using System;
using System.Runtime.InteropServices;
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: 0x020015C6 RID: 5574
	[Token(Token = "0x20015C6")]
	[StructLayout(3)]
	public class ECDsaSigner : IDsaExt, IDsa
	{
		// Token: 0x060094F5 RID: 38133 RVA: 0x0020F270 File Offset: 0x0020D470
		[Token(Token = "0x60094F5")]
		[Address(RVA = "0x1E3C5E0", Offset = "0x1E3AFE0", VA = "0x181E3C5E0")]
		public ECDsaSigner()
		{
			RandomDsaKCalculator randomDsaKCalculator = new RandomDsaKCalculator();
			this.kCalculator = randomDsaKCalculator;
		}

		// Token: 0x060094F6 RID: 38134 RVA: 0x0020F290 File Offset: 0x0020D490
		[Token(Token = "0x60094F6")]
		[Address(RVA = "0x3C3A30", Offset = "0x3C2430", VA = "0x1803C3A30")]
		public ECDsaSigner(IDsaKCalculator kCalculator)
		{
			this.kCalculator = kCalculator;
		}

		// Token: 0x170017D7 RID: 6103
		// (get) Token: 0x060094F7 RID: 38135 RVA: 0x0020F2AC File Offset: 0x0020D4AC
		[Token(Token = "0x170017D7")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x60094F7")]
			[Address(RVA = "0x1E3C640", Offset = "0x1E3B040", VA = "0x181E3C640", Slot = "9")]
			get
			{
				return "ECDSA";
			}
		}

		// Token: 0x060094F8 RID: 38136 RVA: 0x0020F2C0 File Offset: 0x0020D4C0
		[Token(Token = "0x60094F8")]
		[Address(RVA = "0x1E3BEB0", Offset = "0x1E3A8B0", VA = "0x181E3BEB0", Slot = "10")]
		public virtual void Init(bool forSigning, ICipherParameters parameters)
		{
			/*
An exception occurred when decompiling this method (060094F8)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.ECDsaSigner::Init(System.Boolean,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_75:
	stloc:InvalidKeyException(var_11_7F, 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: 0x170017D8 RID: 6104
		// (get) Token: 0x060094F9 RID: 38137 RVA: 0x0020F350 File Offset: 0x0020D550
		[Token(Token = "0x170017D8")]
		public virtual BigInteger Order
		{
			[Token(Token = "0x60094F9")]
			[Address(RVA = "0x1E3C670", Offset = "0x1E3B070", VA = "0x181E3C670", Slot = "11")]
			get
			{
				return this.key.parameters.n;
			}
		}

		// Token: 0x060094FA RID: 38138 RVA: 0x0020F374 File Offset: 0x0020D574
		[Token(Token = "0x60094FA")]
		[Address(RVA = "0x1E3B8F0", Offset = "0x1E3A2F0", VA = "0x181E3B8F0", Slot = "12")]
		public virtual BigInteger[] GenerateSignature(byte[] message)
		{
			BigInteger n;
			ECKeyParameters eckeyParameters;
			do
			{
				n = this.key.parameters.n;
				eckeyParameters = this.key;
			}
			while (eckeyParameters == 0 || eckeyParameters == 0);
			IDsaKCalculator dsaKCalculator = this.kCalculator;
			IDsaKCalculator dsaKCalculator2 = this.kCalculator;
			if (eckeyParameters == 0)
			{
				SecureRandom secureRandom = this.random;
			}
			int num = 0;
			IDsaKCalculator dsaKCalculator3 = this.kCalculator;
			if (num < dsaKCalculator2)
			{
				num += num;
				num++;
			}
			uint num2;
			if (num < (int)num2)
			{
				num += num;
				num++;
			}
			char c;
			string text = c.ToString();
			BigInteger bigInteger;
			while (bigInteger.sign == 0)
			{
			}
			BigInteger bigInteger3;
			BigInteger bigInteger4;
			BigInteger bigInteger2 = bigInteger3.Multiply(bigInteger4).Mod(n);
			while (bigInteger2.sign == 0)
			{
			}
			return new BigInteger[] { bigInteger, bigInteger2 };
		}

		// Token: 0x060094FB RID: 38139 RVA: 0x0020F448 File Offset: 0x0020D648
		[Token(Token = "0x60094FB")]
		[Address(RVA = "0x1E3C190", Offset = "0x1E3AB90", VA = "0x181E3C190", Slot = "13")]
		public virtual bool VerifySignature(byte[] message, BigInteger r, BigInteger s)
		{
			BigInteger n = this.key.parameters.n;
			int num = r.CompareTo(n);
			int num2 = s.CompareTo(n);
			BigInteger bigInteger = s.ModInverse(n);
			BigInteger bigInteger3;
			BigInteger bigInteger2 = bigInteger3.Mod(n);
			BigInteger bigInteger4 = r.Multiply(bigInteger);
			int num3 = 0;
			BigInteger bigInteger5 = bigInteger4.Mod(n);
			ECPoint ecpoint = ECAlgorithms.SumOfTwoMultiplies(this.key.parameters.g, bigInteger2, num3, bigInteger5);
			if (!ecpoint.IsInfinity)
			{
				bool flag = ecpoint.SatisfiesOrder();
				if (flag && flag)
				{
					BigInteger eight = ECDsaSigner.Eight;
					ECMultiplier ecmultiplier = this.CreateBasePointMultiplier();
					if (ecmultiplier != 0 && ecmultiplier == 0)
					{
						ECFieldElement affineYCoord = ecpoint.AffineYCoord;
						if (flag.GetTypeCode() != TypeCode.Empty)
						{
							int num4 = flag.CompareTo(r);
							bool flag2;
							if (!flag2)
							{
								BigInteger bigInteger6 = r.Add(n);
							}
							return true;
						}
						goto IL_DD;
					}
				}
				bool flag3 = ecpoint.IsNormalized();
				sbyte b;
				string text = b.ToString();
			}
			IL_DD:
			throw new NullReferenceException();
		}

		// Token: 0x060094FC RID: 38140 RVA: 0x0020F538 File Offset: 0x0020D738
		[Token(Token = "0x60094FC")]
		[Address(RVA = "0x1E3B7E0", Offset = "0x1E3A1E0", VA = "0x181E3B7E0", Slot = "14")]
		protected virtual BigInteger CalculateE(BigInteger n, byte[] message)
		{
			int num = message.Length;
			BigInteger bigInteger = new BigInteger(1, message);
			if (n.BitLength < num)
			{
				int bitLength = n.BitLength;
				num -= bitLength;
				BigInteger bigInteger2 = bigInteger.ShiftRight(num);
			}
			return bigInteger;
		}

		// Token: 0x060094FD RID: 38141 RVA: 0x0020F578 File Offset: 0x0020D778
		[Token(Token = "0x60094FD")]
		[Address(RVA = "0x1E3B8A0", Offset = "0x1E3A2A0", VA = "0x181E3B8A0", Slot = "15")]
		protected virtual ECMultiplier CreateBasePointMultiplier()
		{
			/*
An exception occurred when decompiling this method (060094FD)

ICSharpCode.Decompiler.DecompilerException: Error decompiling BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier.ECMultiplier BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.ECDsaSigner::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: 0x060094FE RID: 38142 RVA: 0x0020F58C File Offset: 0x0020D78C
		[Token(Token = "0x60094FE")]
		[Address(RVA = "0x1E3BD90", Offset = "0x1E3A790", VA = "0x181E3BD90", Slot = "16")]
		protected virtual ECFieldElement GetDenominator(int coordinateSystem, ECPoint p)
		{
			if (coordinateSystem <= 6)
			{
				BigInteger bigInteger = p.YCoord.ToBigInteger();
				bool flag = p.SatisfiesCurveEquation();
			}
			throw new NullReferenceException();
		}

		// Token: 0x060094FF RID: 38143 RVA: 0x0020F5B8 File Offset: 0x0020D7B8
		[Token(Token = "0x60094FF")]
		[Address(RVA = "0x1E3BE40", Offset = "0x1E3A840", VA = "0x181E3BE40", Slot = "17")]
		protected virtual SecureRandom InitSecureRandom(bool needed, SecureRandom provided)
		{
			do
			{
				if (!needed)
				{
				}
			}
			while (provided != 0);
			return new SecureRandom();
		}

		// Token: 0x06009500 RID: 38144 RVA: 0x0020F5D4 File Offset: 0x0020D7D4
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x6009500")]
		[Address(RVA = "0x1E3C580", Offset = "0x1E3AF80", VA = "0x181E3C580")]
		static ECDsaSigner()
		{
			BigInteger bigInteger;
			ECDsaSigner.Eight = bigInteger;
		}

		// Token: 0x0400625C RID: 25180
		[Token(Token = "0x400625C")]
		private static readonly BigInteger Eight;

		// Token: 0x0400625D RID: 25181
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400625D")]
		protected readonly IDsaKCalculator kCalculator;

		// Token: 0x0400625E RID: 25182
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x400625E")]
		protected ECKeyParameters key;

		// Token: 0x0400625F RID: 25183
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x400625F")]
		protected SecureRandom random;
	}
}