scripts
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niko
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using System;
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using System.Runtime.InteropServices;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using Cpp2IlInjected;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines
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{
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// Token: 0x020016BA RID: 5818
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[Token(Token = "0x20016BA")]
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[StructLayout(3)]
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public class IesEngine
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{
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// Token: 0x06009C0A RID: 39946 RVA: 0x00235240 File Offset: 0x00233440
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[Token(Token = "0x6009C0A")]
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[Address(RVA = "0x2124FF0", Offset = "0x21239F0", VA = "0x182124FF0")]
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public IesEngine(IBasicAgreement agree, IDerivationFunction kdf, IMac mac)
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{
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this.agree = agree;
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this.kdf = kdf;
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this.mac = mac;
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byte[] array = new byte[0];
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this.macBuf = array;
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}
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// Token: 0x06009C0B RID: 39947 RVA: 0x0023527C File Offset: 0x0023347C
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[Token(Token = "0x6009C0B")]
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[Address(RVA = "0x2124F50", Offset = "0x2123950", VA = "0x182124F50")]
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public IesEngine(IBasicAgreement agree, IDerivationFunction kdf, IMac mac, BufferedBlockCipher cipher)
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{
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this.agree = agree;
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this.kdf = kdf;
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this.mac = mac;
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byte[] array = new byte[0];
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this.macBuf = array;
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this.cipher = 0;
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}
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// Token: 0x06009C0C RID: 39948 RVA: 0x002352C0 File Offset: 0x002334C0
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[Token(Token = "0x6009C0C")]
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[Address(RVA = "0x2124C80", Offset = "0x2123680", VA = "0x182124C80", Slot = "4")]
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public virtual void Init(bool forEncryption, ICipherParameters privParameters, ICipherParameters pubParameters, ICipherParameters iesParameters)
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{
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this.forEncryption = forEncryption;
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this.privParam = privParameters;
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this.pubParam = pubParameters;
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this.param = 0;
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}
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// Token: 0x06009C0D RID: 39949 RVA: 0x002352EC File Offset: 0x002334EC
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[Token(Token = "0x6009C0D")]
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[Address(RVA = "0x21241E0", Offset = "0x2122BE0", VA = "0x1821241E0")]
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private byte[] DecryptBlock(byte[] in_enc, int inOff, int inLen, byte[] z)
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{
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/*
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An exception occurred when decompiling this method (06009C0D)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.IesEngine::DecryptBlock(System.Byte[],System.Int32,System.Int32,System.Byte[])
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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IL_130:
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stloc:InvalidCipherTextException(var_34_13A, newobj:InvalidCipherTextException(InvalidCipherTextException::.ctor, ldstr:string("Invalid MAC.")))
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}
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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
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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
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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
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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
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--- End of inner exception stack trace ---
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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
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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
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*/;
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}
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// Token: 0x06009C0E RID: 39950 RVA: 0x00235434 File Offset: 0x00233634
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[Token(Token = "0x6009C0E")]
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[Address(RVA = "0x21246D0", Offset = "0x21230D0", VA = "0x1821246D0")]
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private byte[] EncryptBlock(byte[] input, int inOff, int inLen, byte[] z)
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{
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int num;
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int num2;
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for (;;)
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{
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byte[] derivation = this.param.derivation;
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IesParameters iesParameters = this.param;
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num = iesParameters.macKeySize;
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if (this.cipher == (ulong)0L)
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{
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goto IL_A2;
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}
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if (iesParameters != 0)
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{
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num2 = 0;
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if (iesParameters != 0)
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{
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break;
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}
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}
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}
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num += typeof(IesWithCipherParameters).TypeHandle;
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KdfParameters kdfParameters;
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byte[] array = this.GenerateKdfBytes(kdfParameters, num2);
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string algorithmName = this.cipher.AlgorithmName;
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int blockSize = this.cipher.GetBlockSize();
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byte[] array2 = new byte[inLen];
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BufferedBlockCipher bufferedBlockCipher = this.cipher;
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BufferedBlockCipher bufferedBlockCipher2 = this.cipher;
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IMac mac = this.mac;
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byte[] array3 = new byte[0];
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int num3 = 0;
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int num4 = 0;
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Array.Copy(array2, num4, array3, num3, inLen);
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IL_A2:
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IMac mac2 = this.mac;
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byte[] array4 = new byte[0];
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int num5 = 0;
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if (inLen != 0)
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{
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num5++;
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while (num5 != inLen)
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{
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}
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}
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byte[] array5;
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KeyParameter keyParameter = new KeyParameter(array5, inLen, num);
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IesParameters iesParameters2 = this.param;
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IMac mac3 = this.mac;
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byte[] encoding = iesParameters2.encoding;
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IMac mac4 = this.mac;
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IMac mac5 = this.mac;
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int length = encoding.Length;
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IMac mac6 = this.mac;
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return array4;
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}
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// Token: 0x06009C0F RID: 39951 RVA: 0x00235554 File Offset: 0x00233754
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[Token(Token = "0x6009C0F")]
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[Address(RVA = "0x2124B70", Offset = "0x2123570", VA = "0x182124B70")]
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private byte[] GenerateKdfBytes(KdfParameters kParam, int length)
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{
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byte[] array = new byte[length];
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IDerivationFunction derivationFunction = this.kdf;
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IDerivationFunction derivationFunction2 = this.kdf;
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int num = 0;
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int length2 = array.Length;
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if (num < derivationFunction)
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{
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num += num;
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num++;
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}
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return array;
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}
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// Token: 0x06009C10 RID: 39952 RVA: 0x00235598 File Offset: 0x00233798
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[Token(Token = "0x6009C10")]
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[Address(RVA = "0x2124D40", Offset = "0x2123740", VA = "0x182124D40", Slot = "5")]
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public virtual byte[] ProcessBlock(byte[] input, int inOff, int inLen)
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{
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int num;
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byte[] array3;
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do
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{
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num = 0;
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IBasicAgreement basicAgreement = this.agree;
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IBasicAgreement basicAgreement2 = this.agree;
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ICipherParameters cipherParameters = this.pubParam;
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if (num < basicAgreement)
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{
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num += num;
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num++;
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}
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IBasicAgreement basicAgreement3 = this.agree;
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byte[] array2;
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if (this.forEncryption)
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{
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byte[] array = this.EncryptBlock(input, inOff, inLen, array2);
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}
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array3 = this.DecryptBlock(input, inOff, inLen, array2);
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int length = array2.Length;
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int num2 = 0;
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Array.Clear(array2, num2, length);
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if (num != -1)
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{
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}
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}
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while (num != 0);
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return array3;
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}
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// Token: 0x0400665F RID: 26207
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
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[Token(Token = "0x400665F")]
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private readonly IBasicAgreement agree;
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// Token: 0x04006660 RID: 26208
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
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[Token(Token = "0x4006660")]
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private readonly IDerivationFunction kdf;
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// Token: 0x04006661 RID: 26209
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
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[Token(Token = "0x4006661")]
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private readonly IMac mac;
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// Token: 0x04006662 RID: 26210
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
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[Token(Token = "0x4006662")]
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private readonly BufferedBlockCipher cipher;
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// Token: 0x04006663 RID: 26211
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
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[Token(Token = "0x4006663")]
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private readonly byte[] macBuf;
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// Token: 0x04006664 RID: 26212
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
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[Token(Token = "0x4006664")]
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private bool forEncryption;
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// Token: 0x04006665 RID: 26213
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
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[Token(Token = "0x4006665")]
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private ICipherParameters privParam;
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// Token: 0x04006666 RID: 26214
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x48")]
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[Token(Token = "0x4006666")]
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private ICipherParameters pubParam;
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// Token: 0x04006667 RID: 26215
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x50")]
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[Token(Token = "0x4006667")]
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private IesParameters param;
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}
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}
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