using System;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers
{
	// Token: 0x02001C82 RID: 7298
	[Token(Token = "0x2001C82")]
	public class DsaSigner : IDsaExt, IDsa
	{
		// Token: 0x0600B494 RID: 46228 RVA: 0x0026F820 File Offset: 0x0026DA20
		[Token(Token = "0x600B494")]
		[Address(RVA = "0x2356960", Offset = "0x2355960", VA = "0x182356960")]
		public DsaSigner()
		{
			RandomDsaKCalculator randomDsaKCalculator = new RandomDsaKCalculator();
			this.kCalculator = randomDsaKCalculator;
		}

		// Token: 0x0600B495 RID: 46229 RVA: 0x0026F840 File Offset: 0x0026DA40
		[Token(Token = "0x600B495")]
		[Address(RVA = "0x493D90", Offset = "0x492D90", VA = "0x180493D90")]
		public DsaSigner(IDsaKCalculator kCalculator)
		{
			this.kCalculator = kCalculator;
		}

		// Token: 0x17001C73 RID: 7283
		// (get) Token: 0x0600B496 RID: 46230 RVA: 0x0026F85C File Offset: 0x0026DA5C
		[Token(Token = "0x17001C73")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x600B496")]
			[Address(RVA = "0x23569C0", Offset = "0x23559C0", VA = "0x1823569C0", Slot = "9")]
			get
			{
				return "DSA";
			}
		}

		// Token: 0x0600B497 RID: 46231 RVA: 0x0026F870 File Offset: 0x0026DA70
		[Token(Token = "0x600B497")]
		[Address(RVA = "0x2356450", Offset = "0x2355450", VA = "0x182356450", Slot = "10")]
		public virtual void Init(bool forSigning, ICipherParameters parameters)
		{
			/*
An exception occurred when decompiling this method (0600B497)

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

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_5E:
	stloc:InvalidKeyException(var_9_68, newobj:InvalidKeyException(InvalidKeyException::.ctor, ldstr:string("DSA 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: 0x17001C74 RID: 7284
		// (get) Token: 0x0600B498 RID: 46232 RVA: 0x0026F8E8 File Offset: 0x0026DAE8
		[Token(Token = "0x17001C74")]
		public virtual BigInteger Order
		{
			[Token(Token = "0x600B498")]
			[Address(RVA = "0x23569F0", Offset = "0x23559F0", VA = "0x1823569F0", Slot = "11")]
			get
			{
				return this.key.parameters.q;
			}
		}

		// Token: 0x0600B499 RID: 46233 RVA: 0x0026F90C File Offset: 0x0026DB0C
		[Token(Token = "0x600B499")]
		[Address(RVA = "0x23560D0", Offset = "0x23550D0", VA = "0x1823560D0", Slot = "12")]
		public virtual BigInteger[] GenerateSignature(byte[] message)
		{
			DsaParameters parameters;
			BigInteger q;
			int num;
			for (;;)
			{
				parameters = this.key.parameters;
				q = parameters.q;
				DsaKeyParameters dsaKeyParameters = this.key;
				if (dsaKeyParameters != 0)
				{
					num = 0;
					if (dsaKeyParameters != 0)
					{
						break;
					}
				}
			}
			IDsaKCalculator dsaKCalculator = this.kCalculator;
			IDsaKCalculator dsaKCalculator2 = this.kCalculator;
			if (num == 0)
			{
				SecureRandom secureRandom = this.random;
			}
			IDsaKCalculator dsaKCalculator3 = this.kCalculator;
			BigInteger g = parameters.g;
			BigInteger bigInteger2;
			BigInteger bigInteger = bigInteger2.Mod(q);
			BigInteger bigInteger4;
			BigInteger bigInteger5;
			BigInteger bigInteger3 = bigInteger4.Multiply(bigInteger5).Mod(q);
			BigInteger[] array = new BigInteger[2];
			if (bigInteger != 0)
			{
			}
			array[0] = bigInteger;
			if (bigInteger3 != 0)
			{
			}
			array[1] = bigInteger3;
			return array;
		}

		// Token: 0x0600B49A RID: 46234 RVA: 0x0026F9B8 File Offset: 0x0026DBB8
		[Token(Token = "0x600B49A")]
		[Address(RVA = "0x2356730", Offset = "0x2355730", VA = "0x182356730", Slot = "13")]
		public virtual bool VerifySignature(byte[] message, BigInteger r, BigInteger s)
		{
			DsaParameters parameters = this.key.parameters;
			BigInteger q = parameters.q;
			if (r.sign > 0 && q.CompareTo(r) > 0 && s.sign > 0 && q.CompareTo(s) > 0)
			{
				BigInteger bigInteger = s.ModInverse(q);
				BigInteger bigInteger3;
				BigInteger bigInteger2 = bigInteger3.Mod(q);
				BigInteger bigInteger4 = r.Multiply(bigInteger).Mod(q);
				BigInteger g = parameters.g;
				BigInteger p = parameters.p;
				BigInteger bigInteger5 = g.ModPow(bigInteger2, p);
				int nBitLength = bigInteger5.nBitLength;
				BigInteger bigInteger7;
				BigInteger bigInteger6 = bigInteger5.Multiply(bigInteger7).Mod(p).Mod(q);
			}
			throw new NullReferenceException();
		}

		// Token: 0x0600B49B RID: 46235 RVA: 0x0026FA68 File Offset: 0x0026DC68
		[Token(Token = "0x600B49B")]
		[Address(RVA = "0x2356000", Offset = "0x2355000", VA = "0x182356000", Slot = "14")]
		protected virtual BigInteger CalculateE(BigInteger n, byte[] message)
		{
			int num = 0;
			int num2 = n.BitLength;
			int length = message.Length;
			num += num2;
			num2 = Math.Min(length, num);
			int num3;
			BigInteger bigInteger = new BigInteger(1, message, num3, num2);
			num3 = 0;
			return bigInteger;
		}

		// Token: 0x0600B49C RID: 46236 RVA: 0x0026FAA8 File Offset: 0x0026DCA8
		[Token(Token = "0x600B49C")]
		[Address(RVA = "0x23563E0", Offset = "0x23553E0", VA = "0x1823563E0", Slot = "15")]
		protected virtual SecureRandom InitSecureRandom(bool needed, SecureRandom provided)
		{
			do
			{
				if (!needed)
				{
				}
			}
			while (provided != 0);
			return new SecureRandom();
		}

		// Token: 0x04007255 RID: 29269
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4007255")]
		protected readonly IDsaKCalculator kCalculator;

		// Token: 0x04007256 RID: 29270
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x4007256")]
		protected DsaKeyParameters key;

		// Token: 0x04007257 RID: 29271
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x4007257")]
		protected SecureRandom random;
	}
}