using System; 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: 0x02001C84 RID: 7300 [Token(Token = "0x2001C84")] public class ECGost3410Signer : IDsaExt, IDsa { // Token: 0x17001C77 RID: 7287 // (get) Token: 0x0600B4A9 RID: 46249 RVA: 0x0026FE3C File Offset: 0x0026E03C [Token(Token = "0x17001C77")] public virtual string AlgorithmName { [Token(Token = "0x600B4A9")] [Address(RVA = "0x2358400", Offset = "0x2357400", VA = "0x182358400", Slot = "9")] get { return "ECGOST3410"; } } // Token: 0x0600B4AA RID: 46250 RVA: 0x0026FE50 File Offset: 0x0026E050 [Token(Token = "0x600B4AA")] [Address(RVA = "0x2357D90", Offset = "0x2356D90", VA = "0x182357D90", Slot = "10")] public virtual void Init(bool forSigning, ICipherParameters parameters) { /* An exception occurred when decompiling this method (0600B4AA) 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: 0x17001C78 RID: 7288 // (get) Token: 0x0600B4AB RID: 46251 RVA: 0x0026FEC8 File Offset: 0x0026E0C8 [Token(Token = "0x17001C78")] public virtual BigInteger Order { [Token(Token = "0x600B4AB")] [Address(RVA = "0x2358430", Offset = "0x2357430", VA = "0x182358430", Slot = "11")] get { return this.key.parameters.n; } } // Token: 0x0600B4AC RID: 46252 RVA: 0x0026FEEC File Offset: 0x0026E0EC [Token(Token = "0x600B4AC")] [Address(RVA = "0x2357930", Offset = "0x2356930", VA = "0x182357930", 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: 0x0600B4AD RID: 46253 RVA: 0x0026FFE0 File Offset: 0x0026E1E0 [Token(Token = "0x600B4AD")] [Address(RVA = "0x2358020", Offset = "0x2357020", VA = "0x182358020", 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: 0x0600B4AE RID: 46254 RVA: 0x002700E4 File Offset: 0x0026E2E4 [Token(Token = "0x600B4AE")] [Address(RVA = "0x23578E0", Offset = "0x23568E0", VA = "0x1823578E0", Slot = "14")] protected virtual ECMultiplier CreateBasePointMultiplier() { /* An exception occurred when decompiling this method (0600B4AE) 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: 0x0600B4AF RID: 46255 RVA: 0x002700F8 File Offset: 0x0026E2F8 [Token(Token = "0x600B4AF")] [Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")] public ECGost3410Signer() { } // Token: 0x0400725C RID: 29276 [FieldOffset(Offset = "0x10")] [Token(Token = "0x400725C")] private ECKeyParameters key; // Token: 0x0400725D RID: 29277 [FieldOffset(Offset = "0x18")] [Token(Token = "0x400725D")] private SecureRandom random; } }