using System; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Digests; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Utilities; using BestHTTP.SecureProtocol.Org.BouncyCastle.Math; using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC; using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier; using BestHTTP.SecureProtocol.Org.BouncyCastle.Security; using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities; using Cpp2IlInjected; namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines { // Token: 0x02001CAA RID: 7338 [Token(Token = "0x2001CAA")] public class SM2Engine { // Token: 0x0600B8AE RID: 47278 RVA: 0x00291468 File Offset: 0x0028F668 [Token(Token = "0x600B8AE")] [Address(RVA = "0x1DFBA50", Offset = "0x1DFA850", VA = "0x181DFBA50")] public SM2Engine() { SM3Digest sm3Digest = new SM3Digest(); base..ctor(); this.mDigest = sm3Digest; } // Token: 0x0600B8AF RID: 47279 RVA: 0x00291488 File Offset: 0x0028F688 [Token(Token = "0x600B8AF")] [Address(RVA = "0x3FFB80", Offset = "0x3FE980", VA = "0x1803FFB80")] public SM2Engine(IDigest digest) { this.mDigest = digest; } // Token: 0x0600B8B0 RID: 47280 RVA: 0x002914A4 File Offset: 0x0028F6A4 [Token(Token = "0x600B8B0")] [Address(RVA = "0x1DFB2A0", Offset = "0x1DFA0A0", VA = "0x181DFB2A0", Slot = "4")] public virtual void Init(bool forEncryption, ICipherParameters param) { bool flag; for (;;) { this.mForEncryption = forEncryption; if (!forEncryption) { if (param == 0) { } int num = 0; if (param == 0) { continue; } this.mECKey = param; this.mECParams = num; } if (param != 0) { if (typeof(ParametersWithRandom).TypeHandle == 0) { } if (typeof(ParametersWithRandom).TypeHandle != 0) { this.mECKey = typeof(ParametersWithRandom).TypeHandle; this.mECParams = param; if (typeof(ParametersWithRandom).TypeHandle != 0 && typeof(ParametersWithRandom).TypeHandle != 0 && !flag) { break; } } } } this.mRandom = flag; string text = this.mECParams.curve.ToString(); this.mCurveLength = text; } // Token: 0x0600B8B1 RID: 47281 RVA: 0x00291540 File Offset: 0x0028F740 [Token(Token = "0x600B8B1")] [Address(RVA = "0x1DFB9A0", Offset = "0x1DFA7A0", VA = "0x181DFB9A0", Slot = "5")] public virtual byte[] ProcessBlock(byte[] input, int inOff, int inLen) { if (!this.mForEncryption) { return this.Decrypt(input, inOff, inLen); } return this.Encrypt(input, inOff, inLen); } // Token: 0x0600B8B2 RID: 47282 RVA: 0x0029156C File Offset: 0x0028F76C [Token(Token = "0x600B8B2")] [Address(RVA = "0x1DFA8A0", Offset = "0x1DF96A0", VA = "0x181DFA8A0", Slot = "6")] protected virtual ECMultiplier CreateBasePointMultiplier() { /* An exception occurred when decompiling this method (0600B8B2) ICSharpCode.Decompiler.DecompilerException: Error decompiling BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier.ECMultiplier BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.SM2Engine::CreateBasePointMultiplier() ---> System.Exception: Basic block has to end with unconditional control flow. { Block_0: stloc:FixedPointCombMultiplier(var_0_05, newobj:FixedPointCombMultiplier(FixedPointCombMultiplier::.ctor)) } 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 1660 */; } // Token: 0x0600B8B3 RID: 47283 RVA: 0x00291580 File Offset: 0x0028F780 [Token(Token = "0x600B8B3")] [Address(RVA = "0x1DFAD50", Offset = "0x1DF9B50", VA = "0x181DFAD50")] private byte[] Encrypt(byte[] input, int inOff, int inLen) { byte[] array; int num2; int num9; for (;;) { array = new byte[inLen]; int length = array.Length; int num = 0; Array.Copy(input, inLen, array, num, length); num2 = this.mECParams.n.BitLength; SecureRandom secureRandom = this.mRandom; BigInteger bigInteger = new BigInteger(num2, secureRandom); while (bigInteger.sign == 0) { } BigInteger n = this.mECParams.n; int num3 = 0; int num4 = bigInteger.CompareTo(n); ECPoint g = this.mECParams.g; int num5 = 0; if (num5 < num3) { num5 += num5; num5++; } int num6 = 0; ulong num8; int num7 = num8.CompareTo((ulong)num6); ECKeyParameters eckeyParameters = this.mECKey; num2 = num7; num8 += num8; num7 += 19; if (eckeyParameters != 0) { num9 = 0; if (eckeyParameters != 0) { break; } } } int length2 = array.Length; while (num9 == length2) { } num9++; IDigest digest = this.mDigest; byte[] array2 = DigestUtilities.DoFinal(this.mDigest); byte[][] array3 = new byte[3][]; if (num2 != 0) { } array3[0] = num2; array3[1] = array; if (array2 != 0) { } array3[2] = array2; return Arrays.ConcatenateAll(array3); } // Token: 0x0600B8B4 RID: 47284 RVA: 0x002916BC File Offset: 0x0028F8BC [Token(Token = "0x600B8B4")] [Address(RVA = "0x1DFA8F0", Offset = "0x1DF96F0", VA = "0x181DFA8F0")] private byte[] Decrypt(byte[] input, int inOff, int inLen) { /* An exception occurred when decompiling this method (0600B8B4) ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.SM2Engine::Decrypt(System.Byte[],System.Int32,System.Int32) ---> System.Exception: Basic block has to end with unconditional control flow. { IL_139: stloc:int32(var_28_13A, ldc.i4:int32(0)) call:void(Arrays::Fill, ldloc:uint8[](var_13_6C), ldloc:int32[exp:uint8](var_28_13A)) stloc:InvalidCipherTextException(var_29_14F, newobj:InvalidCipherTextException(InvalidCipherTextException::.ctor, ldstr:string("invalid cipher text"))) } 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 1660 */; } // Token: 0x0600B8B5 RID: 47285 RVA: 0x0029181C File Offset: 0x0028FA1C [Token(Token = "0x600B8B5")] [Address(RVA = "0x1DFB920", Offset = "0x1DFA720", VA = "0x181DFB920")] private bool NotEncrypted(byte[] encData, byte[] input, int inOff) { int num = 0; int length = encData.Length; if (num != length) { num++; } return true; } // Token: 0x0600B8B6 RID: 47286 RVA: 0x00291844 File Offset: 0x0028FA44 [Token(Token = "0x600B8B6")] [Address(RVA = "0x1DFB560", Offset = "0x1DFA360", VA = "0x181DFB560")] private void Kdf(IDigest digest, ECPoint c1, byte[] encData) { int num; byte[] array = new byte[num]; int num2 = 0; if (array != 0) { int curveCoordinateSystem = c1.CurveCoordinateSystem; ECFieldElement affineXCoord = c1.AffineXCoord; this.AddFieldElement(digest, affineXCoord); num2 += num2; num2++; } int num3 = 0; if (num3 < encData.Length) { if (array == 0) { int curveCoordinateSystem2 = c1.CurveCoordinateSystem; ECFieldElement affineXCoord2 = c1.AffineXCoord; this.AddFieldElement(digest, affineXCoord2); } int num4 = 0; Pack.UInt32_To_BE((uint)1, array, num4); int num5 = encData.Length; num5 -= num2; int num6; this.Xor(encData, array, num2, num6); num2 += num6; } } // Token: 0x0600B8B7 RID: 47287 RVA: 0x002918E0 File Offset: 0x0028FAE0 [Token(Token = "0x600B8B7")] [Address(RVA = "0x1DFB9D0", Offset = "0x1DFA7D0", VA = "0x181DFB9D0")] private void Xor(byte[] data, byte[] kdfOut, int dOff, int dRemaining) { int num = 0; num++; } // Token: 0x0600B8B8 RID: 47288 RVA: 0x002918FC File Offset: 0x0028FAFC [Token(Token = "0x600B8B8")] [Address(RVA = "0x1DFB860", Offset = "0x1DFA660", VA = "0x181DFB860")] private BigInteger NextK() { int bitLength = this.mECParams.n.BitLength; SecureRandom secureRandom = this.mRandom; BigInteger bigInteger = new BigInteger(bitLength, secureRandom); while (bigInteger.sign == 0) { } BigInteger n = this.mECParams.n; int num = bigInteger.CompareTo(n); return bigInteger; } // Token: 0x0600B8B9 RID: 47289 RVA: 0x00291950 File Offset: 0x0028FB50 [Token(Token = "0x600B8B9")] [Address(RVA = "0x1DFA810", Offset = "0x1DF9610", VA = "0x181DFA810")] private void AddFieldElement(IDigest digest, ECFieldElement v) { } // Token: 0x0400750E RID: 29966 [FieldOffset(Offset = "0x10")] [Token(Token = "0x400750E")] private readonly IDigest mDigest; // Token: 0x0400750F RID: 29967 [FieldOffset(Offset = "0x18")] [Token(Token = "0x400750F")] private bool mForEncryption; // Token: 0x04007510 RID: 29968 [FieldOffset(Offset = "0x20")] [Token(Token = "0x4007510")] private ECKeyParameters mECKey; // Token: 0x04007511 RID: 29969 [FieldOffset(Offset = "0x28")] [Token(Token = "0x4007511")] private ECDomainParameters mECParams; // Token: 0x04007512 RID: 29970 [FieldOffset(Offset = "0x30")] [Token(Token = "0x4007512")] private int mCurveLength; // Token: 0x04007513 RID: 29971 [FieldOffset(Offset = "0x38")] [Token(Token = "0x4007513")] private SecureRandom mRandom; } }