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niko
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using System;
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using System.Runtime.CompilerServices;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Digests;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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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: 0x02001C9C RID: 7324
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[Token(Token = "0x2001C9C")]
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public class RC2WrapEngine : IWrapper
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{
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// Token: 0x0600B819 RID: 47129 RVA: 0x0028DF78 File Offset: 0x0028C178
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[Token(Token = "0x600B819")]
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[Address(RVA = "0x1DF0590", Offset = "0x1DEF390", VA = "0x181DF0590", Slot = "8")]
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public virtual void Init(bool forWrapping, ICipherParameters parameters)
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{
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for (;;)
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{
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this.forWrapping = forWrapping;
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CbcBlockCipher cbcBlockCipher = new CbcBlockCipher(new RC2Engine());
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this.engine = cbcBlockCipher;
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if (parameters != 0 && parameters != 0)
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{
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int num = 0;
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if (parameters == 0)
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{
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continue;
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}
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this.sr = num;
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}
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SecureRandom secureRandom = new SecureRandom();
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this.sr = secureRandom;
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if (parameters == 0 || parameters == 0)
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{
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break;
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}
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if (forWrapping && parameters != 0)
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{
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this.paramPlusIV = parameters;
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ParametersWithIV parametersWithIV = this.paramPlusIV;
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byte[] array;
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this.iv = array;
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ICipherParameters cipherParameters = parametersWithIV.parameters;
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if (array.Length == 8)
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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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this.parameters = parameters;
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if (this.forWrapping != parameters)
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{
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byte[] array2 = new byte[8];
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SecureRandom secureRandom2 = this.sr;
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this.iv = array2;
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double num2 = secureRandom2.NextDouble();
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ICipherParameters cipherParameters2 = this.parameters;
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byte[] array3 = this.iv;
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ParametersWithIV parametersWithIV2 = new ParametersWithIV(cipherParameters2, array3);
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this.paramPlusIV = parametersWithIV2;
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}
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}
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// Token: 0x17001CDD RID: 7389
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// (get) Token: 0x0600B81A RID: 47130 RVA: 0x0028E05C File Offset: 0x0028C25C
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[Token(Token = "0x17001CDD")]
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public virtual string AlgorithmName
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{
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[Token(Token = "0x600B81A")]
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[Address(RVA = "0x1DF1460", Offset = "0x1DF0260", VA = "0x181DF1460", Slot = "9")]
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get
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{
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return "RC2";
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}
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}
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// Token: 0x0600B81B RID: 47131 RVA: 0x0028E070 File Offset: 0x0028C270
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[Token(Token = "0x600B81B")]
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[Address(RVA = "0x1DF0ED0", Offset = "0x1DEFCD0", VA = "0x181DF0ED0", Slot = "10")]
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public virtual byte[] Wrap(byte[] input, int inOff, int length)
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{
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/*
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An exception occurred when decompiling this method (0600B81B)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.RC2WrapEngine::Wrap(System.Byte[],System.Int32,System.Int32)
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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IL_27B:
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stloc:InvalidOperationException(var_52_285, newobj:InvalidOperationException(InvalidOperationException::.ctor, ldstr:string("Not multiple of block length")))
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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 1660
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*/;
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}
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// Token: 0x0600B81C RID: 47132 RVA: 0x0028E304 File Offset: 0x0028C504
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[Token(Token = "0x600B81C")]
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[Address(RVA = "0x1DF0880", Offset = "0x1DEF680", VA = "0x181DF0880", Slot = "11")]
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public virtual byte[] Unwrap(byte[] input, int inOff, int length)
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{
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/*
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An exception occurred when decompiling this method (0600B81C)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.RC2WrapEngine::Unwrap(System.Byte[],System.Int32,System.Int32)
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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IL_29E:
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stloc:InvalidOperationException(var_58_2A8, newobj:InvalidOperationException(InvalidOperationException::.ctor, ldstr:string("Not set for unwrapping")))
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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 1660
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*/;
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}
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// Token: 0x0600B81D RID: 47133 RVA: 0x0028E5BC File Offset: 0x0028C7BC
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[Token(Token = "0x600B81D")]
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[Address(RVA = "0x1DF0430", Offset = "0x1DEF230", VA = "0x181DF0430")]
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private byte[] CalculateCmsKeyChecksum(byte[] key)
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{
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IDigest digest = this.sha1;
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int length = key.Length;
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IDigest digest2 = this.sha1;
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byte[] array = new byte[8];
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byte[] array2 = this.digest;
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int num = 0;
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int num2 = 0;
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ulong num3;
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Array.Copy(array2, num2, array, num, (int)num3);
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return array;
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}
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// Token: 0x0600B81E RID: 47134 RVA: 0x0028E60C File Offset: 0x0028C80C
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[Token(Token = "0x600B81E")]
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[Address(RVA = "0x1DF0510", Offset = "0x1DEF310", VA = "0x181DF0510")]
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private bool CheckCmsKeyChecksum(byte[] key, byte[] checksum)
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{
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return Arrays.ConstantTimeAreEqual(this.CalculateCmsKeyChecksum(key), checksum);
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}
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// Token: 0x0600B81F RID: 47135 RVA: 0x0028E628 File Offset: 0x0028C828
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[Token(Token = "0x600B81F")]
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[Address(RVA = "0x1DF13F0", Offset = "0x1DF01F0", VA = "0x181DF13F0")]
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public RC2WrapEngine()
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{
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Sha1Digest sha1Digest = new Sha1Digest();
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this.sha1 = sha1Digest;
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byte[] array = new byte[20];
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this.digest = array;
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base..ctor();
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}
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// Token: 0x0600B820 RID: 47136 RVA: 0x0028E658 File Offset: 0x0028C858
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// Note: this type is marked as 'beforefieldinit'.
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[Token(Token = "0x600B820")]
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[Address(RVA = "0x1DF1390", Offset = "0x1DF0190", VA = "0x181DF1390")]
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static RC2WrapEngine()
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{
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byte[] array = new byte[8];
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RuntimeHelpers.InitializeArray(array, fieldof(<PrivateImplementationDetails>.6DFD60679846B0E2064404E9EA3E1DDCE2C5709D).FieldHandle);
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RC2WrapEngine.IV2 = array;
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}
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// Token: 0x040074BC RID: 29884
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[FieldOffset(Offset = "0x10")]
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[Token(Token = "0x40074BC")]
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private CbcBlockCipher engine;
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// Token: 0x040074BD RID: 29885
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[FieldOffset(Offset = "0x18")]
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[Token(Token = "0x40074BD")]
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private ICipherParameters parameters;
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// Token: 0x040074BE RID: 29886
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[FieldOffset(Offset = "0x20")]
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[Token(Token = "0x40074BE")]
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private ParametersWithIV paramPlusIV;
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// Token: 0x040074BF RID: 29887
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[FieldOffset(Offset = "0x28")]
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[Token(Token = "0x40074BF")]
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private byte[] iv;
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// Token: 0x040074C0 RID: 29888
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[FieldOffset(Offset = "0x30")]
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[Token(Token = "0x40074C0")]
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private bool forWrapping;
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// Token: 0x040074C1 RID: 29889
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[FieldOffset(Offset = "0x38")]
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[Token(Token = "0x40074C1")]
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private SecureRandom sr;
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// Token: 0x040074C2 RID: 29890
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[Token(Token = "0x40074C2")]
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private static readonly byte[] IV2;
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// Token: 0x040074C3 RID: 29891
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[FieldOffset(Offset = "0x40")]
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[Token(Token = "0x40074C3")]
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private IDigest sha1;
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// Token: 0x040074C4 RID: 29892
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[FieldOffset(Offset = "0x48")]
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[Token(Token = "0x40074C4")]
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private byte[] digest;
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}
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}
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