Static methods for output array serialization and deserialization.

[NovacoinLibrary.git] / Novacoin / CPubKey.cs

diff --git a/Novacoin/CPubKey.cs b/Novacoin/CPubKey.cs
index a6227a6..33d1b92 100644 (file)
--- a/Novacoin/CPubKey.cs
+++ b/Novacoin/CPubKey.cs
@@ -1,52 +1,59 @@
-\feffusing System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+\feff/**
+ *  Novacoin classes library
+ *  Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
 
-using Org.BouncyCastle.Math;
-using Org.BouncyCastle.Math.EC;
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
 
-using Org.BouncyCastle.Crypto;
-using Org.BouncyCastle.Crypto.Generators;
-using Org.BouncyCastle.Crypto.Parameters;
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
 
-using Org.BouncyCastle.Asn1.X9;
-using Org.BouncyCastle.Security;
-using Org.BouncyCastle.Asn1.Sec;
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System.Collections.Generic;
+using System.Linq;
+using Org.BouncyCastle.Crypto.Parameters;
 
 namespace Novacoin
 {
     /// <summary>
     /// Representation of ECDSA public key
     /// </summary>
-    public class CPubKey
+    public class CPubKey : CKey
     {
-        private ECPoint Q;
-        private static X9ECParameters curve = SecNamedCurves.GetByName("secp256k1");
-        private static ECDomainParameters domain = new ECDomainParameters(curve.Curve, curve.G, curve.N, curve.H, curve.GetSeed());
-
         /// <summary>
         /// Initializes a new instance of CPubKey class as the copy of another instance
         /// </summary>
         /// <param name="pubKey">Another CPubKey instance</param>
         public CPubKey(CPubKey pubKey)
         {
-            Q = pubKey.Q;
+            _Public = pubKey._Public;
         }
 
         /// <summary>
         /// Initializes a new instance of CPubKey class using supplied sequence of bytes
         /// </summary>
         /// <param name="bytes">Byte sequence</param>
-        public CPubKey(IEnumerable<byte> bytes)
+        public CPubKey(byte[] bytes)
         {
-            Q = ((ECPublicKeyParameters)PublicKeyFactory.CreateKey(bytes.ToArray())).Q;
+            var pQ = curve.Curve.DecodePoint(bytes);
+            _Public = new ECPublicKeyParameters(pQ, domain);
         }
 
-        public CPubKey(ECPoint pQ)
+        /// <summary>
+        /// Init with base58 encoded sequence of bytes
+        /// </summary>
+        /// <param name="strBase58"></param>
+        public CPubKey(string strBase58)
         {
-            Q = pQ;
+            var pQ = curve.Curve.DecodePoint(AddressTools.Base58DecodeCheck(strBase58));
+            _Public = new ECPublicKeyParameters(pQ, domain);
         }
 
         /// <summary>
@@ -55,50 +62,30 @@ namespace Novacoin
         /// <returns>Validation result</returns>
         public bool IsValid
         {
-            get { return !Q.IsInfinity; }
+            get { return !_Public.Q.IsInfinity; }
         }
 
-        /// <summary>
-        /// Is this a compressed public key?
-        /// </summary>
-        /// <returns></returns>
-        public bool IsCompressed
+        public string ToHex()
         {
-            get { return Q.IsCompressed; }
+            return Interop.ToHex(this);
         }
 
         /// <summary>
-        /// Calculate Hash160 and create new CKeyID instance.
+        /// Public part of key pair
         /// </summary>
-        /// <returns>New key ID</returns>
-        public CKeyID GetKeyID()
+        public static implicit operator byte[] (CPubKey p)
         {
-            return new CKeyID(Hash160.Compute160(Raw));
+            return p._Public.Q.GetEncoded();
         }
 
-        public bool Verify(IEnumerable<byte> data, IEnumerable<byte> signature)
+        public override string ToString()
         {
-            byte[] dataBytes = data.ToArray();
-
-            ISigner signer = SignerUtilities.GetSigner("SHA-256withECDSA");
-            ECPublicKeyParameters keyParameters = new ECPublicKeyParameters(Q, domain);
-            signer.Init(false, keyParameters);
-            signer.BlockUpdate(dataBytes, 0, dataBytes.Length);
+            var r = new List<byte>();
 
-            return signer.VerifySignature(signature.ToArray());
-        }
+            r.Add((byte)(AddrType.PUBKEY_ADDRESS));
+            r.AddRange((byte[])this);
 
-        /// <summary>
-        /// Accessor for internal representation
-        /// </summary>
-        public IEnumerable<byte> Raw
-        {
-            get { return Q.GetEncoded(); }
-        }
-
-        public override string ToString()
-        {
-            return Interop.ToHex(Raw);
+            return AddressTools.Base58EncodeCheck(r.ToArray());
         }
     }
 }