using System;
using System.Runtime.InteropServices;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes
{
	// Token: 0x0200165C RID: 5724
	[Token(Token = "0x200165C")]
	[StructLayout(3)]
	public class GOfbBlockCipher : IBlockCipher
	{
		// Token: 0x0600989D RID: 39069 RVA: 0x0021DF64 File Offset: 0x0021C164
		[Token(Token = "0x600989D")]
		[Address(RVA = "0x20EBA60", Offset = "0x20EA460", VA = "0x1820EBA60")]
		public GOfbBlockCipher(IBlockCipher cipher)
		{
			this.cipher = cipher;
			byte[] array = new byte[0];
			this.IV = array;
			byte[] array2 = new byte[array];
			this.ofbV = array2;
			byte[] array3 = new byte[array2];
			this.ofbOutV = array3;
		}

		// Token: 0x0600989E RID: 39070 RVA: 0x0021DFC0 File Offset: 0x0021C1C0
		[Token(Token = "0x600989E")]
		[Address(RVA = "0x3C1250", Offset = "0x3BFC50", VA = "0x1803C1250")]
		public IBlockCipher GetUnderlyingCipher()
		{
			return this.cipher;
		}

		// Token: 0x0600989F RID: 39071 RVA: 0x0021DFD4 File Offset: 0x0021C1D4
		[Token(Token = "0x600989F")]
		[Address(RVA = "0x20EB4F0", Offset = "0x20E9EF0", VA = "0x1820EB4F0", Slot = "5")]
		public void Init(bool forEncryption, ICipherParameters parameters)
		{
			do
			{
				int num = 0;
				this.firstStep = true;
				this.N3 = num;
				if (parameters == 0 || parameters == 0)
				{
					goto IL_4D;
				}
			}
			while (parameters == 0);
			byte[] iv = this.IV;
			byte[] array;
			int length = array.Length;
			int length2 = iv.Length;
			int num2 = 0;
			int num3 = 0;
			Array.Copy(array, num2, iv, num3, length2);
			IL_4D:
			byte[] iv2 = this.IV;
			int length3 = iv2.Length;
			int num4 = 0;
			byte[] array2 = this.ofbV;
			int num5 = 0;
			Array.Copy(iv2, num5, array2, num4, length3);
			IBlockCipher blockCipher = this.cipher;
			if (parameters != 0)
			{
				IBlockCipher blockCipher2 = this.cipher;
			}
		}

		// Token: 0x1700187B RID: 6267
		// (get) Token: 0x060098A0 RID: 39072 RVA: 0x0021E078 File Offset: 0x0021C278
		[Token(Token = "0x1700187B")]
		public string AlgorithmName
		{
			[Token(Token = "0x60098A0")]
			[Address(RVA = "0x20EBC40", Offset = "0x20EA640", VA = "0x1820EBC40", Slot = "4")]
			get
			{
				IBlockCipher blockCipher = this.cipher;
				return 0 + "/GCTR";
			}
		}

		// Token: 0x1700187C RID: 6268
		// (get) Token: 0x060098A1 RID: 39073 RVA: 0x0021E0A0 File Offset: 0x0021C2A0
		[Token(Token = "0x1700187C")]
		public bool IsPartialBlockOkay
		{
			[Token(Token = "0x60098A1")]
			[Address(RVA = "0x4405A0", Offset = "0x43EFA0", VA = "0x1804405A0", Slot = "7")]
			get
			{
				return true;
			}
		}

		// Token: 0x060098A2 RID: 39074 RVA: 0x0021E0B0 File Offset: 0x0021C2B0
		[Token(Token = "0x60098A2")]
		[Address(RVA = "0x4D24F0", Offset = "0x4D0EF0", VA = "0x1804D24F0", Slot = "6")]
		public int GetBlockSize()
		{
			return this.blockSize;
		}

		// Token: 0x060098A3 RID: 39075 RVA: 0x0021E0C4 File Offset: 0x0021C2C4
		[Token(Token = "0x60098A3")]
		[Address(RVA = "0x20EB720", Offset = "0x20EA120", VA = "0x1820EB720", Slot = "8")]
		public int ProcessBlock(byte[] input, int inOff, byte[] output, int outOff)
		{
			int num = 0;
			if ((this.firstStep ? 1 : 0) != num)
			{
				IBlockCipher blockCipher = this.cipher;
				this.firstStep = num != 0;
				byte[] array = this.ofbOutV;
				byte[] array2 = this.ofbOutV;
				int num2 = 0;
				int num3 = this.bytesToint(array2, num2);
				byte[] array3 = this.ofbOutV;
				this.N3 = num3;
				int num4 = this.bytesToint(array3, 4);
				this.N4 = num4;
			}
			int num5 = this.N3;
			num5 += 16843009;
			int num6 = this.N4;
			this.N3 = num5;
			if (num6 < 16843012 && num6 > 0)
			{
				num6++;
				this.N4 = num6;
			}
			byte[] array4 = this.ofbV;
			int num7 = 0;
			this.intTobytes(num5, array4, num7);
			byte[] array5 = this.ofbV;
			int n = this.N4;
			uint num8;
			this.intTobytes(n, array5, (int)num8);
			IBlockCipher blockCipher2 = this.cipher;
			byte[] array6 = this.ofbOutV;
			int num9;
			if (this.blockSize > 0)
			{
				byte[] array7 = this.ofbOutV;
				num9 = this.blockSize;
			}
			byte[] array8 = this.ofbV;
			int num10 = array8.Length;
			int num11 = 0;
			num10 -= num9;
			Array.Copy(array8, num9, array8, num11, num10);
			byte[] array9 = this.ofbV;
			int num12 = this.blockSize;
			int num13 = 0;
			int num14 = array9.Length;
			byte[] array10 = this.ofbOutV;
			num14 -= num12;
			Array.Copy(array10, num13, array9, num14, num12);
			return this.blockSize;
		}

		// Token: 0x060098A4 RID: 39076 RVA: 0x0021E234 File Offset: 0x0021C434
		[Token(Token = "0x60098A4")]
		[Address(RVA = "0x20EB9F0", Offset = "0x20EA3F0", VA = "0x1820EB9F0", Slot = "9")]
		public void Reset()
		{
			byte[] iv = this.IV;
			int length = iv.Length;
			int num = 0;
			byte[] array = this.ofbV;
			int num2 = 0;
			Array.Copy(iv, num2, array, num, length);
			IBlockCipher blockCipher = this.cipher;
			throw new NullReferenceException();
		}

		// Token: 0x060098A5 RID: 39077 RVA: 0x0021E274 File Offset: 0x0021C474
		[Token(Token = "0x60098A5")]
		[Address(RVA = "0x20EBB80", Offset = "0x20EA580", VA = "0x1820EBB80")]
		private int bytesToint(byte[] inBytes, int inOff)
		{
			int length = inBytes.Length;
			int num = inOff + 1;
			byte b;
			byte b2;
			b += b2;
			b += b2;
			byte b3;
			b += b3;
			throw new NullReferenceException();
		}

		// Token: 0x060098A6 RID: 39078 RVA: 0x0021E2A0 File Offset: 0x0021C4A0
		[Token(Token = "0x60098A6")]
		[Address(RVA = "0x20EBCA0", Offset = "0x20EA6A0", VA = "0x1820EBCA0")]
		private void intTobytes(int num, byte[] outBytes, int outOff)
		{
			int num2 = outOff + 1;
		}

		// Token: 0x0400644C RID: 25676
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400644C")]
		private byte[] IV;

		// Token: 0x0400644D RID: 25677
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x400644D")]
		private byte[] ofbV;

		// Token: 0x0400644E RID: 25678
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x400644E")]
		private byte[] ofbOutV;

		// Token: 0x0400644F RID: 25679
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x400644F")]
		private readonly int blockSize;

		// Token: 0x04006450 RID: 25680
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
		[Token(Token = "0x4006450")]
		private readonly IBlockCipher cipher;

		// Token: 0x04006451 RID: 25681
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
		[Token(Token = "0x4006451")]
		private bool firstStep = true;

		// Token: 0x04006452 RID: 25682
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x3C")]
		[Token(Token = "0x4006452")]
		private int N3;

		// Token: 0x04006453 RID: 25683
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
		[Token(Token = "0x4006453")]
		private int N4;

		// Token: 0x04006454 RID: 25684
		[Token(Token = "0x4006454")]
		private const int C1 = 16843012;

		// Token: 0x04006455 RID: 25685
		[Token(Token = "0x4006455")]
		private const int C2 = 16843009;
	}
}