using System; using System.Runtime.InteropServices; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters; 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 Cpp2IlInjected; namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers { // Token: 0x020015C7 RID: 5575 [Token(Token = "0x20015C7")] [StructLayout(3)] public class ECGost3410Signer : IDsaExt, IDsa { // Token: 0x170017D9 RID: 6105 // (get) Token: 0x06009501 RID: 38145 RVA: 0x0020F5E8 File Offset: 0x0020D7E8 [Token(Token = "0x170017D9")] public virtual string AlgorithmName { [Token(Token = "0x6009501")] [Address(RVA = "0x1E3D1C0", Offset = "0x1E3BBC0", VA = "0x181E3D1C0", Slot = "9")] get { return "ECGOST3410"; } } // Token: 0x06009502 RID: 38146 RVA: 0x0020F5FC File Offset: 0x0020D7FC [Token(Token = "0x6009502")] [Address(RVA = "0x1E3CB50", Offset = "0x1E3B550", VA = "0x181E3CB50", Slot = "10")] public virtual void Init(bool forSigning, ICipherParameters parameters) { /* An exception occurred when decompiling this method (06009502) ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.ECGost3410Signer::Init(System.Boolean,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters) ---> System.Exception: Basic block has to end with unconditional control flow. { IL_60: stloc:InvalidKeyException(var_8_6A, newobj:InvalidKeyException(InvalidKeyException::.ctor, ldstr:string("EC public key required for verification"))) } 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: 0x170017DA RID: 6106 // (get) Token: 0x06009503 RID: 38147 RVA: 0x0020F674 File Offset: 0x0020D874 [Token(Token = "0x170017DA")] public virtual BigInteger Order { [Token(Token = "0x6009503")] [Address(RVA = "0x1E3D1F0", Offset = "0x1E3BBF0", VA = "0x181E3D1F0", Slot = "11")] get { return this.key.parameters.n; } } // Token: 0x06009504 RID: 38148 RVA: 0x0020F698 File Offset: 0x0020D898 [Token(Token = "0x6009504")] [Address(RVA = "0x1E3C6F0", Offset = "0x1E3B0F0", VA = "0x181E3C6F0", Slot = "12")] public virtual BigInteger[] GenerateSignature(byte[] message) { BigInteger bigInteger; ECKeyParameters eckeyParameters; BigInteger n; do { byte[] array = new byte[message.Length]; int num = 0; int num2 = 0; int num3 = array.Length; if (num2 != num3) { num3 -= num; num++; } bigInteger = new BigInteger(1, array); eckeyParameters = this.key; n = eckeyParameters.parameters.n; } while (eckeyParameters == 0 || eckeyParameters == 0); int bitLength = n.BitLength; BigInteger bigInteger2; while (bigInteger2.sign == 0) { } int num4 = 0; if (num4 < message) { num4 += num4; num4++; } char c; string text = c.ToString(); BigInteger bigInteger3; while (bigInteger3.sign == num4) { } BigInteger bigInteger4 = bigInteger2.Multiply(bigInteger); BigInteger bigInteger5 = bigInteger2.Multiply(bigInteger3); BigInteger bigInteger6 = bigInteger4.Add(bigInteger5).Mod(n); while (bigInteger6.sign == 0) { } return new BigInteger[] { bigInteger3, bigInteger6 }; } // Token: 0x06009505 RID: 38149 RVA: 0x0020F78C File Offset: 0x0020D98C [Token(Token = "0x6009505")] [Address(RVA = "0x1E3CDE0", Offset = "0x1E3B7E0", VA = "0x181E3CDE0", Slot = "13")] public virtual bool VerifySignature(byte[] message, BigInteger r, BigInteger s) { ECKeyParameters eckeyParameters; do { byte[] array = new byte[message.Length]; int num = 0; int num2 = 0; int num3 = array.Length; if (num2 != num3) { num3 -= num; num++; } BigInteger bigInteger = new BigInteger(1, array); BigInteger n = this.key.parameters.n; BigInteger one = BigInteger.One; int num4 = r.CompareTo(one); int num5 = r.CompareTo(n); BigInteger one2 = BigInteger.One; int num6 = s.CompareTo(one2); int num7 = s.CompareTo(n); BigInteger bigInteger2 = bigInteger.ModInverse(n); BigInteger bigInteger3 = s.Multiply(bigInteger2).Mod(n); BigInteger bigInteger4 = n.Subtract(r).Multiply(bigInteger2); BigInteger bigInteger5 = bigInteger4.Mod(n); eckeyParameters = this.key; ECPoint g = eckeyParameters.parameters.g; } while (eckeyParameters == 0 || eckeyParameters == 0); ECPoint ecpoint; bool flag = ecpoint.IsNormalized(); bool flag2; if (!flag2) { sbyte b; string text = b.ToString(); } throw new NullReferenceException(); } // Token: 0x06009506 RID: 38150 RVA: 0x0020F890 File Offset: 0x0020DA90 [Token(Token = "0x6009506")] [Address(RVA = "0x1E3C6A0", Offset = "0x1E3B0A0", VA = "0x181E3C6A0", Slot = "14")] protected virtual ECMultiplier CreateBasePointMultiplier() { /* An exception occurred when decompiling this method (06009506) ICSharpCode.Decompiler.DecompilerException: Error decompiling BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier.ECMultiplier BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.ECGost3410Signer::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: 0x06009507 RID: 38151 RVA: 0x0020F8A4 File Offset: 0x0020DAA4 [Token(Token = "0x6009507")] [Address(RVA = "0x3C1670", Offset = "0x3C0070", VA = "0x1803C1670")] public ECGost3410Signer() { } // Token: 0x04006260 RID: 25184 [global::Cpp2IlInjected.FieldOffset(Offset = "0x10")] [Token(Token = "0x4006260")] private ECKeyParameters key; // Token: 0x04006261 RID: 25185 [global::Cpp2IlInjected.FieldOffset(Offset = "0x18")] [Token(Token = "0x4006261")] private SecureRandom random; } }