using System;
using System.Runtime.InteropServices;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
using Cpp2IlInjected;
using Hjg.Pngcs;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
{
	// Token: 0x02001582 RID: 5506
	[Token(Token = "0x2001582")]
	[StructLayout(3)]
	public class TlsAeadCipher : TlsCipher
	{
		// Token: 0x0600923D RID: 37437 RVA: 0x002067D8 File Offset: 0x002049D8
		[Token(Token = "0x600923D")]
		[Address(RVA = "0x1E8EA40", Offset = "0x1E8D440", VA = "0x181E8EA40")]
		public TlsAeadCipher(TlsContext context, IAeadBlockCipher clientWriteCipher, IAeadBlockCipher serverWriteCipher, int cipherKeySize, int macSize)
		{
		}

		// Token: 0x0600923E RID: 37438 RVA: 0x002067E8 File Offset: 0x002049E8
		[Token(Token = "0x600923E")]
		[Address(RVA = "0x1E8EA70", Offset = "0x1E8D470", VA = "0x181E8EA70")]
		internal TlsAeadCipher(TlsContext context, IAeadBlockCipher clientWriteCipher, IAeadBlockCipher serverWriteCipher, int cipherKeySize, int macSize, int nonceMode)
		{
			/*
An exception occurred when decompiling this method (0600923E)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls.TlsAeadCipher::.ctor(BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls.TlsContext,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes.IAeadBlockCipher,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes.IAeadBlockCipher,System.Int32,System.Int32,System.Int32)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_82:
	stloc:TlsFatalAlert(var_12_89, newobj:TlsFatalAlert(TlsFatalAlert::.ctor, ldloc:uint64[exp:uint8](var_13)))
	stloc:TlsFatalAlert(var_14_92, newobj:TlsFatalAlert(TlsFatalAlert::.ctor, ldloc:uint64[exp:uint8](var_15)))
}

   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: 0x0600923F RID: 37439 RVA: 0x00206888 File Offset: 0x00204A88
		[Token(Token = "0x600923F")]
		[Address(RVA = "0x1E8EA30", Offset = "0x1E8D430", VA = "0x181E8EA30", Slot = "7")]
		public virtual int GetPlaintextLimit(int ciphertextLimit)
		{
			return ciphertextLimit;
		}

		// Token: 0x06009240 RID: 37440 RVA: 0x00206898 File Offset: 0x00204A98
		[Token(Token = "0x6009240")]
		[Address(RVA = "0x1E8E530", Offset = "0x1E8CF30", VA = "0x181E8E530", Slot = "8")]
		public virtual byte[] EncodePlaintext(long seqNo, byte type, byte[] plaintext, int offset, int len)
		{
			byte[] array2;
			byte[] array4;
			for (;;)
			{
				byte[] array = this.encryptImplicitNonce;
				int num = this.record_iv_length;
				int length = array.Length;
				num += length;
				array2 = new byte[num];
				int num2 = this.nonceMode;
				if (num2 == 1)
				{
					byte[] array3 = this.encryptImplicitNonce;
					int length2 = array3.Length;
					int num3 = 0;
					int num4 = 0;
					Array.Copy(array3, num4, array2, num3, length2);
					int length3 = this.encryptImplicitNonce.Length;
					TlsUtilities.WriteUint64(seqNo, array2, length3);
					IAeadBlockCipher aeadBlockCipher = this.encryptCipher;
					int num5 = this.record_iv_length;
					num5 += num2;
					array4 = new byte[num5];
					int num6 = this.record_iv_length;
					if (num6 != 0)
					{
						int num7 = array2.Length;
						num7 -= num6;
						int num8 = 0;
						Array.Copy(array2, num7, array4, num8, num6);
					}
					int num9 = this.macSize;
					IAeadBlockCipher aeadBlockCipher2 = this.encryptCipher;
					IAeadBlockCipher aeadBlockCipher3 = this.encryptCipher;
					IAeadBlockCipher aeadBlockCipher4 = this.encryptCipher;
					AeadParameters aeadParameters;
					num9 += aeadParameters;
					if (num9 == array4.Length)
					{
						break;
					}
				}
				else if (num2 == 2)
				{
					goto Block_3;
				}
			}
			return array4;
			Block_3:
			int length4 = array2.Length;
			TlsUtilities.WriteUint64(seqNo, array2, length4);
			int num10 = 0;
			int i = 0;
			byte[] array5 = this.encryptImplicitNonce;
			while (i >= array5.Length)
			{
			}
			num10++;
			byte[] array6 = this.encryptImplicitNonce;
			throw new NullReferenceException();
		}

		// Token: 0x06009241 RID: 37441 RVA: 0x002069E0 File Offset: 0x00204BE0
		[Token(Token = "0x6009241")]
		[Address(RVA = "0x1E8E110", Offset = "0x1E8CB10", VA = "0x181E8E110", Slot = "9")]
		public virtual byte[] DecodeCiphertext(long seqNo, byte type, byte[] ciphertext, int offset, int len)
		{
			byte[] array6;
			for (;;)
			{
				byte[] array = this.decryptImplicitNonce;
				int num = this.record_iv_length;
				int length = array.Length;
				num += length;
				byte[] array2 = new byte[num];
				int num2 = this.nonceMode;
				if (num2 == 1)
				{
					byte[] array3 = this.decryptImplicitNonce;
					int length2 = array3.Length;
					int num3 = 0;
					int num4 = 0;
					Array.Copy(array3, num4, array2, num3, length2);
					int num5 = this.record_iv_length;
					int num6 = array2.Length;
					num6 -= num5;
					Array.Copy(ciphertext, (int)seqNo, array2, num6, num5);
				}
				if (num2 == 2)
				{
					int length3 = array2.Length;
					TlsUtilities.WriteUint64(seqNo, array2, length3);
					int num7 = 0;
					int num8 = 0;
					byte[] array4 = this.decryptImplicitNonce;
					if (num8 < array4.Length)
					{
						num7++;
						byte[] array5 = this.decryptImplicitNonce;
					}
					int num9 = this.record_iv_length;
					IAeadBlockCipher aeadBlockCipher = this.decryptCipher;
					array6 = new byte[num9];
					IAeadBlockCipher aeadBlockCipher2 = this.decryptCipher;
					IAeadBlockCipher aeadBlockCipher3 = this.decryptCipher;
					IAeadBlockCipher aeadBlockCipher4 = this.decryptCipher;
					AeadParameters aeadParameters;
					aeadParameters += aeadParameters;
					if (aeadParameters == array6.Length)
					{
						break;
					}
				}
			}
			return array6;
		}

		// Token: 0x06009242 RID: 37442 RVA: 0x00206B00 File Offset: 0x00204D00
		[Token(Token = "0x6009242")]
		[Address(RVA = "0x1E8E930", Offset = "0x1E8D330", VA = "0x181E8E930", Slot = "10")]
		protected virtual byte[] GetAdditionalData(long seqNo, byte type, int len)
		{
			byte[] array = new byte[13];
			int num = 0;
			TlsUtilities.WriteUint64(seqNo, array, num);
			TlsUtilities.WriteUint8(type, array, 8);
			TlsContext tlsContext = this.context;
			PngHelperInternal.WriteInt2tobytes(len, array, 11);
			return array;
		}

		// Token: 0x0400619B RID: 24987
		[Token(Token = "0x400619B")]
		public const int NONCE_RFC5288 = 1;

		// Token: 0x0400619C RID: 24988
		[Token(Token = "0x400619C")]
		internal const int NONCE_DRAFT_CHACHA20_POLY1305 = 2;

		// Token: 0x0400619D RID: 24989
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400619D")]
		protected readonly TlsContext context;

		// Token: 0x0400619E RID: 24990
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x400619E")]
		protected readonly int macSize;

		// Token: 0x0400619F RID: 24991
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x1C")]
		[Token(Token = "0x400619F")]
		protected readonly int record_iv_length;

		// Token: 0x040061A0 RID: 24992
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x40061A0")]
		protected readonly IAeadBlockCipher encryptCipher;

		// Token: 0x040061A1 RID: 24993
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40061A1")]
		protected readonly IAeadBlockCipher decryptCipher;

		// Token: 0x040061A2 RID: 24994
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40061A2")]
		protected readonly byte[] encryptImplicitNonce;

		// Token: 0x040061A3 RID: 24995
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40061A3")]
		protected readonly byte[] decryptImplicitNonce;

		// Token: 0x040061A4 RID: 24996
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
		[Token(Token = "0x40061A4")]
		protected readonly int nonceMode;
	}
}