scripts
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niko
+278
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using System;
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using System.Runtime.InteropServices;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
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using Cpp2IlInjected;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers
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{
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// Token: 0x020015C6 RID: 5574
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[Token(Token = "0x20015C6")]
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[StructLayout(3)]
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public class ECDsaSigner : IDsaExt, IDsa
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{
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// Token: 0x060094F5 RID: 38133 RVA: 0x0020F270 File Offset: 0x0020D470
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[Token(Token = "0x60094F5")]
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[Address(RVA = "0x1E3C5E0", Offset = "0x1E3AFE0", VA = "0x181E3C5E0")]
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public ECDsaSigner()
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{
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RandomDsaKCalculator randomDsaKCalculator = new RandomDsaKCalculator();
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this.kCalculator = randomDsaKCalculator;
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}
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// Token: 0x060094F6 RID: 38134 RVA: 0x0020F290 File Offset: 0x0020D490
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[Token(Token = "0x60094F6")]
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[Address(RVA = "0x3C3A30", Offset = "0x3C2430", VA = "0x1803C3A30")]
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public ECDsaSigner(IDsaKCalculator kCalculator)
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{
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this.kCalculator = kCalculator;
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}
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// Token: 0x170017D7 RID: 6103
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// (get) Token: 0x060094F7 RID: 38135 RVA: 0x0020F2AC File Offset: 0x0020D4AC
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[Token(Token = "0x170017D7")]
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public virtual string AlgorithmName
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{
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[Token(Token = "0x60094F7")]
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[Address(RVA = "0x1E3C640", Offset = "0x1E3B040", VA = "0x181E3C640", Slot = "9")]
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get
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{
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return "ECDSA";
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}
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}
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// Token: 0x060094F8 RID: 38136 RVA: 0x0020F2C0 File Offset: 0x0020D4C0
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[Token(Token = "0x60094F8")]
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[Address(RVA = "0x1E3BEB0", Offset = "0x1E3A8B0", VA = "0x181E3BEB0", Slot = "10")]
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public virtual void Init(bool forSigning, ICipherParameters parameters)
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{
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/*
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An exception occurred when decompiling this method (060094F8)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.ECDsaSigner::Init(System.Boolean,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters)
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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IL_75:
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stloc:InvalidKeyException(var_11_7F, newobj:InvalidKeyException(InvalidKeyException::.ctor, ldstr:string("EC public key required for verification")))
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}
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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
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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
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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
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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
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--- End of inner exception stack trace ---
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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
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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
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*/;
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}
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// Token: 0x170017D8 RID: 6104
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// (get) Token: 0x060094F9 RID: 38137 RVA: 0x0020F350 File Offset: 0x0020D550
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[Token(Token = "0x170017D8")]
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public virtual BigInteger Order
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{
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[Token(Token = "0x60094F9")]
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[Address(RVA = "0x1E3C670", Offset = "0x1E3B070", VA = "0x181E3C670", Slot = "11")]
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get
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{
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return this.key.parameters.n;
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}
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}
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// Token: 0x060094FA RID: 38138 RVA: 0x0020F374 File Offset: 0x0020D574
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[Token(Token = "0x60094FA")]
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[Address(RVA = "0x1E3B8F0", Offset = "0x1E3A2F0", VA = "0x181E3B8F0", Slot = "12")]
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public virtual BigInteger[] GenerateSignature(byte[] message)
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{
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BigInteger n;
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ECKeyParameters eckeyParameters;
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do
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{
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n = this.key.parameters.n;
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eckeyParameters = this.key;
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}
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while (eckeyParameters == 0 || eckeyParameters == 0);
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IDsaKCalculator dsaKCalculator = this.kCalculator;
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IDsaKCalculator dsaKCalculator2 = this.kCalculator;
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if (eckeyParameters == 0)
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{
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SecureRandom secureRandom = this.random;
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}
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int num = 0;
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IDsaKCalculator dsaKCalculator3 = this.kCalculator;
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if (num < dsaKCalculator2)
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{
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num += num;
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num++;
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}
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uint num2;
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if (num < (int)num2)
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{
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num += num;
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num++;
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}
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char c;
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string text = c.ToString();
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BigInteger bigInteger;
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while (bigInteger.sign == 0)
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{
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}
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BigInteger bigInteger3;
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BigInteger bigInteger4;
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BigInteger bigInteger2 = bigInteger3.Multiply(bigInteger4).Mod(n);
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while (bigInteger2.sign == 0)
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{
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}
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return new BigInteger[] { bigInteger, bigInteger2 };
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}
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// Token: 0x060094FB RID: 38139 RVA: 0x0020F448 File Offset: 0x0020D648
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[Token(Token = "0x60094FB")]
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[Address(RVA = "0x1E3C190", Offset = "0x1E3AB90", VA = "0x181E3C190", Slot = "13")]
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public virtual bool VerifySignature(byte[] message, BigInteger r, BigInteger s)
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{
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BigInteger n = this.key.parameters.n;
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int num = r.CompareTo(n);
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int num2 = s.CompareTo(n);
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BigInteger bigInteger = s.ModInverse(n);
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BigInteger bigInteger3;
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BigInteger bigInteger2 = bigInteger3.Mod(n);
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BigInteger bigInteger4 = r.Multiply(bigInteger);
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int num3 = 0;
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BigInteger bigInteger5 = bigInteger4.Mod(n);
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ECPoint ecpoint = ECAlgorithms.SumOfTwoMultiplies(this.key.parameters.g, bigInteger2, num3, bigInteger5);
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if (!ecpoint.IsInfinity)
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{
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bool flag = ecpoint.SatisfiesOrder();
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if (flag && flag)
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{
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BigInteger eight = ECDsaSigner.Eight;
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ECMultiplier ecmultiplier = this.CreateBasePointMultiplier();
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if (ecmultiplier != 0 && ecmultiplier == 0)
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{
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ECFieldElement affineYCoord = ecpoint.AffineYCoord;
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if (flag.GetTypeCode() != TypeCode.Empty)
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{
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int num4 = flag.CompareTo(r);
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bool flag2;
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if (!flag2)
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{
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BigInteger bigInteger6 = r.Add(n);
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}
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return true;
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}
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goto IL_DD;
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}
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}
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bool flag3 = ecpoint.IsNormalized();
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sbyte b;
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string text = b.ToString();
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}
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IL_DD:
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throw new NullReferenceException();
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}
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// Token: 0x060094FC RID: 38140 RVA: 0x0020F538 File Offset: 0x0020D738
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[Token(Token = "0x60094FC")]
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[Address(RVA = "0x1E3B7E0", Offset = "0x1E3A1E0", VA = "0x181E3B7E0", Slot = "14")]
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protected virtual BigInteger CalculateE(BigInteger n, byte[] message)
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{
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int num = message.Length;
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BigInteger bigInteger = new BigInteger(1, message);
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if (n.BitLength < num)
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{
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int bitLength = n.BitLength;
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num -= bitLength;
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BigInteger bigInteger2 = bigInteger.ShiftRight(num);
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}
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return bigInteger;
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}
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// Token: 0x060094FD RID: 38141 RVA: 0x0020F578 File Offset: 0x0020D778
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[Token(Token = "0x60094FD")]
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[Address(RVA = "0x1E3B8A0", Offset = "0x1E3A2A0", VA = "0x181E3B8A0", Slot = "15")]
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protected virtual ECMultiplier CreateBasePointMultiplier()
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{
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/*
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An exception occurred when decompiling this method (060094FD)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier.ECMultiplier BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.ECDsaSigner::CreateBasePointMultiplier()
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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Block_0:
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stloc:FixedPointCombMultiplier(var_0_05, newobj:FixedPointCombMultiplier(FixedPointCombMultiplier::.ctor))
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}
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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
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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
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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
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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
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--- End of inner exception stack trace ---
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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
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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
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*/;
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}
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// Token: 0x060094FE RID: 38142 RVA: 0x0020F58C File Offset: 0x0020D78C
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[Token(Token = "0x60094FE")]
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[Address(RVA = "0x1E3BD90", Offset = "0x1E3A790", VA = "0x181E3BD90", Slot = "16")]
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protected virtual ECFieldElement GetDenominator(int coordinateSystem, ECPoint p)
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{
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if (coordinateSystem <= 6)
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{
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BigInteger bigInteger = p.YCoord.ToBigInteger();
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bool flag = p.SatisfiesCurveEquation();
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}
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throw new NullReferenceException();
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}
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// Token: 0x060094FF RID: 38143 RVA: 0x0020F5B8 File Offset: 0x0020D7B8
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[Token(Token = "0x60094FF")]
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[Address(RVA = "0x1E3BE40", Offset = "0x1E3A840", VA = "0x181E3BE40", Slot = "17")]
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protected virtual SecureRandom InitSecureRandom(bool needed, SecureRandom provided)
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{
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do
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{
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if (!needed)
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{
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}
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}
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while (provided != 0);
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return new SecureRandom();
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}
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// Token: 0x06009500 RID: 38144 RVA: 0x0020F5D4 File Offset: 0x0020D7D4
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// Note: this type is marked as 'beforefieldinit'.
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[Token(Token = "0x6009500")]
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[Address(RVA = "0x1E3C580", Offset = "0x1E3AF80", VA = "0x181E3C580")]
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static ECDsaSigner()
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{
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BigInteger bigInteger;
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ECDsaSigner.Eight = bigInteger;
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}
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// Token: 0x0400625C RID: 25180
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[Token(Token = "0x400625C")]
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private static readonly BigInteger Eight;
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// Token: 0x0400625D RID: 25181
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
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[Token(Token = "0x400625D")]
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protected readonly IDsaKCalculator kCalculator;
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// Token: 0x0400625E RID: 25182
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
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[Token(Token = "0x400625E")]
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protected ECKeyParameters key;
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// Token: 0x0400625F RID: 25183
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[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
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[Token(Token = "0x400625F")]
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protected SecureRandom random;
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}
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}
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