// Parses a PKCS#8 encoded private key
public static RSAPrivateKey ParsePem(Stream input)
{
var der = Pem.Decode(input, Pem.PrivateKey);
using (var derStream = new MemoryStream(der))
{
// TODO add more validation, ensure that the algorithm used is RSA
var asn1 = (Sequence)Asn1Parser.Default.Parse(derStream).First();
var octet = (OctetString)asn1.Children.Last();
using (var octetStream = new MemoryStream(octet.UnencodedValue))
{
return(RSAPrivateKey.ParseDer(octetStream));
}
}
}
public string ToPemString()
{
return(Pem.Encode(ToDerBytes(), Pem.RSAPrivateKey));
}
private static byte[] DecodePem(Stream input)
{
return(Pem.Decode(input, Pem.RSAPrivateKey));
}
public static string EncodeAsBase64(CertificateRequestData requestData)
{
var bytes = EncodeAsDer(requestData);
return(Pem.Encode(bytes, "NEW CERTIFICATE REQUEST"));
}
