コード例 #1
0
ファイル: ECKey.cs プロジェクト: bitcoinkit/BitcoinKit-CSharp
        public byte[] ToDER(bool compressed)
        {
            AssertPrivateKey();
            MemoryStream baos = new MemoryStream();

            // 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)
            DerSequenceGenerator seq = new DerSequenceGenerator(baos);
            seq.AddObject(new DerInteger(1)); // version
            seq.AddObject(new DerOctetString(PrivateKey.D.ToByteArrayUnsigned()));

            //Did not managed to generate the same der as brainwallet by using this
            //seq.AddObject(new DerTaggedObject(0, Secp256k1.ToAsn1Object()));
            Asn1Object secp256k1Der = null;
            if(compressed)
            {
                secp256k1Der = DerSequence.FromByteArray(HexEncoding.Instance.GetBytes("308182020101302c06072a8648ce3d0101022100fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f300604010004010704210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798022100fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141020101"));
            }
            else
            {
                secp256k1Der = DerSequence.FromByteArray(HexEncoding.Instance.GetBytes("3081a2020101302c06072a8648ce3d0101022100fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f300604010004010704410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8022100fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141020101"));
            }
            seq.AddObject(new DerTaggedObject(0, secp256k1Der));
            seq.AddObject(new DerTaggedObject(1, new DerBitString(GetPublicKey(compressed).ToBytes())));
            seq.Close();
            return baos.ToArray();
        }
コード例 #2
0
 /**
 * What we get back from the signer are the two components of a signature, r and s. To get a flat byte stream
 * of the type used by Bitcoin we have to encode them using DER encoding, which is just a way to pack the two
 * components into a structure.
 */
 public byte[] ToDER()
 {
     // Usually 70-72 bytes.
     MemoryStream bos = new MemoryStream(72);
     DerSequenceGenerator seq = new DerSequenceGenerator(bos);
     seq.AddObject(new DerInteger(R));
     seq.AddObject(new DerInteger(S));
     seq.Close();
     return bos.ToArray();
 }