Novacoin/CPubKey.cs

   1 \feffusing System;
   2 using System.Collections.Generic;
   3 using System.Linq;
   4 using System.Text;
   5 using System.Threading.Tasks;
   6
   7 namespace Novacoin
   8 {
   9     /// <summary>
  10     /// Representation of ECDSA public key
  11     /// </summary>
  12     public class CPubKey
  13     {
  14         /// <summary>
  15         /// Public key bytes
  16         /// </summary>
  17         private List<byte> pubKeyBytes;
  18
  19         /// <summary>
  20         /// Initializes a new instance of CPubKey class as the copy of another instance
  21         /// </summary>
  22         /// <param name="pubKey">Another CPubKey instance</param>
  23         public CPubKey(CPubKey pubKey)
  24         {
  25             pubKeyBytes = pubKey.pubKeyBytes;
  26         }
  27
  28         /// <summary>
  29         /// Initializes a new instance of CPubKey class using supplied sequence of bytes
  30         /// </summary>
  31         /// <param name="bytesList"></param>
  32         public CPubKey(IEnumerable<byte> bytesList)
  33         {
  34             pubKeyBytes = new List<byte>(bytesList);
  35         }
  36
  37         /// <summary>
  38         /// Quick validity test
  39         /// </summary>
  40         /// <returns>Validation result</returns>
  41         public bool IsValid()
  42         {
  43             return pubKeyBytes.Count == 33 || pubKeyBytes.Count == 65;
  44         }
  45
  46         /// <summary>
  47         /// Is this a compressed public key?
  48         /// </summary>
  49         /// <returns></returns>
  50         public bool IsCompressed()
  51         {
  52             // Compressed public keys are 33 bytes long
  53             return pubKeyBytes.Count == 33;
  54         }
  55
  56         /// <summary>
  57         /// Calculate Hash160 and create new CKeyID instance.
  58         /// </summary>
  59         /// <returns>New key ID</returns>
  60         public CKeyID GetKeyID()
  61         {
  62             return new CKeyID(Hash160.Compute160(this.Raw));
  63         }
  64
  65         /// <summary>
  66         /// Accessor for internal representation
  67         /// </summary>
  68         public IList<byte> Raw
  69         {
  70             get { return pubKeyBytes; }
  71         }
  72     }
  73 }