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niko
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using System;
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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.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: 0x02001BA2 RID: 7074
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[Token(Token = "0x2001BA2")]
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public class DsaSigner : IDsaExt, IDsa
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{
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// Token: 0x0600B0C6 RID: 45254 RVA: 0x0026665C File Offset: 0x0026485C
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[Token(Token = "0x600B0C6")]
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[Address(RVA = "0x1892F40", Offset = "0x1891D40", VA = "0x181892F40")]
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public DsaSigner()
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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: 0x0600B0C7 RID: 45255 RVA: 0x0026667C File Offset: 0x0026487C
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[Token(Token = "0x600B0C7")]
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[Address(RVA = "0x3FFB80", Offset = "0x3FE980", VA = "0x1803FFB80")]
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public DsaSigner(IDsaKCalculator kCalculator)
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{
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this.kCalculator = kCalculator;
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}
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// Token: 0x17001BD6 RID: 7126
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// (get) Token: 0x0600B0C8 RID: 45256 RVA: 0x00266698 File Offset: 0x00264898
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[Token(Token = "0x17001BD6")]
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public virtual string AlgorithmName
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{
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[Token(Token = "0x600B0C8")]
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[Address(RVA = "0x1892FA0", Offset = "0x1891DA0", VA = "0x181892FA0", Slot = "9")]
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get
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{
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return "DSA";
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}
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}
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// Token: 0x0600B0C9 RID: 45257 RVA: 0x002666AC File Offset: 0x002648AC
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[Token(Token = "0x600B0C9")]
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[Address(RVA = "0x1892A30", Offset = "0x1891830", VA = "0x181892A30", 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 (0600B0C9)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.DsaSigner::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_5E:
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stloc:InvalidKeyException(var_9_68, newobj:InvalidKeyException(InvalidKeyException::.ctor, ldstr:string("DSA 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: 0x17001BD7 RID: 7127
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// (get) Token: 0x0600B0CA RID: 45258 RVA: 0x00266724 File Offset: 0x00264924
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[Token(Token = "0x17001BD7")]
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public virtual BigInteger Order
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{
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[Token(Token = "0x600B0CA")]
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[Address(RVA = "0x1892FD0", Offset = "0x1891DD0", VA = "0x181892FD0", Slot = "11")]
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get
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{
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return this.key.parameters.q;
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}
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}
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// Token: 0x0600B0CB RID: 45259 RVA: 0x00266748 File Offset: 0x00264948
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[Token(Token = "0x600B0CB")]
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[Address(RVA = "0x18926B0", Offset = "0x18914B0", VA = "0x1818926B0", Slot = "12")]
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public virtual BigInteger[] GenerateSignature(byte[] message)
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{
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DsaParameters parameters;
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BigInteger q;
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int num;
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for (;;)
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{
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parameters = this.key.parameters;
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q = parameters.q;
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DsaKeyParameters dsaKeyParameters = this.key;
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if (dsaKeyParameters != 0)
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{
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num = 0;
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if (dsaKeyParameters != 0)
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{
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break;
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}
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}
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}
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IDsaKCalculator dsaKCalculator = this.kCalculator;
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IDsaKCalculator dsaKCalculator2 = this.kCalculator;
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if (num == 0)
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{
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SecureRandom secureRandom = this.random;
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}
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IDsaKCalculator dsaKCalculator3 = this.kCalculator;
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BigInteger g = parameters.g;
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BigInteger bigInteger2;
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BigInteger bigInteger = bigInteger2.Mod(q);
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BigInteger bigInteger4;
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BigInteger bigInteger5;
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BigInteger bigInteger3 = bigInteger4.Multiply(bigInteger5).Mod(q);
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BigInteger[] array = new BigInteger[2];
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if (bigInteger != 0)
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{
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}
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array[0] = bigInteger;
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if (bigInteger3 != 0)
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{
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}
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array[1] = bigInteger3;
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return array;
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}
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// Token: 0x0600B0CC RID: 45260 RVA: 0x002667F4 File Offset: 0x002649F4
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[Token(Token = "0x600B0CC")]
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[Address(RVA = "0x1892D10", Offset = "0x1891B10", VA = "0x181892D10", Slot = "13")]
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public virtual bool VerifySignature(byte[] message, BigInteger r, BigInteger s)
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{
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DsaParameters parameters = this.key.parameters;
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BigInteger q = parameters.q;
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if (r.sign > 0 && q.CompareTo(r) > 0 && s.sign > 0 && q.CompareTo(s) > 0)
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{
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BigInteger bigInteger = s.ModInverse(q);
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BigInteger bigInteger3;
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BigInteger bigInteger2 = bigInteger3.Mod(q);
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BigInteger bigInteger4 = r.Multiply(bigInteger).Mod(q);
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BigInteger g = parameters.g;
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BigInteger p = parameters.p;
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BigInteger bigInteger5 = g.ModPow(bigInteger2, p);
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int nBitLength = bigInteger5.nBitLength;
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BigInteger bigInteger7;
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BigInteger bigInteger6 = bigInteger5.Multiply(bigInteger7).Mod(p).Mod(q);
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}
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throw new NullReferenceException();
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}
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// Token: 0x0600B0CD RID: 45261 RVA: 0x002668A4 File Offset: 0x00264AA4
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[Token(Token = "0x600B0CD")]
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[Address(RVA = "0x18925E0", Offset = "0x18913E0", VA = "0x1818925E0", Slot = "14")]
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protected virtual BigInteger CalculateE(BigInteger n, byte[] message)
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{
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int num = 0;
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int num2 = n.BitLength;
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int length = message.Length;
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num += num2;
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num2 = Math.Min(length, num);
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int num3;
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BigInteger bigInteger = new BigInteger(1, message, num3, num2);
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num3 = 0;
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return bigInteger;
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}
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// Token: 0x0600B0CE RID: 45262 RVA: 0x002668E4 File Offset: 0x00264AE4
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[Token(Token = "0x600B0CE")]
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[Address(RVA = "0x18929C0", Offset = "0x18917C0", VA = "0x1818929C0", Slot = "15")]
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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: 0x0400709C RID: 28828
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[FieldOffset(Offset = "0x10")]
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[Token(Token = "0x400709C")]
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protected readonly IDsaKCalculator kCalculator;
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// Token: 0x0400709D RID: 28829
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[FieldOffset(Offset = "0x18")]
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[Token(Token = "0x400709D")]
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protected DsaKeyParameters key;
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// Token: 0x0400709E RID: 28830
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[FieldOffset(Offset = "0x20")]
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[Token(Token = "0x400709E")]
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protected SecureRandom random;
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}
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}
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