using System;
using System.IO;
using System.Runtime.InteropServices;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Macs;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes
{
	// Token: 0x02001656 RID: 5718
	[Token(Token = "0x2001656")]
	[StructLayout(3)]
	public class CcmBlockCipher : IAeadBlockCipher
	{
		// Token: 0x0600984D RID: 38989 RVA: 0x0021BE64 File Offset: 0x0021A064
		[Token(Token = "0x600984D")]
		[Address(RVA = "0x20E7090", Offset = "0x20E5A90", VA = "0x1820E7090")]
		public CcmBlockCipher(IBlockCipher cipher)
		{
			MemoryStream memoryStream = new MemoryStream();
			this.associatedText = memoryStream;
			MemoryStream memoryStream2 = new MemoryStream();
			this.data = memoryStream2;
			base..ctor();
			this.cipher = cipher;
			byte[] array = new byte[CcmBlockCipher.BlockSize];
			this.macBlock = array;
		}

		// Token: 0x0600984E RID: 38990 RVA: 0x0021BEC4 File Offset: 0x0021A0C4
		[Token(Token = "0x600984E")]
		[Address(RVA = "0x3C39A0", Offset = "0x3C23A0", VA = "0x1803C39A0", Slot = "17")]
		public virtual IBlockCipher GetUnderlyingCipher()
		{
			return this.cipher;
		}

		// Token: 0x0600984F RID: 38991 RVA: 0x0021BED8 File Offset: 0x0021A0D8
		[Token(Token = "0x600984F")]
		[Address(RVA = "0x20E6330", Offset = "0x20E4D30", VA = "0x1820E6330", Slot = "18")]
		public virtual void Init(bool forEncryption, ICipherParameters parameters)
		{
			/*
An exception occurred when decompiling this method (0600984F)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes.CcmBlockCipher::Init(System.Boolean,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_78:
	stloc:ArgumentException(var_11_82, newobj:ArgumentException(ArgumentException::.ctor, ldstr:string("invalid parameters passed to CCM")))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x17001876 RID: 6262
		// (get) Token: 0x06009850 RID: 38992 RVA: 0x0021BF68 File Offset: 0x0021A168
		[Token(Token = "0x17001876")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x6009850")]
			[Address(RVA = "0x20E7220", Offset = "0x20E5C20", VA = "0x1820E7220", Slot = "19")]
			get
			{
				IBlockCipher blockCipher = this.cipher;
				return 0 + "/CCM";
			}
		}

		// Token: 0x06009851 RID: 38993 RVA: 0x0021BF90 File Offset: 0x0021A190
		[Token(Token = "0x6009851")]
		[Address(RVA = "0x20E61B0", Offset = "0x20E4BB0", VA = "0x1820E61B0", Slot = "20")]
		public virtual int GetBlockSize()
		{
			IBlockCipher blockCipher = this.cipher;
			throw new NullReferenceException();
		}

		// Token: 0x06009852 RID: 38994 RVA: 0x0021BFAC File Offset: 0x0021A1AC
		[Token(Token = "0x6009852")]
		[Address(RVA = "0x20E65C0", Offset = "0x20E4FC0", VA = "0x1820E65C0", Slot = "21")]
		public virtual void ProcessAadByte(byte input)
		{
			((IDisposable)this.associatedText).Dispose();
		}

		// Token: 0x06009853 RID: 38995 RVA: 0x0021BFCC File Offset: 0x0021A1CC
		[Token(Token = "0x6009853")]
		[Address(RVA = "0x20E65F0", Offset = "0x20E4FF0", VA = "0x1820E65F0", Slot = "22")]
		public virtual void ProcessAadBytes(byte[] inBytes, int inOff, int len)
		{
			int num = this.associatedText.Read(inBytes, inOff, len);
		}

		// Token: 0x06009854 RID: 38996 RVA: 0x0021BFF0 File Offset: 0x0021A1F0
		[Token(Token = "0x6009854")]
		[Address(RVA = "0x20E6620", Offset = "0x20E5020", VA = "0x1820E6620", Slot = "23")]
		public virtual int ProcessByte(byte input, byte[] outBytes, int outOff)
		{
			MemoryStream memoryStream = this.data;
			return 0;
		}

		// Token: 0x06009855 RID: 38997 RVA: 0x0021C00C File Offset: 0x0021A20C
		[Token(Token = "0x6009855")]
		[Address(RVA = "0x20E6650", Offset = "0x20E5050", VA = "0x1820E6650", Slot = "24")]
		public virtual int ProcessBytes(byte[] inBytes, int inOff, int inLen, byte[] outBytes, int outOff)
		{
			Check.DataLength(inBytes, inOff, inOff, "Input buffer too short");
			int num = this.data.ReadByte();
			return 0;
		}

		// Token: 0x06009856 RID: 38998 RVA: 0x0021C03C File Offset: 0x0021A23C
		[Token(Token = "0x6009856")]
		[Address(RVA = "0x20E60A0", Offset = "0x20E4AA0", VA = "0x1820E60A0", Slot = "25")]
		public virtual int DoFinal(byte[] outBytes, int outOff)
		{
			MemoryStream memoryStream = this.data;
			long length = this.data.Length;
			throw new NullReferenceException();
		}

		// Token: 0x06009857 RID: 38999 RVA: 0x0021C064 File Offset: 0x0021A264
		[Token(Token = "0x6009857")]
		[Address(RVA = "0x20E6FD0", Offset = "0x20E59D0", VA = "0x1820E6FD0", Slot = "26")]
		public virtual void Reset()
		{
			IBlockCipher blockCipher = this.cipher;
			MemoryStream memoryStream = this.associatedText;
			((IDisposable)this.data).Dispose();
		}

		// Token: 0x06009858 RID: 39000 RVA: 0x0021C090 File Offset: 0x0021A290
		[Token(Token = "0x6009858")]
		[Address(RVA = "0x20E6200", Offset = "0x20E4C00", VA = "0x1820E6200", Slot = "27")]
		public virtual byte[] GetMac()
		{
			byte[] array = this.macBlock;
			int num = this.macSize;
			int num2 = 0;
			return Arrays.CopyOfRange(array, num2, num);
		}

		// Token: 0x06009859 RID: 39001 RVA: 0x0021C0B8 File Offset: 0x0021A2B8
		[Token(Token = "0x6009859")]
		[Address(RVA = "0x3F8880", Offset = "0x3F7280", VA = "0x1803F8880", Slot = "28")]
		public virtual int GetUpdateOutputSize(int len)
		{
			return 0;
		}

		// Token: 0x0600985A RID: 39002 RVA: 0x0021C0C8 File Offset: 0x0021A2C8
		[Token(Token = "0x600985A")]
		[Address(RVA = "0x20E6270", Offset = "0x20E4C70", VA = "0x1820E6270", Slot = "29")]
		public virtual int GetOutputSize(int len)
		{
			bool flag = this.data.CanWrite;
			int num = this.macSize;
			flag = (flag ? 1 : 0) + len != 0;
			if (!this.forEncryption)
			{
				if ((flag ? 1 : 0) < num)
				{
					return 0;
				}
				flag = (flag ? 1 : 0) - num != 0;
			}
			flag = (flag ? 1 : 0) + num != 0;
			throw new NullReferenceException();
		}

		// Token: 0x0600985B RID: 39003 RVA: 0x0021C108 File Offset: 0x0021A308
		[Token(Token = "0x600985B")]
		[Address(RVA = "0x20E6EE0", Offset = "0x20E58E0", VA = "0x1820E6EE0", Slot = "30")]
		public virtual byte[] ProcessPacket(byte[] input, int inOff, int inLen)
		{
			int num = this.macSize;
			if (!this.forEncryption)
			{
			}
			byte[] array = new byte[input];
			byte[] array2 = this.ProcessPacket(input, inOff, inLen);
			return array;
		}

		// Token: 0x0600985C RID: 39004 RVA: 0x0021C144 File Offset: 0x0021A344
		[Token(Token = "0x600985C")]
		[Address(RVA = "0x20E66F0", Offset = "0x20E50F0", VA = "0x1820E66F0", Slot = "31")]
		public virtual int ProcessPacket(byte[] input, int inOff, int inLen, byte[] output, int outOff)
		{
			/*
An exception occurred when decompiling this method (0600985C)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes.CcmBlockCipher::ProcessPacket(System.Byte[],System.Int32,System.Int32,System.Byte[],System.Int32)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_11D:
	stloc:InvalidCipherTextException(var_24_127, newobj:InvalidCipherTextException(InvalidCipherTextException::.ctor, ldstr:string("mac check in CCM failed")))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600985D RID: 39005 RVA: 0x0021C27C File Offset: 0x0021A47C
		[Token(Token = "0x600985D")]
		[Address(RVA = "0x20E5B90", Offset = "0x20E4590", VA = "0x1820E5B90")]
		private int CalculateMac(byte[] data, int dataOff, int dataLen, byte[] macBlock)
		{
			int num;
			CbcBlockCipherMac cbcBlockCipherMac = new CbcBlockCipherMac(this.cipher, dataOff, num);
			num = 0;
			byte[] array = new byte[16];
			bool flag = this.associatedText.CanWrite;
			byte[] array2 = this.initialAssociatedText;
			if (array2 == 0)
			{
			}
			int length = array2.Length;
			flag = (flag ? 1 : 0) + length != 0;
			if (flag > false)
			{
			}
			uint num2;
			flag = (flag ? 1U : 0U) - num2 != 0U;
			flag = flag - typeof(IMac).TypeHandle != null;
			array[0] = (flag ? 1 : 0);
			byte[] array3 = this.nonce;
			uint num3;
			array[0] = (byte)num3;
			byte[] array4 = this.nonce;
			int length2 = array4.Length;
			int num4 = 0;
			uint num5;
			Array.Copy(array4, num4, array, (int)num5, length2);
			if (dataLen > 0)
			{
				int num6 = array.Length;
				num6 -= (int)num5;
				num5 += (uint)1;
			}
			int length3 = array.Length;
			bool flag2 = this.associatedText.CanWrite;
			byte[] array5 = this.initialAssociatedText;
			int num7 = 0;
			if (array5 == 0)
			{
			}
			flag2 = (flag2 ? 1 : 0) + num7 != 0;
			if (flag2 > false)
			{
				bool canWrite = this.associatedText.CanWrite;
				if (this.initialAssociatedText == 0)
				{
				}
				byte[] array6 = this.initialAssociatedText;
				if (array6 != 0)
				{
					int length4 = array6.Length;
				}
				long length5 = this.associatedText.Length;
				MemoryStream memoryStream = this.associatedText;
				MemoryStream memoryStream2 = this.associatedText;
				long length6 = memoryStream2.Length;
				int num8 = 0;
				if (memoryStream2 < 0)
				{
				}
				uint num9;
				if (length6 < (long)num9)
				{
					num9 = (uint)((long)num9 - length6);
					if (num8 < cbcBlockCipherMac)
					{
						num8 += num8;
						num8++;
					}
					while (num8 != cbcBlockCipherMac)
					{
					}
				}
			}
			int num10 = 0;
			num10 += 3;
			num10 += 19;
			throw new NullReferenceException();
		}

		// Token: 0x0600985E RID: 39006 RVA: 0x0021C40C File Offset: 0x0021A60C
		[Token(Token = "0x600985E")]
		[Address(RVA = "0x20E6160", Offset = "0x20E4B60", VA = "0x1820E6160")]
		private int GetAssociatedTextLength()
		{
			bool flag = this.associatedText.CanWrite;
			byte[] array = this.initialAssociatedText;
			if (array == 0)
			{
				flag = flag + array != null;
			}
			int length = array.Length;
			flag = (flag ? 1 : 0) + length != 0;
			throw new NullReferenceException();
		}

		// Token: 0x0600985F RID: 39007 RVA: 0x0021C444 File Offset: 0x0021A644
		[Token(Token = "0x600985F")]
		[Address(RVA = "0x20E62E0", Offset = "0x20E4CE0", VA = "0x1820E62E0")]
		private bool HasAssociatedText()
		{
			bool flag = this.associatedText.CanWrite;
			byte[] array = this.initialAssociatedText;
			if (array == 0)
			{
				flag = flag + array != null;
				return flag > false;
			}
			int length = array.Length;
			flag = (flag ? 1 : 0) + length != 0;
			return flag > false;
		}

		// Token: 0x04006411 RID: 25617
		[Token(Token = "0x4006411")]
		private static readonly int BlockSize;

		// Token: 0x04006412 RID: 25618
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4006412")]
		private readonly IBlockCipher cipher;

		// Token: 0x04006413 RID: 25619
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x4006413")]
		private readonly byte[] macBlock;

		// Token: 0x04006414 RID: 25620
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x4006414")]
		private bool forEncryption;

		// Token: 0x04006415 RID: 25621
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x4006415")]
		private byte[] nonce;

		// Token: 0x04006416 RID: 25622
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
		[Token(Token = "0x4006416")]
		private byte[] initialAssociatedText;

		// Token: 0x04006417 RID: 25623
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
		[Token(Token = "0x4006417")]
		private int macSize;

		// Token: 0x04006418 RID: 25624
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
		[Token(Token = "0x4006418")]
		private ICipherParameters keyParam;

		// Token: 0x04006419 RID: 25625
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x48")]
		[Token(Token = "0x4006419")]
		private readonly MemoryStream associatedText;

		// Token: 0x0400641A RID: 25626
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x50")]
		[Token(Token = "0x400641A")]
		private readonly MemoryStream data;
	}
}