private static void ExportKeyPair(
Stream secretOut,
Stream publicOut,
AsymmetricCipherKeyPair dsaKp,
AsymmetricCipherKeyPair elgKp,
string identity,
char[] passPhrase,
bool armor)
{
if (armor)
{
secretOut = new ArmoredOutputStream(secretOut);
}
PgpKeyPair dsaKeyPair = new PgpKeyPair(PublicKeyAlgorithmTag.Dsa, dsaKp, DateTime.UtcNow);
PgpKeyPair elgKeyPair = new PgpKeyPair(PublicKeyAlgorithmTag.ElGamalEncrypt, elgKp, DateTime.UtcNow);
PgpKeyRingGenerator keyRingGen = new PgpKeyRingGenerator(PgpSignature.PositiveCertification, dsaKeyPair,
identity, SymmetricKeyAlgorithmTag.Aes256, passPhrase, true, null, null, new SecureRandom());
keyRingGen.AddSubKey(elgKeyPair);
keyRingGen.GenerateSecretKeyRing().Encode(secretOut);
if (armor)
{
secretOut.Close();
publicOut = new ArmoredOutputStream(publicOut);
}
keyRingGen.GeneratePublicKeyRing().Encode(publicOut);
if (armor)
{
publicOut.Close();
}
}
//src: http://stackoverflow.com/questions/17953852/generating-pgp-key-ring-using-bouncy-castle-c-results-in-key-id-ffffffff
public static PgpKeyRingGenerator generateKeyRingGenerator(String identity, String password)
{
KeyRingParams keyRingParams = new KeyRingParams();
keyRingParams.Password = password;
keyRingParams.Identity = identity;
keyRingParams.PrivateKeyEncryptionAlgorithm = SymmetricKeyAlgorithmTag.Aes128;
keyRingParams.SymmetricAlgorithms = new SymmetricKeyAlgorithmTag[] {
SymmetricKeyAlgorithmTag.Aes256/*,
SymmetricKeyAlgorithmTag.Aes192,
SymmetricKeyAlgorithmTag.Aes128*/
//TODO: delete ?
};
keyRingParams.HashAlgorithms = new HashAlgorithmTag[] {
HashAlgorithmTag.Sha256,
//TODO: delete ? + check Parameters
//HashAlgorithmTag.Sha1,
//HashAlgorithmTag.Sha384,
HashAlgorithmTag.Sha512,
//HashAlgorithmTag.Sha224,
};
IAsymmetricCipherKeyPairGenerator generator = GeneratorUtilities.GetKeyPairGenerator("RSA");
generator.Init(keyRingParams.RsaParams);
/* Create the master (signing-only) key. */
PgpKeyPair masterKeyPair = new PgpKeyPair(
PublicKeyAlgorithmTag.RsaSign,
generator.GenerateKeyPair(),
DateTime.UtcNow
);
PgpSignatureSubpacketGenerator masterSubpckGen
= new PgpSignatureSubpacketGenerator();
masterSubpckGen.SetKeyFlags(false,
PgpKeyFlags.CanSign
| PgpKeyFlags.CanCertify);
//create var for preferred symmetric algorithms
int [] iPreferedSymmetricAlgorithms = new int[keyRingParams.SymmetricAlgorithms.Length];
for (int i = 0; i < keyRingParams.SymmetricAlgorithms.Length; i++) {
iPreferedSymmetricAlgorithms[i] = (int) keyRingParams.SymmetricAlgorithms[i];
}
masterSubpckGen.SetPreferredSymmetricAlgorithms (false, iPreferedSymmetricAlgorithms);
//create var for preferred hash algorithms
int [] iPreferedHashAlgorithms = new int[keyRingParams.HashAlgorithms.Length];
for (int i = 0; i < keyRingParams.HashAlgorithms.Length; i++) {
iPreferedHashAlgorithms[i] = (int) keyRingParams.HashAlgorithms[i];
}
masterSubpckGen.SetPreferredHashAlgorithms (false, iPreferedHashAlgorithms);
/* Create a signing and encryption key for daily use. */
PgpKeyPair encKeyPair = new PgpKeyPair(
PublicKeyAlgorithmTag.RsaGeneral,
generator.GenerateKeyPair(),
DateTime.UtcNow);
PgpSignatureSubpacketGenerator encSubpckGen = new PgpSignatureSubpacketGenerator();
encSubpckGen.SetKeyFlags(false, PgpKeyFlags.CanEncryptCommunications | PgpKeyFlags.CanEncryptStorage);
masterSubpckGen.SetPreferredSymmetricAlgorithms(false, iPreferedSymmetricAlgorithms);
masterSubpckGen.SetPreferredHashAlgorithms (false, iPreferedHashAlgorithms);
/* Create the key ring. */
PgpKeyRingGenerator keyRingGen = new PgpKeyRingGenerator(
PgpSignature.DefaultCertification,
masterKeyPair,
keyRingParams.Identity,
keyRingParams.PrivateKeyEncryptionAlgorithm.Value,
keyRingParams.GetPassword(),
true,
masterSubpckGen.Generate(),
null,
new SecureRandom());
/* Add encryption subkey. */
keyRingGen.AddSubKey(encKeyPair, encSubpckGen.Generate(), null);
return keyRingGen;
}
public static PgpKeyRingGenerator CreateKeyRingGenerator(string identity, string password)
{
var dateTimeNowUtc = DateTime.UtcNow;
KeyRingParams keyRingParams = new KeyRingParams();
keyRingParams.Password = password;
keyRingParams.Identity = identity;
keyRingParams.PrivateKeyEncryptionAlgorithm = SymmetricKeyAlgorithmTag.Aes256;
keyRingParams.SymmetricAlgorithms = new SymmetricKeyAlgorithmTag[] {
SymmetricKeyAlgorithmTag.Aes256,
SymmetricKeyAlgorithmTag.Aes192,
SymmetricKeyAlgorithmTag.Aes128
};
keyRingParams.HashAlgorithms = new HashAlgorithmTag[] {
HashAlgorithmTag.Sha256,
HashAlgorithmTag.Sha1,
HashAlgorithmTag.Sha384,
HashAlgorithmTag.Sha512,
HashAlgorithmTag.Sha224,
};
IAsymmetricCipherKeyPairGenerator generator
= GeneratorUtilities.GetKeyPairGenerator("RSA");
generator.Init(keyRingParams.RsaParams);
/* Create the master (signing-only) key. */
PgpKeyPair masterKeyPair = new PgpKeyPair(
PublicKeyAlgorithmTag.RsaSign,
generator.GenerateKeyPair(),
dateTimeNowUtc);
Debug.WriteLine("Generated master key with ID "
+ masterKeyPair.KeyId.ToString("X"));
PgpSignatureSubpacketGenerator masterSubpckGen
= new PgpSignatureSubpacketGenerator();
var secondsUntilExpires = (long)(dateTimeNowUtc.AddDays(2) - dateTimeNowUtc).TotalSeconds;
masterSubpckGen.SetKeyExpirationTime(false, secondsUntilExpires);
masterSubpckGen.SetKeyFlags(false, PgpKeyFlags.CanSign
| PgpKeyFlags.CanCertify | PgpKeyFlags.CanEncryptCommunications | PgpKeyFlags.CanEncryptStorage);
masterSubpckGen.SetPreferredSymmetricAlgorithms(false,
(from a in keyRingParams.SymmetricAlgorithms
select (int)a).ToArray());
masterSubpckGen.SetPreferredHashAlgorithms(false,
(from a in keyRingParams.HashAlgorithms
select (int)a).ToArray());
/* Create a signing and encryption key for daily use. */
PgpKeyPair encKeyPair = new PgpKeyPair(
PublicKeyAlgorithmTag.RsaGeneral,
generator.GenerateKeyPair(),
dateTimeNowUtc);
Debug.WriteLine("Generated encryption key with ID "
+ encKeyPair.KeyId.ToString("X"));
PgpSignatureSubpacketGenerator encSubpckGen = new PgpSignatureSubpacketGenerator();
encSubpckGen.SetKeyFlags(false, PgpKeyFlags.CanEncryptCommunications | PgpKeyFlags.CanEncryptStorage);
encSubpckGen.SetKeyExpirationTime(false, secondsUntilExpires);
masterSubpckGen.SetPreferredSymmetricAlgorithms(false,
(from a in keyRingParams.SymmetricAlgorithms
select (int)a).ToArray());
masterSubpckGen.SetPreferredHashAlgorithms(false,
(from a in keyRingParams.HashAlgorithms
select (int)a).ToArray());
/* Create the key ring. */
PgpKeyRingGenerator keyRingGen = new PgpKeyRingGenerator(
PgpSignature.DefaultCertification,
masterKeyPair,
keyRingParams.Identity,
keyRingParams.PrivateKeyEncryptionAlgorithm.Value,
keyRingParams.GetPassword(),
true,
masterSubpckGen.Generate(),
null,
new SecureRandom());
/* Add encryption subkey. */
keyRingGen.AddSubKey(encKeyPair, encSubpckGen.Generate(), null);
return keyRingGen;
}
