static void Main(string[] args)
{
byte[] privKey;
if (File.Exists("privkey.hex"))
{
privKey = File.ReadAllBytes("privkey.hex");
}
else
{
privKey = Oracle.GenerateOneTimeSigningKey();
File.WriteAllBytes("privkey.hex", privKey);
}
byte[] pubKey = Oracle.PublicKeyFromPrivateKey(privKey);
Console.WriteLine("Oracle Public Key: {0}", BitConverter.ToString(pubKey).Replace("-", ""));
while (true)
{
byte[] privPoint = Oracle.GenerateOneTimeSigningKey();
Console.WriteLine("PrivPoint for next publication: {0}", BitConverter.ToString(privPoint).Replace("-", ""));
byte[] rPoint = Oracle.PublicKeyFromPrivateKey(privPoint);
Console.WriteLine("R-Point for next publication: {0}", BitConverter.ToString(rPoint).Replace("-", ""));
Console.Write("Enter number to publish (-1 to exit):");
var input = Console.ReadLine();
long value = 0;
if (!long.TryParse(input, out value))
{
Console.WriteLine("Couldn't parse input.");
continue;
}
if (value == -1)
{
break;
}
byte[] message = Oracle.GenerateNumericMessage(value);
Console.WriteLine("Message: {0}", BitConverter.ToString(message).Replace("-", ""));
byte[] signature = Oracle.ComputeSignature(privKey, privPoint, message);
byte[] sGFromSig = Oracle.PublicKeyFromPrivateKey(signature);
byte[] sGFromPubKeysAndMessage = Oracle.ComputeSignaturePubKey(pubKey, rPoint, message);
Console.WriteLine("Signature: {0}", BitConverter.ToString(signature).Replace("-", ""));
Console.WriteLine("sG from signature: {0}", BitConverter.ToString(sGFromSig).Replace("-", ""));
Console.WriteLine("sG from pubkeys : {0}", BitConverter.ToString(sGFromPubKeysAndMessage).Replace("-", ""));
}
}
static void Main(string[] args)
{
byte[] privKey = StringToByteArray(File.ReadAllText("testdata/privkey.hex").Trim());
byte[] pubKey = Oracle.PublicKeyFromPrivateKey(privKey);
string[] otsKeysHex = File.ReadAllLines("testdata/one-time-signing-keys.hex");
string[] messagesHex = File.ReadAllLines("testdata/messages.hex");
string[] sigsHex = File.ReadAllLines("testdata/signatures.hex");
string[] sGsFromSigHex = File.ReadAllLines("testdata/signature-pubkeys-from-sig.hex");
string[] sGsFromMsgHex = File.ReadAllLines("testdata/signature-pubkeys-from-message.hex");
for (int i = 0; i < otsKeysHex.Length; i++)
{
byte[] privPoint = StringToByteArray(otsKeysHex[i]);
byte[] rPoint = Oracle.PublicKeyFromPrivateKey(privPoint);
byte[] message = StringToByteArray(messagesHex[i]);
byte[] expectedSig = StringToByteArray(sigsHex[i]);
byte[] expectedsG1 = StringToByteArray(sGsFromSigHex[i]);
byte[] expectedsG2 = StringToByteArray(sGsFromMsgHex[i]);
byte[] calculatedSig = Oracle.ComputeSignature(privKey, privPoint, message);
byte[] calculatedsG1 = Oracle.PublicKeyFromPrivateKey(calculatedSig);
byte[] calculatedsG2 = Oracle.ComputeSignaturePubKey(pubKey, rPoint, message);
Debug.Assert(expectedsG1.SequenceEqual(expectedsG2), "sGs are not equal. This is an issue in the Go code that generated the testset.", string.Format("Failure in record {0}", i));
Debug.Assert(calculatedSig.SequenceEqual(expectedSig), "Signature mismatch", string.Format("Failure in record {0} - Expected {1} - Got {2}", i, ByteArrayToString(expectedSig), ByteArrayToString(calculatedSig)));
Debug.Assert(calculatedsG1.SequenceEqual(expectedsG1), "sG from signature is incorrect", string.Format("Failure in record {0} - Expected {1} - Got {2}", i, ByteArrayToString(expectedsG1), ByteArrayToString(calculatedsG1)));
Debug.Assert(calculatedsG2.SequenceEqual(expectedsG2), "sG from pubkeys is incorrect", string.Format("Failure in record {0} - Expected {1} - Got {2}", i, ByteArrayToString(expectedsG2), ByteArrayToString(calculatedsG2)));
if (i % 100 == 0)
{
Console.Write("\rChecking signatures: {0}", i);
}
}
Console.WriteLine("\rSuccesfully completed signature checking.");
}
