/**
* Novacoin classes library
* Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
* 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.
* 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.
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see .
*/
using System;
using System.Linq;
namespace Novacoin
{
public abstract class Hash
{
///
/// Array of digest bytes.
///
protected byte[] _hashBytes = null;
///
/// Hash size, must be overriden
///
public abstract int hashSize
{
get;
}
public byte[] hashBytes
{
get { return _hashBytes; }
}
///
/// Initializes an empty instance of the Hash class.
///
public Hash()
{
_hashBytes = new byte[hashSize];
}
///
/// Initializes a new instance of Hash class
///
/// Array of bytes
public Hash(byte[] bytes, int offset = 0)
{
_hashBytes = new byte[hashSize];
Array.Copy(bytes, offset, _hashBytes, 0, hashSize);
}
///
/// Initializes a new instance of Hash class as a copy of another one
///
/// Instance of hash class
public Hash(Hash h)
{
_hashBytes = new byte[h.hashSize];
h._hashBytes.CopyTo(_hashBytes, 0);
}
public bool IsZero
{
get { return !_hashBytes.Any(b => b != 0); }
}
/*public static implicit operator BigInteger(Hash h)
{
return new BigInteger(h._hashBytes);
}*/
public override string ToString()
{
return Interop.ToHex(Interop.ReverseBytes(_hashBytes));
}
}
}