96 lines
2.6 KiB
C#
96 lines
2.6 KiB
C#
/*
|
|
This file is part of PacketDotNet
|
|
|
|
PacketDotNet is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
PacketDotNet 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 Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with PacketDotNet. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/*
|
|
* Copyright 2010 Evan Plaice <evanplaice@gmail.com>
|
|
*/
|
|
using System;
|
|
using MiscUtil.Conversion;
|
|
using PacketDotNet.Utils;
|
|
|
|
namespace PacketDotNet.Tcp
|
|
{
|
|
/// <summary>
|
|
/// MD5 Signature
|
|
/// Carries the MD5 Digest used by the BGP protocol to
|
|
/// ensure security between two endpoints
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// References:
|
|
/// http://datatracker.ietf.org/doc/rfc2385/
|
|
/// </remarks>
|
|
public class MD5Signature : Option
|
|
{
|
|
#region Constructors
|
|
|
|
/// <summary>
|
|
/// Creates a MD5 Signature Option
|
|
/// </summary>
|
|
/// <param name="bytes">
|
|
/// A <see cref="System.Byte[]"/>
|
|
/// </param>
|
|
/// <param name="offset">
|
|
/// A <see cref="System.Int32"/>
|
|
/// </param>
|
|
/// <param name="length">
|
|
/// A <see cref="System.Int32"/>
|
|
/// </param>
|
|
public MD5Signature(byte[] bytes, int offset, int length) :
|
|
base(bytes, offset, length)
|
|
{ }
|
|
|
|
#endregion
|
|
|
|
#region Properties
|
|
|
|
/// <summary>
|
|
/// The MD5 Digest
|
|
/// </summary>
|
|
public byte[] MD5Digest
|
|
{
|
|
get
|
|
{
|
|
byte[] data = new byte[Length - MD5DigestFieldOffset];
|
|
Array.Copy(Bytes, MD5DigestFieldOffset, data, 0, data.Length);
|
|
return data;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Methods
|
|
|
|
/// <summary>
|
|
/// Returns the Option info as a string
|
|
/// </summary>
|
|
/// <returns>
|
|
/// A <see cref="System.String"/>
|
|
/// </returns>
|
|
public override string ToString()
|
|
{
|
|
return "[" + Kind.ToString() + ": MD5Digest=0x" + MD5Digest.ToString() + "]";
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Members
|
|
|
|
// the offset (in bytes) of the MD5 Digest field
|
|
const int MD5DigestFieldOffset = 2;
|
|
|
|
#endregion
|
|
}
|
|
} |