof(uint64_t);
    blsSecretKey sec1, sec2;
    blsSecretKeySetByCSPRNG(&sec1);
    char buf[1024];
    size_t n;
    int ret;
    n = blsSecretKeyGetHexStr(buf, sizeof(buf), &sec1);
    CYBOZU_TEST_ASSERT(0 < n && n <= fpSize * 2);
    ret = blsSecretKeySetHexStr(&sec2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsSecretKeyIsEqual(&sec1, &sec2));

    memset(&sec2, 0, sizeof(sec2));
    n = blsSecretKeySerialize(buf, sizeof(buf), &sec1);
    CYBOZU_TEST_EQUAL(n, fpSize);
    ret = blsSecretKeyDeserialize(&sec2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsSecretKeyIsEqual(&sec1, &sec2));

    blsPublicKey pub1, pub2;
    blsGetPublicKey(&pub1, &sec1);
    n = blsPublicKeySerialize(buf, sizeof(buf), &pub1);
    CYBOZU_TEST_EQUAL(n, fpSize * 2);
    ret = blsPublicKeyDeserialize(&pub2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsPublicKeyIsEqual(&pub1, &pub2));
    blsSignature sig1, sig2;
    blsSign(&sig1, &sec1, msg, msgSize);
    n = blsSignatureSerialize(buf, sizeof(buf), &sig1);
    CYBOZU_TEST_EQUAL(n, fpSize);
    ret = blsSignatureDeserialize(&sig2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsSignatureIsEqual(&sig1, &sig2));
}

void blsOrderTest(const char *curveOrder, const char *fieldOrder)
{
    char buf[1024];
    size_t len;
    len = blsGetCurveOrder(buf, sizeof(buf));
    CYBOZU_TEST_ASSERT(len > 0);
    CYBOZU_TEST_EQUAL(buf, curveOrder);
    len = blsGetFieldOrder(buf, sizeof(buf));
    CYBOZU_TEST_ASSERT(len > 0);
    CYBOZU_TEST_EQUAL(buf, fieldOrder);
}

#if defined(CYBOZU_CPP_VERSION) && CYBOZU_CPP_VERSION >= CYBOZU_CPP_VERSION_CPP11
#include <thread>
#include <vector>
struct Thread {
    std::unique_ptr<std::thread> t;
    Thread() : t() {}
    ~Thread()
    {
        if (t) {
            t->join();
        }
    }
    template<class F>
    void run(F func, int p1, int p2)
    {
        t.reset(new std::thread(func, p1, p2));
    }
};
CYBOZU_TEST_AUTO(multipleInit)
{
    const size_t n = 100;
    {
        std::vector<Thread> vt(n);
        for (size_t i = 0; i < n; i++) {
            vt[i].run(blsInit, mclBn_CurveFp254BNb, MCLBN_FP_UNIT_SIZE);
        }
    }
    CYBOZU_TEST_EQUAL(blsGetOpUnitSize(), 4u);
#if MCLBN_FP_UNIT_SIZE == 6
    {
        std::vector<Thread> vt(n);
        for (size_t i = 0; i < n; i++) {
            vt[i].run(blsInit, mclBn_CurveFp382_1, MCLBN_FP_UNIT_SIZE);
        }
    }
    CYBOZU_TEST_EQUAL(blsGetOpUnitSize(), 6u);
#endif
}
#endif

void blsSerializeTest()
{
    const size_t opUnitSize = mclBn_getOpUnitSize();
    printf("opUnitSize=%d\n", (int)opUnitSize);
    blsId id1, id2;
    blsSecretKey sec1, sec2;
    blsPublicKey pub1, pub2;
    blsSignature sig1, sig2;
    char buf[1024];
    size_t n;
    size_t expectSize;
    int ret;
    const char dummyChar = '1';

    // Id
    expectSize = opUnitSize * 8;
    blsIdSetInt(&id1, -1);
    n = blsIdSerialize(buf, sizeof(buf), &id1);
    CYBOZU_TEST_EQUAL(n, expectSize);

    ret = blsIdDeserialize(&id2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsIdIsEqual(&id1, &id2));

    ret = blsIdDeserialize(&id2, buf, n - 1);
    CYBOZU_TEST_ASSERT(ret != 0);

    memset(&id2, 0, sizeof(id2));
    buf[n] = dummyChar;
    ret = blsIdDeserialize(&id2, buf, n + 1);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsIdIsEqual(&id1, &id2));

    n = blsIdSerialize(buf, expectSize, &id1);
    CYBOZU_TEST_EQUAL(n, expectSize);

    // SecretKey
    expectSize = opUnitSize * 8;
    blsSecretKeySetDecStr(&sec1, "-1", 2);
    n = blsSecretKeySerialize(buf, sizeof(buf), &sec1);
    CYBOZU_TEST_EQUAL(n, expectSize);

    ret = blsSecretKeyDeserialize(&sec2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsSecretKeyIsEqual(&sec1, &sec2));

    ret = blsSecretKeyDeserialize(&sec2, buf, n - 1);
    CYBOZU_TEST_ASSERT(ret != 0);

    memset(&sec2, 0, sizeof(sec2));
    buf[n] = dummyChar;
    ret = blsSecretKeyDeserialize(&sec2, buf, n + 1);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsSecretKeyIsEqual(&sec1, &sec2));

    n = blsSecretKeySerialize(buf, expectSize, &sec1);
    CYBOZU_TEST_EQUAL(n, expectSize);

    // PublicKey
    expectSize = opUnitSize * 8 * 2;
    blsGetPublicKey(&pub1, &sec1);
    n = blsPublicKeySerialize(buf, sizeof(buf), &pub1);
    CYBOZU_TEST_EQUAL(n, expectSize);

    ret = blsPublicKeyDeserialize(&pub2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsPublicKeyIsEqual(&pub1, &pub2));

    ret = blsPublicKeyDeserialize(&pub2, buf, n - 1);
    CYBOZU_TEST_ASSERT(ret != 0);

    memset(&pub2, 0, sizeof(pub2));
    buf[n] = dummyChar;
    ret = blsPublicKeyDeserialize(&pub2, buf, n + 1);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsPublicKeyIsEqual(&pub1, &pub2));

    n = blsPublicKeySerialize(buf, expectSize, &pub1);
    CYBOZU_TEST_EQUAL(n, expectSize);

    // Signature
    expectSize = opUnitSize * 8;
    blsSign(&sig1, &sec1, "abc", 3);
    n = blsSignatureSerialize(buf, sizeof(buf), &sig1);
    CYBOZU_TEST_EQUAL(n, expectSize);

    ret = blsSignatureDeserialize(&sig2, buf, n);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsSignatureIsEqual(&sig1, &sig2));

    ret = blsSignatureDeserialize(&sig2, buf, n - 1);
    CYBOZU_TEST_ASSERT(ret != 0);

    memset(&sig2, 0, sizeof(sig2));
    buf[n] = dummyChar;
    ret = blsSignatureDeserialize(&sig2, buf, n + 1);
    CYBOZU_TEST_EQUAL(ret, 0);
    CYBOZU_TEST_ASSERT(blsSignatureIsEqual(&sig1, &sig2));

    n = blsSignatureSerialize(buf, expectSize, &sig1);
    CYBOZU_TEST_EQUAL(n, expectSize);
}

CYBOZU_TEST_AUTO(all)
{
    const int tbl[] = {
        mclBn_CurveFp254BNb,
#if MCLBN_FP_UNIT_SIZE == 6
        mclBn_CurveFp382_1,
        mclBn_CurveFp382_2
#endif
    };
    const char *curveOrderTbl[] = {
        "16798108731015832284940804142231733909759579603404752749028378864165570215949",
        "5540996953667913971058039301942914304734176495422447785042938606876043190415948413757785063597439175372845535461389",
        "5541245505022739011583672869577435255026888277144126952448297309161979278754528049907713682488818304329661351460877",
    };
    const char *fieldOrderTbl[] = {
        "16798108731015832284940804142231733909889187121439069848933715426072753864723",
        "5540996953667913971058039301942914304734176495422447785045292539108217242186829586959562222833658991069414454984723",
        "5541245505022739011583672869577435255026888277144126952450651294188487038640194767986566260919128250811286032482323",
    };
    for (size_t i = 0; i < sizeof(tbl) / sizeof(tbl[0]); i++) {
        printf("i=%d\n", (int)i);
        blsInit(tbl[i], MCLBN_FP_UNIT_SIZE);
        bls_use_stackTest();
        blsDataTest();
        blsOrderTest(curveOrderTbl[i], fieldOrderTbl[i]);
        blsSerializeTest();
    }
}