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: 0x02001BA4 RID: 7076 [Token(Token = "0x2001BA4")] public class ECGost3410Signer : IDsaExt, IDsa { // Token: 0x17001BDA RID: 7130 // (get) Token: 0x0600B0DB RID: 45275 RVA: 0x00266C78 File Offset: 0x00264E78 [Token(Token = "0x17001BDA")] public virtual string AlgorithmName { [Token(Token = "0x600B0DB")] [Address(RVA = "0x18949E0", Offset = "0x18937E0", VA = "0x1818949E0", Slot = "9")] get { return "ECGOST3410"; } } // Token: 0x0600B0DC RID: 45276 RVA: 0x00266C8C File Offset: 0x00264E8C [Token(Token = "0x600B0DC")] [Address(RVA = "0x1894370", Offset = "0x1893170", VA = "0x181894370", Slot = "10")] public virtual void Init(bool forSigning, ICipherParameters parameters) { /* An exception occurred when decompiling this method (0600B0DC) 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: 0x17001BDB RID: 7131 // (get) Token: 0x0600B0DD RID: 45277 RVA: 0x00266D04 File Offset: 0x00264F04 [Token(Token = "0x17001BDB")] public virtual BigInteger Order { [Token(Token = "0x600B0DD")] [Address(RVA = "0x1894A10", Offset = "0x1893810", VA = "0x181894A10", Slot = "11")] get { return this.key.parameters.n; } } // Token: 0x0600B0DE RID: 45278 RVA: 0x00266D28 File Offset: 0x00264F28 [Token(Token = "0x600B0DE")] [Address(RVA = "0x1893F10", Offset = "0x1892D10", VA = "0x181893F10", 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: 0x0600B0DF RID: 45279 RVA: 0x00266E1C File Offset: 0x0026501C [Token(Token = "0x600B0DF")] [Address(RVA = "0x1894600", Offset = "0x1893400", VA = "0x181894600", 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: 0x0600B0E0 RID: 45280 RVA: 0x00266F20 File Offset: 0x00265120 [Token(Token = "0x600B0E0")] [Address(RVA = "0x1893EC0", Offset = "0x1892CC0", VA = "0x181893EC0", Slot = "14")] protected virtual ECMultiplier CreateBasePointMultiplier() { /* An exception occurred when decompiling this method (0600B0E0) 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: 0x0600B0E1 RID: 45281 RVA: 0x00266F34 File Offset: 0x00265134 [Token(Token = "0x600B0E1")] [Address(RVA = "0x3F5100", Offset = "0x3F3F00", VA = "0x1803F5100")] public ECGost3410Signer() { } // Token: 0x040070A3 RID: 28835 [FieldOffset(Offset = "0x10")] [Token(Token = "0x40070A3")] private ECKeyParameters key; // Token: 0x040070A4 RID: 28836 [FieldOffset(Offset = "0x18")] [Token(Token = "0x40070A4")] private SecureRandom random; } }