7aYPLEqD

1private void addUserButton_Click(object sender, RoutedEventArgs e)
2        {
3            CryptoApiRandomGenerator randomGenerator = new CryptoApiRandomGenerator();
4            SecureRandom secureRandom = new SecureRandom(randomGenerator);
5            var keyGenerationParameters = new KeyGenerationParameters(secureRandom, RsaKeySize);
6
7            var keyPairGenerator = new RsaKeyPairGenerator();
8            keyPairGenerator.Init(keyGenerationParameters);
9            AsymmetricCipherKeyPair keyPair = keyPairGenerator.GenerateKeyPair();
10            var password = Encoding.ASCII.GetBytes(pass.Password);
11            var userName = user.Text;
12
13            Stream out1 = File.Create(@".\prywatne\" + userName);
14            Stream out2 = File.Create(@".\publiczne\" + userName);
15
16            ExportKeyPair(out1, out2, keyPair.Public, keyPair.Private, userName, password, true);
17
18            out1.Close();
19            out2.Close();
20
21            user.Text = "";
22            pass.Password = "";
23            this.Close();
24        }
25        private static void ExportKeyPair(
26            Stream secretOut,
27            Stream publicOut,
28            AsymmetricKeyParameter publicKey,
29            AsymmetricKeyParameter privateKey,
30            string identity,
31            byte[] passPhrase,
32            bool armor)
33        {
34
35            SHA256 hashMachine = SHA256Managed.Create();
36            byte[] passHash = hashMachine.ComputeHash(passPhrase);
37            PgpSecretKey secretKey = new PgpSecretKey(
38                PgpSignature.DefaultCertification,
39                PublicKeyAlgorithmTag.RsaGeneral,
40                publicKey,
41                privateKey,
42                DateTime.UtcNow,
43                identity,
44                SymmetricKeyAlgorithmTag.Blowfish,
45                Encoding.ASCII.GetChars(passHash),
46                null,
47                null,
48                new SecureRandom()
49                );
50
51            secretKey.Encode(secretOut);
52
53            if (armor)
54            {
55                secretOut.Close();
56                publicOut = new ArmoredOutputStream(publicOut);
57            }
58
59            PgpPublicKey key = secretKey.PublicKey;
60
61            key.Encode(publicOut);
62
63            if (armor)
64            {
65                publicOut.Close();
66            }
67        }