Org.BouncyCastle.Crypto.Engines.Rfc3394WrapEngine.Wrap C# (CSharp) Метод

		public byte[] Wrap(
			byte[]	input,
			int		inOff,
			int		inLen)
		{
			if (!forWrapping)
			{
				throw new InvalidOperationException("not set for wrapping");
			}

			int n = inLen / 8;

			if ((n * 8) != inLen)
			{
				throw new DataLengthException("wrap data must be a multiple of 8 bytes");
			}

			byte[] block = new byte[inLen + iv.Length];
			byte[] buf = new byte[8 + iv.Length];

			Array.Copy(iv, 0, block, 0, iv.Length);
			Array.Copy(input, 0, block, iv.Length, inLen);

			engine.Init(true, param);

			for (int j = 0; j != 6; j++)
			{
				for (int i = 1; i <= n; i++)
				{
					Array.Copy(block, 0, buf, 0, iv.Length);
					Array.Copy(block, 8 * i, buf, iv.Length, 8);
					engine.ProcessBlock(buf, 0, buf, 0);

					int t = n * j + i;
					for (int k = 1; t != 0; k++)
					{
						byte v = (byte)t;

						buf[iv.Length - k] ^= v;
						t = (int) ((uint)t >> 8);
					}

					Array.Copy(buf, 0, block, 0, 8);
					Array.Copy(buf, 8, block, 8 * i, 8);
				}
			}

			return block;
		}