#include <bls.hpp>
#include <cybozu/test.hpp>
#include <iostream>
#include <sstream>
template<class T>
void streamTest(const T& t)
{
std::ostringstream oss;
oss << t;
std::istringstream iss(oss.str());
T t2;
iss >> t2;
CYBOZU_TEST_EQUAL(t, t2);
}
CYBOZU_TEST_AUTO(bls)
{
bls::init();
bls::SecretKey sec;
sec.init();
streamTest(sec);
bls::PublicKey pub;
sec.getPublicKey(pub);
streamTest(pub);
for (int i = 0; i < 5; i++) {
std::string m = "hello";
m += char('0' + i);
bls::Sign s;
sec.sign(s, m);
CYBOZU_TEST_ASSERT(s.verify(pub, m));
CYBOZU_TEST_ASSERT(!s.verify(pub, m + "a"));
streamTest(s);
}
}
CYBOZU_TEST_AUTO(id)
{
bls::Id id;
CYBOZU_TEST_ASSERT(id.isZero());
id = 5;
CYBOZU_TEST_EQUAL(id, 5);
{
const uint64_t id1[] = { 1, 2, 3, 4 };
id.set(id1);
std::ostringstream os;
os << id;
CYBOZU_TEST_EQUAL(os.str(), "0x4000000000000000300000000000000020000000000000001");
}
{
/*
exception if the value >= r
*/
const uint64_t id1[] = { 0, 0, 0, uint64_t(-1) };
CYBOZU_TEST_EXCEPTION(id.set(id1), std::exception);
}
}
CYBOZU_TEST_AUTO(k_of_n)
{
const std::string m = "abc";
const int n = 5;
const int k = 3;
bls::SecretKey sec0;
sec0.init();
bls::Sign s0;
sec0.sign(s0, m);
bls::PublicKey pub0;
sec0.getPublicKey(pub0);
CYBOZU_TEST_ASSERT(s0.verify(pub0, m));
bls::SecretKeyVec msk;
sec0.getMasterSecretKey(msk, k);
std::vector<const bls::SecretKey*> pmsk(k);
for (size_t i = 0; i < k; i++) {
pmsk[i] = &msk[i];
}
bls::SecretKeyVec allPrvVec(n);
bls::IdVec allIdVec(n);
for (int i = 0; i < n; i++) {
int id = i + 1;
allPrvVec[i].set(msk, id);
allIdVec[i] = id;
bls::SecretKey p;
p.set(&pmsk[0], k, id);
CYBOZU_TEST_EQUAL(allPrvVec[i], p);
}
bls::SignVec allSignVec(n);
for (int i = 0; i < n; i++) {
CYBOZU_TEST_ASSERT(allPrvVec[i] != sec0);
allPrvVec[i].sign(allSignVec[i], m);
bls::PublicKey pub;
allPrvVec[i].getPublicKey(pub);
CYBOZU_TEST_ASSERT(pub != pub0);
CYBOZU_TEST_ASSERT(allSignVec[i].verify(pub, m));
}
/*
3-out-of-n
can recover
*/
bls::SecretKeyVec secVec(3);
bls::IdVec idVec(3);
std::vector<const bls::SecretKey*> psec(secVec.size());
std::vector<const bls::Id*> pid(idVec.size());
for (int a = 0; a < n; a++) {
secVec[0] = allPrvVec[a];
idVec[0] = allIdVec[a];
psec[0] = &secVec[0];
pid[0] = &idVec[0];
for (int b = a + 1; b < n; b++) {
secVec[1] = allPrvVec[b];
idVec[1] = allIdVec[b];
psec[1] = &secVec[1];
pid[1] = &idVec[1];
for (int c = b + 1; c < n; c++) {
secVec[2] = allPrvVec[c];
idVec[2] = allIdVec[c];
psec[2] = &secVec[2];
pid[2] = &idVec[2];
bls::SecretKey sec;
sec.recover(secVec, idVec);
CYBOZU_TEST_EQUAL(sec, sec0);
bls::SecretKey sec2;
sec2.recover(&psec[0], &pid[0], psec.size());
CYBOZU_TEST_EQUAL(sec, sec2);
}
}
}
{
secVec[0] = allPrvVec[0];
secVec[1] = allPrvVec[1];
secVec[2] = allPrvVec[0]; // same of secVec[0]
idVec[0] = allIdVec[0];
idVec[1] = allIdVec[1];
idVec[2] = allIdVec[0];
bls::SecretKey sec;
CYBOZU_TEST_EXCEPTION_MESSAGE(sec.recover(secVec, idVec), std::exception, "same id");
}
{
/*
n-out-of-n
can recover
*/
bls::SecretKey sec;
sec.recover(allPrvVec, allIdVec);
CYBOZU_TEST_EQUAL(sec, sec0);
}
/*
2-out-of-n
can't recover
*/
secVec.resize(2);
idVec.resize(2);
for (int a = 0; a < n; a++) {
secVec[0] = allPrvVec[a];
idVec[0] = allIdVec[a];
for (int b = a + 1; b < n; b++) {
secVec[1] = allPrvVec[b];
idVec[1] = allIdVec[b];
bls::SecretKey sec;
sec.recover(secVec, idVec);
CYBOZU_TEST_ASSERT(sec != sec0);
}
}
/*
3-out-of-n
can recover
*/
bls::SignVec signVec(3);
idVec.resize(3);
for (int a = 0; a < n; a++) {
signVec[0] = allSignVec[a];
idVec[0] = allIdVec[a];
for (int b = a + 1; b < n; b++) {
signVec[1] = allSignVec[b];
idVec[1] = allIdVec[b];
for (int c = b + 1; c < n; c++) {
signVec[2] = allSignVec[c];
idVec[2] = allIdVec[c];
bls::Sign s;
s.recover(signVec, idVec);
CYBOZU_TEST_EQUAL(s, s0);
}
}
}
{
/*
n-out-of-n
can recover
*/
bls::Sign s;
s.recover(allSignVec, allIdVec);
CYBOZU_TEST_EQUAL(s, s0);
}
/*
2-out-of-n
can't recover
*/
signVec.resize(2);
idVec.resize(2);
for (int a = 0; a < n; a++) {
signVec[0] = allSignVec[a];
idVec[0] = allIdVec[a];
for (int b = a + 1; b < n; b++) {
signVec[1] = allSignVec[b];
idVec[1] = allIdVec[b];
bls::Sign s;
s.recover(signVec, idVec);
CYBOZU_TEST_ASSERT(s != s0);
}
}
// share and recover publicKey
{
bls::PublicKeyVec pubVec(k);
idVec.resize(k);
std::vector<const bls::PublicKey*> ppub(k);
std::vector<const bls::Id*> pid(k);
// select [0, k) publicKey
for (int i = 0; i < k; i++) {
allPrvVec[i].getPublicKey(pubVec[i]);
idVec[i] = allIdVec[i];
ppub[i] = &pubVec[i];
pid[i] = &idVec[i];
}
bls::PublicKey pub;
pub.recover(pubVec, idVec);
CYBOZU_TEST_EQUAL(pub, pub0);
bls::PublicKey pub2;
pub2.recover(&ppub[0], &pid[0], ppub.size());
CYBOZU_TEST_EQUAL(pub, pub2);
}
}
CYBOZU_TEST_AUTO(pop)
{
const size_t k = 3;
const size_t n = 6;
const std::string m = "pop test";
bls::SecretKey sec0;
sec0.init();
bls::PublicKey pub0;
sec0.getPublicKey(pub0);
bls::Sign s0;
sec0.sign(s0, m);
CYBOZU_TEST_ASSERT(s0.verify(pub0, m));
bls::SecretKeyVec msk;
sec0.getMasterSecretKey(msk, k);
bls::PublicKeyVec mpk;
bls::getMasterPublicKey(mpk, msk);
bls::SignVec popVec;
bls::getPopVec(popVec, msk);
for (size_t i = 0; i < popVec.size(); i++) {
CYBOZU_TEST_ASSERT(popVec[i].verify(mpk[i]));
}
const int idTbl[n] = {
3, 5, 193, 22, 15
};
bls::SecretKeyVec secVec(n);
bls::PublicKeyVec pubVec(n);
bls::SignVec sVec(n);
for (size_t i = 0; i < n; i++) {
int id = idTbl[i];
secVec[i].set(msk, id);
secVec[i].getPublicKey(pubVec[i]);
bls::PublicKey pub;
pub.set(mpk, id);
CYBOZU_TEST_EQUAL(pubVec[i], pub);
bls::Sign pop;
secVec[i].getPop(pop);
CYBOZU_TEST_ASSERT(pop.verify(pubVec[i]));
secVec[i].sign(sVec[i], m);
CYBOZU_TEST_ASSERT(sVec[i].verify(pubVec[i], m));
}
secVec.resize(k);
sVec.resize(k);
bls::IdVec idVec(k);
for (size_t i = 0; i < k; i++) {
idVec[i] = idTbl[i];
}
bls::SecretKey sec;
sec.recover(secVec, idVec);
CYBOZU_TEST_EQUAL(sec, sec0);
bls::Sign s;
s.recover(sVec, idVec);
CYBOZU_TEST_EQUAL(s, s0);
std::vector<const bls::Sign*> ps(sVec.size());
for (size_t i = 0; i < ps.size(); i++) {
ps[i] = &sVec[i];
}
std::vector<const bls::Id*> pid(idVec.size());
for (size_t i = 0; i < pid.size(); i++) {
pid[i] = &idVec[i];
}
bls::Sign s2;
s2.recover(&ps[0], &pid[0], ps.size());
CYBOZU_TEST_EQUAL(s, s2);
}
CYBOZU_TEST_AUTO(add)
{
bls::SecretKey sec1, sec2;
sec1.init();
sec2.init();
CYBOZU_TEST_ASSERT(sec1 != sec2);
bls::PublicKey pub1, pub2;
sec1.getPublicKey(pub1);
sec2.getPublicKey(pub2);
const std::string m = "doremi";
bls::Sign s1, s2;
sec1.sign(s1, m);
sec2.sign(s2, m);
CYBOZU_TEST_ASSERT((s1 + s2).verify(pub1 + pub2, m));
}