2 * Novacoin classes library
3 * Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU Affero General Public License as
7 * published by the Free Software Foundation, either version 3 of the
8 * License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Affero General Public License for more details.
15 * You should have received a copy of the GNU Affero General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 using System.Collections.Generic;
26 /// Miscellaneous functions
31 /// Convert array of unsigned integers to array of bytes.
33 /// <param name="values">Array of unsigned integer values.</param>
34 /// <returns>Byte array</returns>
35 public static byte[] LEBytes(uint[] values)
37 var result = new byte[values.Length * sizeof(uint)];
38 Buffer.BlockCopy(values, 0, result, 0, result.Length);
44 /// Convert byte array to array of unsigned integers.
46 /// <param name="bytes">Byte array.</param>
47 /// <returns>Array of integers</returns>
48 public static uint[] ToUInt32Array(byte[] bytes)
50 var result = new uint[bytes.Length / sizeof(uint)];
51 Buffer.BlockCopy(bytes, 0, result, 0, bytes.Length);
57 /// Reverse byte array
59 /// <param name="source">Source array</param>
60 /// <returns>Result array</returns>
61 public static byte[] ReverseBytes(byte[] source)
63 var b = new byte[source.Length];
72 public static byte[] HexToArray(string hex)
74 int nChars = hex.Length;
75 var bytes = new byte[nChars / 2];
77 for (int i = 0; i < nChars; i += 2)
79 bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
85 public static byte[] TrimArray(byte[] bytes)
87 int trimStart = bytes.Length - 1;
88 while (trimStart >= 0 && bytes[trimStart] == 0)
93 byte[] result = new byte[trimStart + 1];
94 Array.Copy(bytes, 0, result, 0, trimStart + 1);
99 public static string ToHex(byte[] bytes)
101 var sb = new StringBuilder();
102 foreach (var b in bytes)
104 sb.AppendFormat("{0:x2}", b);
106 return sb.ToString();
109 public static uint GetTime()
111 return (uint)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;