using System;
using System.IO;
using System.Security.Cryptography;

namespace ExitGames.Client.Photon.EncryptorManaged
{
	// Token: 0x0200003B RID: 59
	public class Encryptor : CryptoBase
	{
		// Token: 0x060002BD RID: 701 RVA: 0x00013DA0 File Offset: 0x00011FA0
		public void Encrypt(byte[] data, int len, byte[] output, ref int offset)
		{
			using (ICryptoTransform cryptoTransform = this.encryptor.CreateEncryptor())
			{
				using (MemoryStream memoryStream = new MemoryStream(output, offset, output.Length - offset))
				{
					byte[] iv = this.encryptor.IV;
					memoryStream.Write(iv, 0, iv.Length);
					using (CryptoStream cryptoStream = new CryptoStream(memoryStream, cryptoTransform, CryptoStreamMode.Write))
					{
						cryptoStream.Write(data, 0, len);
						cryptoStream.FlushFinalBlock();
						this.encryptor.GenerateIV();
						offset += (int)memoryStream.Position;
					}
				}
			}
		}

		// Token: 0x060002BE RID: 702 RVA: 0x00013E6C File Offset: 0x0001206C
		public void HMAC(byte[] data, int offset, int count)
		{
			this.hmacsha256.TransformBlock(data, offset, count, data, offset);
		}

		// Token: 0x060002BF RID: 703 RVA: 0x00013E80 File Offset: 0x00012080
		public byte[] FinishHMAC()
		{
			this.hmacsha256.TransformFinalBlock(Encryptor.zeroBytes, 0, 0);
			byte[] hash = this.hmacsha256.Hash;
			this.hmacsha256.Initialize();
			return hash;
		}

		// Token: 0x060002C0 RID: 704 RVA: 0x00013EC0 File Offset: 0x000120C0
		public byte[] FinishHMAC(byte[] data, int offset, int count)
		{
			this.hmacsha256.TransformFinalBlock(data, offset, count);
			byte[] hash = this.hmacsha256.Hash;
			this.hmacsha256.Initialize();
			return hash;
		}

		// Token: 0x04000183 RID: 387
		private static readonly byte[] zeroBytes = new byte[0];
	}
}