using System; using System.Runtime.InteropServices; using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters; using BestHTTP.SecureProtocol.Org.BouncyCastle.Math; using BestHTTP.SecureProtocol.Org.BouncyCastle.Security; using Cpp2IlInjected; namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers { // Token: 0x020015C5 RID: 5573 [Token(Token = "0x20015C5")] [StructLayout(3)] public class DsaSigner : IDsaExt, IDsa { // Token: 0x060094EC RID: 38124 RVA: 0x0020EFCC File Offset: 0x0020D1CC [Token(Token = "0x60094EC")] [Address(RVA = "0x1E3B720", Offset = "0x1E3A120", VA = "0x181E3B720")] public DsaSigner() { RandomDsaKCalculator randomDsaKCalculator = new RandomDsaKCalculator(); this.kCalculator = randomDsaKCalculator; } // Token: 0x060094ED RID: 38125 RVA: 0x0020EFEC File Offset: 0x0020D1EC [Token(Token = "0x60094ED")] [Address(RVA = "0x3C3A30", Offset = "0x3C2430", VA = "0x1803C3A30")] public DsaSigner(IDsaKCalculator kCalculator) { this.kCalculator = kCalculator; } // Token: 0x170017D5 RID: 6101 // (get) Token: 0x060094EE RID: 38126 RVA: 0x0020F008 File Offset: 0x0020D208 [Token(Token = "0x170017D5")] public virtual string AlgorithmName { [Token(Token = "0x60094EE")] [Address(RVA = "0x1E3B780", Offset = "0x1E3A180", VA = "0x181E3B780", Slot = "9")] get { return "DSA"; } } // Token: 0x060094EF RID: 38127 RVA: 0x0020F01C File Offset: 0x0020D21C [Token(Token = "0x60094EF")] [Address(RVA = "0x1E3B210", Offset = "0x1E39C10", VA = "0x181E3B210", Slot = "10")] public virtual void Init(bool forSigning, ICipherParameters parameters) { /* An exception occurred when decompiling this method (060094EF) ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.DsaSigner::Init(System.Boolean,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters) ---> System.Exception: Basic block has to end with unconditional control flow. { IL_5E: stloc:InvalidKeyException(var_9_68, newobj:InvalidKeyException(InvalidKeyException::.ctor, ldstr:string("DSA 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: 0x170017D6 RID: 6102 // (get) Token: 0x060094F0 RID: 38128 RVA: 0x0020F094 File Offset: 0x0020D294 [Token(Token = "0x170017D6")] public virtual BigInteger Order { [Token(Token = "0x60094F0")] [Address(RVA = "0x1E3B7B0", Offset = "0x1E3A1B0", VA = "0x181E3B7B0", Slot = "11")] get { return this.key.parameters.q; } } // Token: 0x060094F1 RID: 38129 RVA: 0x0020F0B8 File Offset: 0x0020D2B8 [Token(Token = "0x60094F1")] [Address(RVA = "0x1E3AE90", Offset = "0x1E39890", VA = "0x181E3AE90", Slot = "12")] public virtual BigInteger[] GenerateSignature(byte[] message) { DsaParameters parameters; BigInteger q; int num; for (;;) { parameters = this.key.parameters; q = parameters.q; DsaKeyParameters dsaKeyParameters = this.key; if (dsaKeyParameters != 0) { num = 0; if (dsaKeyParameters != 0) { break; } } } IDsaKCalculator dsaKCalculator = this.kCalculator; IDsaKCalculator dsaKCalculator2 = this.kCalculator; if (num == 0) { SecureRandom secureRandom = this.random; } IDsaKCalculator dsaKCalculator3 = this.kCalculator; BigInteger g = parameters.g; BigInteger bigInteger2; BigInteger bigInteger = bigInteger2.Mod(q); BigInteger bigInteger4; BigInteger bigInteger5; BigInteger bigInteger3 = bigInteger4.Multiply(bigInteger5).Mod(q); BigInteger[] array = new BigInteger[2]; if (bigInteger != 0) { } array[0] = bigInteger; if (bigInteger3 != 0) { } array[1] = bigInteger3; return array; } // Token: 0x060094F2 RID: 38130 RVA: 0x0020F164 File Offset: 0x0020D364 [Token(Token = "0x60094F2")] [Address(RVA = "0x1E3B4F0", Offset = "0x1E39EF0", VA = "0x181E3B4F0", Slot = "13")] public virtual bool VerifySignature(byte[] message, BigInteger r, BigInteger s) { DsaParameters parameters = this.key.parameters; BigInteger q = parameters.q; if (r.sign > 0 && q.CompareTo(r) > 0 && s.sign > 0 && q.CompareTo(s) > 0) { BigInteger bigInteger = s.ModInverse(q); BigInteger bigInteger3; BigInteger bigInteger2 = bigInteger3.Mod(q); BigInteger bigInteger4 = r.Multiply(bigInteger).Mod(q); BigInteger g = parameters.g; BigInteger p = parameters.p; BigInteger bigInteger5 = g.ModPow(bigInteger2, p); int nBitLength = bigInteger5.nBitLength; BigInteger bigInteger7; BigInteger bigInteger6 = bigInteger5.Multiply(bigInteger7).Mod(p).Mod(q); } throw new NullReferenceException(); } // Token: 0x060094F3 RID: 38131 RVA: 0x0020F214 File Offset: 0x0020D414 [Token(Token = "0x60094F3")] [Address(RVA = "0x1E3ADC0", Offset = "0x1E397C0", VA = "0x181E3ADC0", Slot = "14")] protected virtual BigInteger CalculateE(BigInteger n, byte[] message) { int num = 0; int num2 = n.BitLength; int length = message.Length; num += num2; num2 = Math.Min(length, num); int num3; BigInteger bigInteger = new BigInteger(1, message, num3, num2); num3 = 0; return bigInteger; } // Token: 0x060094F4 RID: 38132 RVA: 0x0020F254 File Offset: 0x0020D454 [Token(Token = "0x60094F4")] [Address(RVA = "0x1E3B1A0", Offset = "0x1E39BA0", VA = "0x181E3B1A0", Slot = "15")] protected virtual SecureRandom InitSecureRandom(bool needed, SecureRandom provided) { do { if (!needed) { } } while (provided != 0); return new SecureRandom(); } // Token: 0x04006259 RID: 25177 [global::Cpp2IlInjected.FieldOffset(Offset = "0x10")] [Token(Token = "0x4006259")] protected readonly IDsaKCalculator kCalculator; // Token: 0x0400625A RID: 25178 [global::Cpp2IlInjected.FieldOffset(Offset = "0x18")] [Token(Token = "0x400625A")] protected DsaKeyParameters key; // Token: 0x0400625B RID: 25179 [global::Cpp2IlInjected.FieldOffset(Offset = "0x20")] [Token(Token = "0x400625B")] protected SecureRandom random; } }