using System; using System.Runtime.InteropServices; using Cpp2IlInjected; namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines { // Token: 0x020016B9 RID: 5817 [Token(Token = "0x20016B9")] [StructLayout(3)] public class IdeaEngine : IBlockCipher { // Token: 0x06009BF9 RID: 39929 RVA: 0x00234D40 File Offset: 0x00232F40 [Token(Token = "0x6009BF9")] [Address(RVA = "0x3C1670", Offset = "0x3C0070", VA = "0x1803C1670")] public IdeaEngine() { this.Reset(); } // Token: 0x06009BFA RID: 39930 RVA: 0x00234D54 File Offset: 0x00232F54 [Token(Token = "0x6009BFA")] [Address(RVA = "0x2123440", Offset = "0x2121E40", VA = "0x182123440", Slot = "10")] public virtual void Init(bool forEncryption, ICipherParameters parameters) { /* An exception occurred when decompiling this method (06009BFA) ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.IdeaEngine::Init(System.Boolean,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters) ---> System.Exception: Basic block has to end with unconditional control flow. { IL_36: stloc:ArgumentException(var_7_47, newobj:ArgumentException(ArgumentException::.ctor, call:string(string::Concat, ldstr:string("invalid parameter passed to IDEA init - "), ldloc:string(var_6)))) } 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: 0x170018D2 RID: 6354 // (get) Token: 0x06009BFB RID: 39931 RVA: 0x00234DAC File Offset: 0x00232FAC [Token(Token = "0x170018D2")] public virtual string AlgorithmName { [Token(Token = "0x6009BFB")] [Address(RVA = "0x21241B0", Offset = "0x2122BB0", VA = "0x1821241B0", Slot = "11")] get { return "IDEA"; } } // Token: 0x170018D3 RID: 6355 // (get) Token: 0x06009BFC RID: 39932 RVA: 0x00234DC0 File Offset: 0x00232FC0 [Token(Token = "0x170018D3")] public virtual bool IsPartialBlockOkay { [Token(Token = "0x6009BFC")] [Address(RVA = "0x413970", Offset = "0x412370", VA = "0x180413970", Slot = "12")] get { } } // Token: 0x06009BFD RID: 39933 RVA: 0x00234DD0 File Offset: 0x00232FD0 [Token(Token = "0x6009BFD")] [Address(RVA = "0x56E570", Offset = "0x56CF70", VA = "0x18056E570", Slot = "13")] public virtual int GetBlockSize() { return 8; } // Token: 0x06009BFE RID: 39934 RVA: 0x00234DE0 File Offset: 0x00232FE0 [Token(Token = "0x6009BFE")] [Address(RVA = "0x2123FF0", Offset = "0x21229F0", VA = "0x182123FF0", Slot = "14")] public virtual int ProcessBlock(byte[] input, int inOff, byte[] output, int outOff) { /* An exception occurred when decompiling this method (06009BFE) ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.IdeaEngine::ProcessBlock(System.Byte[],System.Int32,System.Byte[],System.Int32) ---> System.Exception: Basic block has to end with unconditional control flow. { IL_1A: stloc:InvalidOperationException(var_3_24, newobj:InvalidOperationException(InvalidOperationException::.ctor, ldstr:string("IDEA engine not initialised"))) } 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.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878 at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878 at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1846 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: 0x06009BFF RID: 39935 RVA: 0x0000220F File Offset: 0x0000040F [Token(Token = "0x6009BFF")] [Address(RVA = "0x3C9F60", Offset = "0x3C8960", VA = "0x1803C9F60", Slot = "15")] public virtual void Reset() { throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method."); } // Token: 0x06009C00 RID: 39936 RVA: 0x00234E14 File Offset: 0x00233014 [Token(Token = "0x6009C00")] [Address(RVA = "0x2122B40", Offset = "0x2121540", VA = "0x182122B40")] private int BytesToWord(byte[] input, int inOff) { int length = input.Length; byte b; byte b2; b += b2; throw new NullReferenceException(); } // Token: 0x06009C01 RID: 39937 RVA: 0x00234E34 File Offset: 0x00233034 [Token(Token = "0x6009C01")] [Address(RVA = "0x2124100", Offset = "0x2122B00", VA = "0x182124100")] private void WordToBytes(int word, byte[] outBytes, int outOff) { } // Token: 0x06009C02 RID: 39938 RVA: 0x00234E48 File Offset: 0x00233048 [Token(Token = "0x6009C02")] [Address(RVA = "0x2123ED0", Offset = "0x21228D0", VA = "0x182123ED0")] private int Mul(int x, int y) { if (x != 0) { if (y != 0) { int num = x * y; int mask = IdeaEngine.MASK; bool flag = mask < num; flag = (flag ? 1 : 0) - num != 0; flag = (flag ? 1 : 0) + mask != 0; } int num2 = IdeaEngine.BASE; num2 -= x; } int num3 = IdeaEngine.BASE; num3 -= y; return IdeaEngine.MASK; } // Token: 0x06009C03 RID: 39939 RVA: 0x00234E90 File Offset: 0x00233090 [Token(Token = "0x6009C03")] [Address(RVA = "0x2122F00", Offset = "0x2121900", VA = "0x182122F00")] private void IdeaFunc(int[] workingKey, byte[] input, int inOff, byte[] outBytes, int outOff) { int num = 0; int length = input.Length; int num2 = inOff + 1; byte b; byte b2; b += b2; byte b3; b3 += b2; byte b4; b4 += b2; byte b5; b5 += b2; int num3 = workingKey[num]; int num4 = this.Mul((int)b, num3); int length2 = workingKey.Length; int num5; num5 += (int)b3; int length3 = workingKey.Length; int num6; num6 += (int)b4; num += 3; int num7 = workingKey[num]; num += 4; int num8 = workingKey[num]; int num9; num6 = num9; int num10; num6 += num10; num++; int mask = IdeaEngine.MASK; int num11 = workingKey[num]; int num12; num12 += mask; int num13; int num14; num13 += num14; num += 3; int num15 = workingKey[num]; } // Token: 0x06009C04 RID: 39940 RVA: 0x00234F58 File Offset: 0x00233158 [Token(Token = "0x6009C04")] [Address(RVA = "0x2122BA0", Offset = "0x21215A0", VA = "0x182122BA0")] private int[] ExpandKey(byte[] uKey) { int[] array = new int[52]; int num = 0; if (uKey.Length < 16) { byte[] array2 = new byte[0]; int length = uKey.Length; int num2 = array2.Length; int num3 = 0; num2 -= length; Array.Copy(uKey, num3, array2, num2, length); } int length2 = uKey.Length; num += 2; byte b; byte b2; b += b2; num++; array[0] = (int)b; int length3 = array.Length; uint num4; if (num4 != (uint)6) { int length4 = array.Length; } int length5 = array.Length; int length6 = array.Length; num4 += (uint)1; int num5; array[0] = num5; return array; } // Token: 0x06009C05 RID: 39941 RVA: 0x00235004 File Offset: 0x00233204 [Token(Token = "0x6009C05")] [Address(RVA = "0x2123D50", Offset = "0x2122750", VA = "0x182123D50")] private int MulInv(int x) { int num = IdeaEngine.BASE; uint num2; if (x != (int)num2) { int num3 = x * x; num2 += (uint)num3; if (x == (int)num2) { return x; } int num4 = x * (int)num2; num = x + num4; } num2 -= (uint)num; return IdeaEngine.MASK; } // Token: 0x06009C06 RID: 39942 RVA: 0x00235044 File Offset: 0x00233244 [Token(Token = "0x6009C06")] [Address(RVA = "0x2122AE0", Offset = "0x21214E0", VA = "0x182122AE0")] private int AddInv(int x) { return IdeaEngine.MASK; } // Token: 0x06009C07 RID: 39943 RVA: 0x00235058 File Offset: 0x00233258 [Token(Token = "0x6009C07")] [Address(RVA = "0x21235F0", Offset = "0x2121FF0", VA = "0x1821235F0")] private int[] InvertKey(int[] inKey) { int[] array = new int[52]; int num = inKey[0]; int num2 = this.MulInv(num); int mask = IdeaEngine.MASK; int num3 = inKey[1]; int num4 = inKey[1]; int num5 = this.MulInv(num4); array[25] = num5; array[25] = num3; array[24] = mask; array[24] = num2; int length = inKey.Length; uint num7; int num6 = inKey[(int)num7]; uint num8 = num7 + 1U; uint num10; uint num9 = num10 - 1U; int num11 = inKey[(int)num8]; array[0] = num11; num7 += (uint)2; array[0] = num6; int num12 = inKey[(int)num7]; int num13 = this.MulInv(num12); num7 += (uint)3; uint num14 = num7 + 1U; int mask2 = IdeaEngine.MASK; uint num15 = num14 + 1U; int num16 = inKey[(int)num14]; num15 += (uint)1; int num17 = inKey[(int)num15]; int num18; array[0] = num18; array[0] = mask2; array[0] = num16; ulong num19; num19 += (ulong)1L; array[0] = num13; int length2 = inKey.Length; int num20 = inKey[(int)num15]; uint num21 = num15 + 1U; int num22 = inKey[(int)num21]; int num23 = num16 - 1; array[0] = num22; array[0] = num20; int num24 = inKey[num23]; num15 += (uint)4; int mask3 = IdeaEngine.MASK; int num25 = inKey[(int)num15]; num16 += -4; int num26; array[0] = num26; array[0] = num25; array[0] = mask3; int num27; array[0] = num27; return array; } // Token: 0x06009C08 RID: 39944 RVA: 0x0023520C File Offset: 0x0023340C [Token(Token = "0x6009C08")] [Address(RVA = "0x2122EC0", Offset = "0x21218C0", VA = "0x182122EC0")] private int[] GenerateWorkingKey(bool forEncryption, byte[] userKey) { int[] array = this.ExpandKey(userKey); if (!forEncryption) { int[] array2 = this.InvertKey(array); } return array; } // Token: 0x0400665B RID: 26203 [Token(Token = "0x400665B")] private const int BLOCK_SIZE = 8; // Token: 0x0400665C RID: 26204 [global::Cpp2IlInjected.FieldOffset(Offset = "0x10")] [Token(Token = "0x400665C")] private int[] workingKey; // Token: 0x0400665D RID: 26205 [Token(Token = "0x400665D")] private static readonly int MASK; // Token: 0x0400665E RID: 26206 [Token(Token = "0x400665E")] private static readonly int BASE; } }