5 // Martin Baulig <martin.baulig@xamarin.com>
7 // Copyright (c) 2014-2016 Xamarin Inc. (http://www.xamarin.com)
9 // Permission is hereby granted, free of charge, to any person obtaining a copy
10 // of this software and associated documentation files (the "Software"), to deal
11 // in the Software without restriction, including without limitation the rights
12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 // copies of the Software, and to permit persons to whom the Software is
14 // furnished to do so, subject to the following conditions:
16 // The above copyright notice and this permission notice shall be included in
17 // all copies or substantial portions of the Software.
19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 namespace Mono.Security.Interface
30 public class BufferOffsetSize : SecretParameters, IBufferOffsetSize
32 public byte[] Buffer {
43 get { return EndOffset - Offset; }
46 public int EndOffset {
51 public BufferOffsetSize (byte[] buffer, int offset, int size)
55 EndOffset = offset + size;
58 public BufferOffsetSize (byte[] buffer)
59 : this (buffer, 0, buffer.Length)
63 public BufferOffsetSize (int size)
64 : this (new byte [size])
68 public byte[] GetBuffer ()
70 var copy = new byte [Size];
71 Array.Copy (Buffer, Offset, copy, 0, Size);
75 public void TruncateTo (int newSize)
78 throw new ArgumentException ("newSize");
79 EndOffset = Offset + newSize;
82 protected void SetBuffer (byte[] buffer, int offset, int size)
86 EndOffset = offset + size;
89 protected override void Clear ()
92 Offset = EndOffset = 0;