public static void ConvertPemToDer(Stream source, Stream target)
{
using (var ts = new StreamReader(source))
{
using (var xr = new X509Request(ts.ReadToEnd()))
{
using (var bio = BIO.MemoryBuffer())
{
xr.Write_DER(bio);
var arr = bio.ReadBytes((int)bio.BytesPending);
target.Write(arr.Array, arr.Offset, arr.Count);
}
}
}
}
public void TestGenCSR()
{
var pem = File.ReadAllText("openssl-rsagen-privatekey.txt");
var rsa = CryptoKey.FromPrivateKey(pem, null);
//pem = File.ReadAllText("openssl-rsagen-publickey.txt");
//rsa = CryptoKey.FromPublicKey(pem, null);
var nam = new X509Name();
nam.Common = "FOOBAR";
nam.Country = "US";
var csr = new X509Request();
csr.PublicKey = rsa;
csr.Subject = nam;
csr.Sign(rsa, MessageDigest.SHA256);
File.WriteAllText("openssl-requ-csr.txt", csr.PEM);
using (var bioOut = BIO.MemoryBuffer())
{
csr.Write_DER(bioOut);
var arr = bioOut.ReadBytes((int)bioOut.BytesPending);
File.WriteAllBytes("openssl-requ-csr.der", arr.Array);
}
//using (var bioIn = BIO.MemoryBuffer())
//{
// var pem2 = File.ReadAllText("openssl-requ-csr.txt");
// bioIn.Write(pem2);
// var csr = new X509Request()
// var x509 = new X509Certificate(bioIn);
//}
}
/// <summary>
/// Support exporting CSR to <see cref="EncodingFormat.PEM">PEM</see>
/// and <see cref="EncodingFormat.DER">DER</see> formats.
/// </summary>
public override void ExportCsr(Csr csr, EncodingFormat fmt, Stream target)
{
if (fmt == EncodingFormat.PEM)
{
var bytes = Encoding.UTF8.GetBytes(csr.Pem);
target.Write(bytes, 0, bytes.Length);
}
else if (fmt == EncodingFormat.DER)
{
using (var xr = new X509Request(csr.Pem))
{
using (var bio = BIO.MemoryBuffer())
{
xr.Write_DER(bio);
var arr = bio.ReadBytes((int)bio.BytesPending);
target.Write(arr.Array, arr.Offset, arr.Count);
}
}
}
else
{
throw new NotSupportedException("encoding format has not been implemented");
}
}