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using System;
using System.IO;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Generators;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Bcpg.OpenPgp;
using Org.BouncyCastle.Security;
namespace Org.BouncyCastle.Bcpg.OpenPgp.Examples
{
/**
* A simple utility class that Generates a RSA PgpPublicKey/PgpSecretKey pair.
* <p>
* usage: RsaKeyRingGenerator [-a] identity passPhrase</p>
* <p>
* Where identity is the name to be associated with the public key. The keys are placed
* in the files pub.[asc|bpg] and secret.[asc|bpg].</p>
*/
public sealed class RsaKeyRingGenerator
{
private RsaKeyRingGenerator()
{
}
private static void ExportKeyPair(
Stream secretOut,
Stream publicOut,
AsymmetricKeyParameter publicKey,
AsymmetricKeyParameter privateKey,
string identity,
char[] passPhrase,
bool armor)
{
if (armor)
{
secretOut = new ArmoredOutputStream(secretOut);
}
PgpSecretKey secretKey = new PgpSecretKey(
PgpSignature.DefaultCertification,
PublicKeyAlgorithmTag.RsaGeneral,
publicKey,
privateKey,
DateTime.UtcNow,
identity,
SymmetricKeyAlgorithmTag.Cast5,
passPhrase,
null,
null,
new SecureRandom()
);
secretKey.Encode(secretOut);
if (armor)
{
secretOut.Close();
publicOut = new ArmoredOutputStream(publicOut);
}
PgpPublicKey key = secretKey.PublicKey;
key.Encode(publicOut);
if (armor)
{
publicOut.Close();
}
}
public static int Main(
string[] args)
{
IAsymmetricCipherKeyPairGenerator kpg = GeneratorUtilities.GetKeyPairGenerator("RSA");
kpg.Init(new RsaKeyGenerationParameters(
BigInteger.ValueOf(0x10001), new SecureRandom(), 1024, 25));
AsymmetricCipherKeyPair kp = kpg.GenerateKeyPair();
if (args.Length < 2)
{
Console.WriteLine("RsaKeyPairGenerator [-a] identity passPhrase");
return 0;
}
Stream out1, out2;
if (args[0].Equals("-a"))
{
if (args.Length < 3)
{
Console.WriteLine("RsaKeyPairGenerator [-a] identity passPhrase");
return 0;
}
out1 = File.Create("secret.asc");
out2 = File.Create("pub.asc");
ExportKeyPair(out1, out2, kp.Public, kp.Private, args[1], args[2].ToCharArray(), true);
}
else
{
out1 = File.Create("secret.bpg");
out2 = File.Create("pub.bpg");
ExportKeyPair(out1, out2, kp.Public, kp.Private, args[0], args[1].ToCharArray(), false);
}
out1.Close();
out2.Close();
return 0;
}
}
}
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