using System; using System.Runtime.CompilerServices; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Digests; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters; using BestHTTP.SecureProtocol.Org.BouncyCastle.Security; using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities; using Cpp2IlInjected; namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines { // Token: 0x02001D7C RID: 7548 [Token(Token = "0x2001D7C")] public class RC2WrapEngine : IWrapper { // Token: 0x0600BBE7 RID: 48103 RVA: 0x00297084 File Offset: 0x00295284 [Token(Token = "0x600BBE7")] [Address(RVA = "0x272D2F0", Offset = "0x272C2F0", VA = "0x18272D2F0", Slot = "8")] public virtual void Init(bool forWrapping, ICipherParameters parameters) { for (;;) { this.forWrapping = forWrapping; RC2Engine rc2Engine; rc2Engine.Reset(); CbcBlockCipher cbcBlockCipher = new CbcBlockCipher(rc2Engine); this.engine = cbcBlockCipher; if (parameters != 0 && parameters != 0) { int num = 0; if (parameters == 0) { continue; } this.sr = num; } SecureRandom secureRandom = new SecureRandom(); this.sr = secureRandom; if (parameters == 0 || parameters == 0) { break; } if (forWrapping && parameters != 0) { this.paramPlusIV = parameters; ParametersWithIV parametersWithIV = this.paramPlusIV; byte[] array; this.iv = array; ICipherParameters cipherParameters = parametersWithIV.parameters; if (array.Length == 8) { break; } } } this.parameters = parameters; if (this.forWrapping != parameters) { byte[] array2 = new byte[8]; SecureRandom secureRandom2 = this.sr; this.iv = array2; double num2 = secureRandom2.NextDouble(); ICipherParameters cipherParameters2 = this.parameters; byte[] array3 = this.iv; ParametersWithIV parametersWithIV2 = new ParametersWithIV(cipherParameters2, array3); this.paramPlusIV = parametersWithIV2; } } // Token: 0x17001D7A RID: 7546 // (get) Token: 0x0600BBE8 RID: 48104 RVA: 0x00297170 File Offset: 0x00295370 [Token(Token = "0x17001D7A")] public virtual string AlgorithmName { [Token(Token = "0x600BBE8")] [Address(RVA = "0x272E1C0", Offset = "0x272D1C0", VA = "0x18272E1C0", Slot = "9")] get { return "RC2"; } } // Token: 0x0600BBE9 RID: 48105 RVA: 0x00297184 File Offset: 0x00295384 [Token(Token = "0x600BBE9")] [Address(RVA = "0x272DC30", Offset = "0x272CC30", VA = "0x18272DC30", Slot = "10")] public virtual byte[] Wrap(byte[] input, int inOff, int length) { /* An exception occurred when decompiling this method (0600BBE9) ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.RC2WrapEngine::Wrap(System.Byte[],System.Int32,System.Int32) ---> System.Exception: Basic block has to end with unconditional control flow. { IL_27B: stloc:InvalidOperationException(var_52_285, newobj:InvalidOperationException(InvalidOperationException::.ctor, ldstr:string("Not multiple of block length"))) } 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: 0x0600BBEA RID: 48106 RVA: 0x00297418 File Offset: 0x00295618 [Token(Token = "0x600BBEA")] [Address(RVA = "0x272D5E0", Offset = "0x272C5E0", VA = "0x18272D5E0", Slot = "11")] public virtual byte[] Unwrap(byte[] input, int inOff, int length) { /* An exception occurred when decompiling this method (0600BBEA) ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.RC2WrapEngine::Unwrap(System.Byte[],System.Int32,System.Int32) ---> System.Exception: Basic block has to end with unconditional control flow. { IL_29E: stloc:InvalidOperationException(var_58_2A8, newobj:InvalidOperationException(InvalidOperationException::.ctor, ldstr:string("Not set for unwrapping"))) } 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: 0x0600BBEB RID: 48107 RVA: 0x002976D0 File Offset: 0x002958D0 [Token(Token = "0x600BBEB")] [Address(RVA = "0x272D190", Offset = "0x272C190", VA = "0x18272D190")] private byte[] CalculateCmsKeyChecksum(byte[] key) { IDigest digest = this.sha1; int length = key.Length; IDigest digest2 = this.sha1; byte[] array = new byte[8]; byte[] array2 = this.digest; int num = 0; int num2 = 0; ulong num3; Array.Copy(array2, num2, array, num, (int)num3); return array; } // Token: 0x0600BBEC RID: 48108 RVA: 0x00297720 File Offset: 0x00295920 [Token(Token = "0x600BBEC")] [Address(RVA = "0x272D270", Offset = "0x272C270", VA = "0x18272D270")] private bool CheckCmsKeyChecksum(byte[] key, byte[] checksum) { return Arrays.ConstantTimeAreEqual(this.CalculateCmsKeyChecksum(key), checksum); } // Token: 0x0600BBED RID: 48109 RVA: 0x0029773C File Offset: 0x0029593C [Token(Token = "0x600BBED")] [Address(RVA = "0x272E150", Offset = "0x272D150", VA = "0x18272E150")] public RC2WrapEngine() { Sha1Digest sha1Digest = new Sha1Digest(); this.sha1 = sha1Digest; byte[] array = new byte[20]; this.digest = array; base..ctor(); } // Token: 0x0600BBEE RID: 48110 RVA: 0x0029776C File Offset: 0x0029596C // Note: this type is marked as 'beforefieldinit'. [Token(Token = "0x600BBEE")] [Address(RVA = "0x272E0F0", Offset = "0x272D0F0", VA = "0x18272E0F0")] static RC2WrapEngine() { byte[] array = new byte[8]; RuntimeHelpers.InitializeArray(array, fieldof(.6DFD60679846B0E2064404E9EA3E1DDCE2C5709D).FieldHandle); RC2WrapEngine.IV2 = array; } // Token: 0x04007675 RID: 30325 [FieldOffset(Offset = "0x10")] [Token(Token = "0x4007675")] private CbcBlockCipher engine; // Token: 0x04007676 RID: 30326 [FieldOffset(Offset = "0x18")] [Token(Token = "0x4007676")] private ICipherParameters parameters; // Token: 0x04007677 RID: 30327 [FieldOffset(Offset = "0x20")] [Token(Token = "0x4007677")] private ParametersWithIV paramPlusIV; // Token: 0x04007678 RID: 30328 [FieldOffset(Offset = "0x28")] [Token(Token = "0x4007678")] private byte[] iv; // Token: 0x04007679 RID: 30329 [FieldOffset(Offset = "0x30")] [Token(Token = "0x4007679")] private bool forWrapping; // Token: 0x0400767A RID: 30330 [FieldOffset(Offset = "0x38")] [Token(Token = "0x400767A")] private SecureRandom sr; // Token: 0x0400767B RID: 30331 [Token(Token = "0x400767B")] private static readonly byte[] IV2; // Token: 0x0400767C RID: 30332 [FieldOffset(Offset = "0x40")] [Token(Token = "0x400767C")] private IDigest sha1; // Token: 0x0400767D RID: 30333 [FieldOffset(Offset = "0x48")] [Token(Token = "0x400767D")] private byte[] digest; } }