public string DumpHostKeyInKnownHostsStyle()
{
StringBuilder bld = new StringBuilder();
bld.Append(SSH2Util.PublicKeyAlgorithmName(_hostkey.Algorithm));
bld.Append(' ');
SSH2DataWriter wr = new SSH2DataWriter();
wr.Write(SSH2Util.PublicKeyAlgorithmName(_hostkey.Algorithm));
if (_hostkey.Algorithm == PublicKeyAlgorithm.RSA)
{
RSAPublicKey rsa = (RSAPublicKey)_hostkey;
wr.Write(rsa.Exponent);
wr.Write(rsa.Modulus);
}
else if (_hostkey.Algorithm == PublicKeyAlgorithm.DSA)
{
DSAPublicKey dsa = (DSAPublicKey)_hostkey;
wr.Write(dsa.P);
wr.Write(dsa.Q);
wr.Write(dsa.G);
wr.Write(dsa.Y);
}
else
{
//throw new Exception("Host key algorithm is unsupported");
throw new Exception("Host key algorithm is unsupported");
}
byte[] tmpdata = Base64.Encode(wr.ToByteArray());
bld.Append(Encoding.UTF8.GetString(tmpdata, 0, tmpdata.Length));
return(bld.ToString());
}
public byte[] GetPublicKeyBlob()
{
SSH2DataWriter w = new SSH2DataWriter();
w.Write(SSH2Util.PublicKeyAlgorithmName(_keypair.Algorithm));
_keypair.PublicKey.WriteTo(w);
return(w.ToByteArray());
}
private string FormatBase64EncodedPublicKeyBody()
{
SSH2DataWriter wr = new SSH2DataWriter();
wr.Write(SSH2Util.PublicKeyAlgorithmName(_keypair.Algorithm));
_keypair.PublicKey.WriteTo(wr);
byte[] tmpdata = Base64.Encode(wr.ToByteArray());
return(Encoding.UTF8.GetString(tmpdata, 0, tmpdata.Length));
}
internal void WritePublicPartInOpenSSHStyle(Stream dest)
{
StreamWriter sw = new StreamWriter(dest, Encoding.UTF8);
sw.Write(SSH2Util.PublicKeyAlgorithmName(_keypair.Algorithm));
sw.Write(' ');
sw.WriteLine(FormatBase64EncodedPublicKeyBody());
sw.Dispose();
}