static void SolveArgs(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine(StandardMessages.Info());
}
else
{
switch (args[0])
{
case "-g":
SolveKeyGeneration();
break;
case "-e":
SolveEncryption(args);
break;
case "-d":
SolveDecryption(args);
break;
default:
Console.WriteLine(StandardMessages.InvalidArgumentError());
break;
}
}
}
static void SolveDecryption(string[] args)
{
string encryption = args[1],
privateKeyString = args[2].FromHexString();
PrivateKey privateKey = (PrivateKey)PrivateKeyConverter.StringToKey(privateKeyString);
string message = rsa.Decrypt(encryption, privateKey);
Console.WriteLine(StandardMessages.DisplayDecryptedMessage(message));
}
static void SolveEncryption(string[] args)
{
string message = args[1],
publicKeyString = args[2].FromHexString();
PublicKey publicKey = (PublicKey)PublicKeyConverter.StringToKey(publicKeyString);
string encryption = rsa.Encrypt(message, publicKey);
Console.WriteLine(StandardMessages.DisplayEncryptedMessage(encryption));
}
static void SolveKeyGeneration()
{
Console.WriteLine(StandardMessages.GeneratingPrimesInit());
var sw = new Stopwatch();
sw.Start();
var primeNumberGenerator = new PrimeNumberGenerator(keySize / 2);
sw.Stop();
int n = primeNumberGenerator.Primes.Count;
double t = sw.Elapsed.TotalSeconds;
Console.WriteLine(StandardMessages.GeneratingPrimesFinish(n, t));
Console.WriteLine(StandardMessages.GeneratingKeys());
var keyPair = rsa.GenerateKeyPair(primeNumberGenerator);
string publicKey = PublicKeyConverter.KeyToString(keyPair.PublicKey).ToHexString(),
privateKey = PrivateKeyConverter.KeyToString(keyPair.PrivateKey).ToHexString();
Console.WriteLine(StandardMessages.DisplayKeys(publicKey, privateKey));
}
static void Initialize()
{
rsa = new PoorRSACryptoServiceProvider(keySize);
Console.WriteLine(StandardMessages.Header(keySize));
}