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#include <bls.hpp>
#include <iostream>
#include <cybozu/option.hpp>
template<class T>
void write(const T& t)
{
std::cout << std::hex << std::showbase << t << std::endl;
}
template<class T>
void read(T& t)
{
if (!(std::cin >> t)) {
throw std::runtime_error("can't read");
}
}
void strip(std::string& str)
{
if (str.empty()) return;
if (str[str.size() - 1] == '\n') str.resize(str.size() - 1);
}
void readMessage(std::string& str)
{
str.clear();
std::string line;
std::getline(std::cin, line); // remove first blank line
while (std::getline(std::cin, line)) {
if (!str.empty()) str += '\n';
str += line;
}
strip(str);
if (!str.empty()) return;
throw std::runtime_error("readMessage:message is empty");
}
bool g_verbose = false;
void init()
{
if (g_verbose) fprintf(stderr, "init\n");
bls::SecretKey sec;
sec.init();
write(sec);
}
void pubkey()
{
if (g_verbose) fprintf(stderr, "pubkey\n");
bls::SecretKey sec;
read(sec);
if (g_verbose) std::cerr << "sec:" << sec << std::endl;
bls::PublicKey pub;
sec.getPublicKey(pub);
if (g_verbose) std::cerr << "pub:" << pub << std::endl;
write(pub);
}
void sign()
{
if (g_verbose) fprintf(stderr, "sign\n");
bls::SecretKey sec;
read(sec);
if (g_verbose) std::cerr << "sec:" << sec << std::endl;
std::string m;
readMessage(m);
if (g_verbose) fprintf(stderr, "message:`%s`\n", m.c_str());
bls::Sign s;
sec.sign(s, m);
write(s);
}
void verify()
{
if (g_verbose) fprintf(stderr, "verify\n");
bls::Sign s;
read(s);
if (g_verbose) std::cerr << "sign:" << s << std::endl;
bls::PublicKey pub;
read(pub);
if (g_verbose) std::cerr << "pub:" << pub << std::endl;
std::string m;
readMessage(m);
if (g_verbose) fprintf(stderr, "message:`%s`\n", m.c_str());
bool b = s.verify(pub, m);
write(b ? "1" : "0");
}
void share_pub()
{
if (g_verbose) fprintf(stderr, "share_pub\n");
size_t k;
read(k);
if (g_verbose) fprintf(stderr, "k:%d\n", (int)k);
bls::PublicKeyVec mpk(k);
for (size_t i = 0; i < k; i++) {
read(mpk[i]);
}
bls::Id id;
read(id);
if (g_verbose) std::cerr << "id:" << id << std::endl;
bls::PublicKey pub;
pub.set(mpk, id);
write(pub);
}
void recover_sig()
{
if (g_verbose) fprintf(stderr, "recover_sig\n");
size_t k;
read(k);
if (g_verbose) fprintf(stderr, "k:%d\n", (int)k);
bls::SignatureVec sVec(k);
bls::IdVec idVec(k);
for (size_t i = 0; i < k; i++) {
read(idVec[i]);
read(sVec[i]);
}
bls::Sign s;
s.recover(sVec, idVec);
write(s);
}
void aggregate_pub()
{
if (g_verbose) fprintf(stderr, "aggregate_pub\n");
size_t n;
read(n);
if (n == 0) throw std::runtime_error("aggregate_pub:n is zero");
if (g_verbose) fprintf(stderr, "n:%d\n", (int)n);
bls::PublicKey pub;
read(pub);
if (g_verbose) std::cerr << "pub:" << pub << std::endl;
for (size_t i = 1; i < n; i++) {
bls::PublicKey rhs;
read(rhs);
pub.add(rhs);
}
write(pub);
}
void aggregate_sig()
{
if (g_verbose) fprintf(stderr, "aggregate_sig\n");
size_t n;
read(n);
if (n == 0) throw std::runtime_error("aggregate_sig:n is zero");
if (g_verbose) fprintf(stderr, "n:%d\n", (int)n);
bls::Sign s;
read(s);
if (g_verbose) std::cerr << "sign:" << s << std::endl;
for (size_t i = 1; i < n; i++) {
bls::Sign rhs;
read(rhs);
s.add(rhs);
}
write(s);
}
int main(int argc, char *argv[])
try
{
const struct CmdTbl {
const char *name;
void (*exec)();
} tbl[] = {
{ "init", init },
{ "pubkey", pubkey },
{ "sign", sign },
{ "verify", verify },
{ "share-pub", share_pub },
{ "recover-sig", recover_sig },
{ "aggregate-pub", aggregate_pub },
{ "aggregate-sig", aggregate_sig },
};
std::string cmdCat;
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
if (i > 0) cmdCat += '|';
cmdCat += tbl[i].name;
}
std::string mode;
cybozu::Option opt;
opt.appendParam(&mode, cmdCat.c_str());
opt.appendBoolOpt(&g_verbose, "v", ": verbose");
opt.appendHelp("h");
if (!opt.parse(argc, argv)) {
goto ERR_EXIT;
}
bls::init();
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
if (mode == tbl[i].name) {
tbl[i].exec();
return 0;
}
}
fprintf(stderr, "bad mode %s\n", mode.c_str());
ERR_EXIT:
opt.usage();
return 1;
} catch (std::exception& e) {
fprintf(stderr, "ERR %s\n", e.what());
return 1;
}
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