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: 0x02001D8A RID: 7562 [Token(Token = "0x2001D8A")] public class SM2Engine { // Token: 0x0600BC7C RID: 48252 RVA: 0x0029A57C File Offset: 0x0029877C [Token(Token = "0x600BC7C")] [Address(RVA = "0x27387B0", Offset = "0x27377B0", VA = "0x1827387B0")] public SM2Engine() { SM3Digest sm3Digest = new SM3Digest(); base..ctor(); this.mDigest = sm3Digest; } // Token: 0x0600BC7D RID: 48253 RVA: 0x0029A59C File Offset: 0x0029879C [Token(Token = "0x600BC7D")] [Address(RVA = "0x493D90", Offset = "0x492D90", VA = "0x180493D90")] public SM2Engine(IDigest digest) { this.mDigest = digest; } // Token: 0x0600BC7E RID: 48254 RVA: 0x0029A5B8 File Offset: 0x002987B8 [Token(Token = "0x600BC7E")] [Address(RVA = "0x2738000", Offset = "0x2737000", VA = "0x182738000", 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: 0x0600BC7F RID: 48255 RVA: 0x0029A654 File Offset: 0x00298854 [Token(Token = "0x600BC7F")] [Address(RVA = "0x2738700", Offset = "0x2737700", VA = "0x182738700", 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: 0x0600BC80 RID: 48256 RVA: 0x0029A680 File Offset: 0x00298880 [Token(Token = "0x600BC80")] [Address(RVA = "0x2737600", Offset = "0x2736600", VA = "0x182737600", Slot = "6")] protected virtual ECMultiplier CreateBasePointMultiplier() { /* An exception occurred when decompiling this method (0600BC80) 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 1663 */; } // Token: 0x0600BC81 RID: 48257 RVA: 0x0029A694 File Offset: 0x00298894 [Token(Token = "0x600BC81")] [Address(RVA = "0x2737AB0", Offset = "0x2736AB0", VA = "0x182737AB0")] 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: 0x0600BC82 RID: 48258 RVA: 0x0029A7D0 File Offset: 0x002989D0 [Token(Token = "0x600BC82")] [Address(RVA = "0x2737650", Offset = "0x2736650", VA = "0x182737650")] private byte[] Decrypt(byte[] input, int inOff, int inLen) { /* An exception occurred when decompiling this method (0600BC82) 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 1663 */; } // Token: 0x0600BC83 RID: 48259 RVA: 0x0029A930 File Offset: 0x00298B30 [Token(Token = "0x600BC83")] [Address(RVA = "0x2738680", Offset = "0x2737680", VA = "0x182738680")] private bool NotEncrypted(byte[] encData, byte[] input, int inOff) { int num = 0; int length = encData.Length; if (num != length) { num++; } return true; } // Token: 0x0600BC84 RID: 48260 RVA: 0x0029A958 File Offset: 0x00298B58 [Token(Token = "0x600BC84")] [Address(RVA = "0x27382C0", Offset = "0x27372C0", VA = "0x1827382C0")] 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: 0x0600BC85 RID: 48261 RVA: 0x0029A9F4 File Offset: 0x00298BF4 [Token(Token = "0x600BC85")] [Address(RVA = "0x2738730", Offset = "0x2737730", VA = "0x182738730")] private void Xor(byte[] data, byte[] kdfOut, int dOff, int dRemaining) { int num = 0; num++; } // Token: 0x0600BC86 RID: 48262 RVA: 0x0029AA10 File Offset: 0x00298C10 [Token(Token = "0x600BC86")] [Address(RVA = "0x27385C0", Offset = "0x27375C0", VA = "0x1827385C0")] 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: 0x0600BC87 RID: 48263 RVA: 0x0029AA64 File Offset: 0x00298C64 [Token(Token = "0x600BC87")] [Address(RVA = "0x2737570", Offset = "0x2736570", VA = "0x182737570")] private void AddFieldElement(IDigest digest, ECFieldElement v) { } // Token: 0x040076C7 RID: 30407 [FieldOffset(Offset = "0x10")] [Token(Token = "0x40076C7")] private readonly IDigest mDigest; // Token: 0x040076C8 RID: 30408 [FieldOffset(Offset = "0x18")] [Token(Token = "0x40076C8")] private bool mForEncryption; // Token: 0x040076C9 RID: 30409 [FieldOffset(Offset = "0x20")] [Token(Token = "0x40076C9")] private ECKeyParameters mECKey; // Token: 0x040076CA RID: 30410 [FieldOffset(Offset = "0x28")] [Token(Token = "0x40076CA")] private ECDomainParameters mECParams; // Token: 0x040076CB RID: 30411 [FieldOffset(Offset = "0x30")] [Token(Token = "0x40076CB")] private int mCurveLength; // Token: 0x040076CC RID: 30412 [FieldOffset(Offset = "0x38")] [Token(Token = "0x40076CC")] private SecureRandom mRandom; } }