BitSharper.EcKey.ToAsn1 C# (CSharp) Method

        public byte[] ToAsn1()
        {
            using (var baos = new MemoryStream(400))
            {
                using (var encoder = new Asn1OutputStream(baos))
                {
                    // ASN1_SEQUENCE(EC_PRIVATEKEY) = {
                    //   ASN1_SIMPLE(EC_PRIVATEKEY, version, LONG),
                    //   ASN1_SIMPLE(EC_PRIVATEKEY, privateKey, ASN1_OCTET_STRING),
                    //   ASN1_EXP_OPT(EC_PRIVATEKEY, parameters, ECPKPARAMETERS, 0),
                    //   ASN1_EXP_OPT(EC_PRIVATEKEY, publicKey, ASN1_BIT_STRING, 1)
                    // } ASN1_SEQUENCE_END(EC_PRIVATEKEY)
                    var seq = new DerSequenceGenerator(encoder);
                    seq.AddObject(new DerInteger(1)); // version
                    seq.AddObject(new DerOctetString(_priv.ToByteArray()));
                    seq.AddObject(new DerTaggedObject(0, SecNamedCurves.GetByName("secp256k1").ToAsn1Object()));
                    seq.AddObject(new DerTaggedObject(1, new DerBitString(PubKey)));
                    seq.Close();
                }
                return baos.ToArray();
            }
        }