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: 0x02001C83 RID: 7299
	[Token(Token = "0x2001C83")]
	public class ECDsaSigner : IDsaExt, IDsa
	{
		// Token: 0x0600B49D RID: 46237 RVA: 0x0026FAC4 File Offset: 0x0026DCC4
		[Token(Token = "0x600B49D")]
		[Address(RVA = "0x2357820", Offset = "0x2356820", VA = "0x182357820")]
		public ECDsaSigner()
		{
			RandomDsaKCalculator randomDsaKCalculator = new RandomDsaKCalculator();
			this.kCalculator = randomDsaKCalculator;
		}

		// Token: 0x0600B49E RID: 46238 RVA: 0x0026FAE4 File Offset: 0x0026DCE4
		[Token(Token = "0x600B49E")]
		[Address(RVA = "0x493D90", Offset = "0x492D90", VA = "0x180493D90")]
		public ECDsaSigner(IDsaKCalculator kCalculator)
		{
			this.kCalculator = kCalculator;
		}

		// Token: 0x17001C75 RID: 7285
		// (get) Token: 0x0600B49F RID: 46239 RVA: 0x0026FB00 File Offset: 0x0026DD00
		[Token(Token = "0x17001C75")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x600B49F")]
			[Address(RVA = "0x2357880", Offset = "0x2356880", VA = "0x182357880", Slot = "9")]
			get
			{
				return "ECDSA";
			}
		}

		// Token: 0x0600B4A0 RID: 46240 RVA: 0x0026FB14 File Offset: 0x0026DD14
		[Token(Token = "0x600B4A0")]
		[Address(RVA = "0x23570F0", Offset = "0x23560F0", VA = "0x1823570F0", Slot = "10")]
		public virtual void Init(bool forSigning, ICipherParameters parameters)
		{
			/*
An exception occurred when decompiling this method (0600B4A0)

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: 0x17001C76 RID: 7286
		// (get) Token: 0x0600B4A1 RID: 46241 RVA: 0x0026FBA4 File Offset: 0x0026DDA4
		[Token(Token = "0x17001C76")]
		public virtual BigInteger Order
		{
			[Token(Token = "0x600B4A1")]
			[Address(RVA = "0x23578B0", Offset = "0x23568B0", VA = "0x1823578B0", Slot = "11")]
			get
			{
				return this.key.parameters.n;
			}
		}

		// Token: 0x0600B4A2 RID: 46242 RVA: 0x0026FBC8 File Offset: 0x0026DDC8
		[Token(Token = "0x600B4A2")]
		[Address(RVA = "0x2356B30", Offset = "0x2355B30", VA = "0x182356B30", 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: 0x0600B4A3 RID: 46243 RVA: 0x0026FC9C File Offset: 0x0026DE9C
		[Token(Token = "0x600B4A3")]
		[Address(RVA = "0x23573D0", Offset = "0x23563D0", VA = "0x1823573D0", 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: 0x0600B4A4 RID: 46244 RVA: 0x0026FD8C File Offset: 0x0026DF8C
		[Token(Token = "0x600B4A4")]
		[Address(RVA = "0x2356A20", Offset = "0x2355A20", VA = "0x182356A20", 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: 0x0600B4A5 RID: 46245 RVA: 0x0026FDCC File Offset: 0x0026DFCC
		[Token(Token = "0x600B4A5")]
		[Address(RVA = "0x2356AE0", Offset = "0x2355AE0", VA = "0x182356AE0", Slot = "15")]
		protected virtual ECMultiplier CreateBasePointMultiplier()
		{
			/*
An exception occurred when decompiling this method (0600B4A5)

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: 0x0600B4A6 RID: 46246 RVA: 0x0026FDE0 File Offset: 0x0026DFE0
		[Token(Token = "0x600B4A6")]
		[Address(RVA = "0x2356FD0", Offset = "0x2355FD0", VA = "0x182356FD0", 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: 0x0600B4A7 RID: 46247 RVA: 0x0026FE0C File Offset: 0x0026E00C
		[Token(Token = "0x600B4A7")]
		[Address(RVA = "0x2357080", Offset = "0x2356080", VA = "0x182357080", Slot = "17")]
		protected virtual SecureRandom InitSecureRandom(bool needed, SecureRandom provided)
		{
			do
			{
				if (!needed)
				{
				}
			}
			while (provided != 0);
			return new SecureRandom();
		}

		// Token: 0x0600B4A8 RID: 46248 RVA: 0x0026FE28 File Offset: 0x0026E028
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x600B4A8")]
		[Address(RVA = "0x23577C0", Offset = "0x23567C0", VA = "0x1823577C0")]
		static ECDsaSigner()
		{
			BigInteger bigInteger;
			ECDsaSigner.Eight = bigInteger;
		}

		// Token: 0x04007258 RID: 29272
		[Token(Token = "0x4007258")]
		private static readonly BigInteger Eight;

		// Token: 0x04007259 RID: 29273
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4007259")]
		protected readonly IDsaKCalculator kCalculator;

		// Token: 0x0400725A RID: 29274
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x400725A")]
		protected ECKeyParameters key;

		// Token: 0x0400725B RID: 29275
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x400725B")]
		protected SecureRandom random;
	}
}