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: 0x02001BA3 RID: 7075
	[Token(Token = "0x2001BA3")]
	public class ECDsaSigner : IDsaExt, IDsa
	{
		// Token: 0x0600B0CF RID: 45263 RVA: 0x00266900 File Offset: 0x00264B00
		[Token(Token = "0x600B0CF")]
		[Address(RVA = "0x1893E00", Offset = "0x1892C00", VA = "0x181893E00")]
		public ECDsaSigner()
		{
			RandomDsaKCalculator randomDsaKCalculator = new RandomDsaKCalculator();
			this.kCalculator = randomDsaKCalculator;
		}

		// Token: 0x0600B0D0 RID: 45264 RVA: 0x00266920 File Offset: 0x00264B20
		[Token(Token = "0x600B0D0")]
		[Address(RVA = "0x3FFB80", Offset = "0x3FE980", VA = "0x1803FFB80")]
		public ECDsaSigner(IDsaKCalculator kCalculator)
		{
			this.kCalculator = kCalculator;
		}

		// Token: 0x17001BD8 RID: 7128
		// (get) Token: 0x0600B0D1 RID: 45265 RVA: 0x0026693C File Offset: 0x00264B3C
		[Token(Token = "0x17001BD8")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x600B0D1")]
			[Address(RVA = "0x1893E60", Offset = "0x1892C60", VA = "0x181893E60", Slot = "9")]
			get
			{
				return "ECDSA";
			}
		}

		// Token: 0x0600B0D2 RID: 45266 RVA: 0x00266950 File Offset: 0x00264B50
		[Token(Token = "0x600B0D2")]
		[Address(RVA = "0x18936D0", Offset = "0x18924D0", VA = "0x1818936D0", Slot = "10")]
		public virtual void Init(bool forSigning, ICipherParameters parameters)
		{
			/*
An exception occurred when decompiling this method (0600B0D2)

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: 0x17001BD9 RID: 7129
		// (get) Token: 0x0600B0D3 RID: 45267 RVA: 0x002669E0 File Offset: 0x00264BE0
		[Token(Token = "0x17001BD9")]
		public virtual BigInteger Order
		{
			[Token(Token = "0x600B0D3")]
			[Address(RVA = "0x1893E90", Offset = "0x1892C90", VA = "0x181893E90", Slot = "11")]
			get
			{
				return this.key.parameters.n;
			}
		}

		// Token: 0x0600B0D4 RID: 45268 RVA: 0x00266A04 File Offset: 0x00264C04
		[Token(Token = "0x600B0D4")]
		[Address(RVA = "0x1893110", Offset = "0x1891F10", VA = "0x181893110", 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: 0x0600B0D5 RID: 45269 RVA: 0x00266AD8 File Offset: 0x00264CD8
		[Token(Token = "0x600B0D5")]
		[Address(RVA = "0x18939B0", Offset = "0x18927B0", VA = "0x1818939B0", 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: 0x0600B0D6 RID: 45270 RVA: 0x00266BC8 File Offset: 0x00264DC8
		[Token(Token = "0x600B0D6")]
		[Address(RVA = "0x1893000", Offset = "0x1891E00", VA = "0x181893000", 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: 0x0600B0D7 RID: 45271 RVA: 0x00266C08 File Offset: 0x00264E08
		[Token(Token = "0x600B0D7")]
		[Address(RVA = "0x18930C0", Offset = "0x1891EC0", VA = "0x1818930C0", Slot = "15")]
		protected virtual ECMultiplier CreateBasePointMultiplier()
		{
			/*
An exception occurred when decompiling this method (0600B0D7)

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: 0x0600B0D8 RID: 45272 RVA: 0x00266C1C File Offset: 0x00264E1C
		[Token(Token = "0x600B0D8")]
		[Address(RVA = "0x18935B0", Offset = "0x18923B0", VA = "0x1818935B0", 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: 0x0600B0D9 RID: 45273 RVA: 0x00266C48 File Offset: 0x00264E48
		[Token(Token = "0x600B0D9")]
		[Address(RVA = "0x1893660", Offset = "0x1892460", VA = "0x181893660", Slot = "17")]
		protected virtual SecureRandom InitSecureRandom(bool needed, SecureRandom provided)
		{
			do
			{
				if (!needed)
				{
				}
			}
			while (provided != 0);
			return new SecureRandom();
		}

		// Token: 0x0600B0DA RID: 45274 RVA: 0x00266C64 File Offset: 0x00264E64
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x600B0DA")]
		[Address(RVA = "0x1893DA0", Offset = "0x1892BA0", VA = "0x181893DA0")]
		static ECDsaSigner()
		{
			BigInteger bigInteger;
			ECDsaSigner.Eight = bigInteger;
		}

		// Token: 0x0400709F RID: 28831
		[Token(Token = "0x400709F")]
		private static readonly BigInteger Eight;

		// Token: 0x040070A0 RID: 28832
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x40070A0")]
		protected readonly IDsaKCalculator kCalculator;

		// Token: 0x040070A1 RID: 28833
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x40070A1")]
		protected ECKeyParameters key;

		// Token: 0x040070A2 RID: 28834
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x40070A2")]
		protected SecureRandom random;
	}
}