using System;
using System.Runtime.InteropServices;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Macs;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers
{
	// Token: 0x020015D4 RID: 5588
	[Token(Token = "0x20015D4")]
	[StructLayout(3)]
	public class HMacDsaKCalculator : IDsaKCalculator
	{
		// Token: 0x06009558 RID: 38232 RVA: 0x00210CF8 File Offset: 0x0020EEF8
		[Token(Token = "0x6009558")]
		[Address(RVA = "0x1E416A0", Offset = "0x1E400A0", VA = "0x181E416A0")]
		public HMacDsaKCalculator(IDigest digest)
		{
			HMac hmac = new HMac(digest);
			this.hMac = hmac;
			byte[] array = new byte[hmac];
			HMac hmac2 = this.hMac;
			this.V = array;
			byte[] array2 = new byte[0];
			this.K = array2;
		}

		// Token: 0x170017E6 RID: 6118
		// (get) Token: 0x06009559 RID: 38233 RVA: 0x00210D44 File Offset: 0x0020EF44
		[Token(Token = "0x170017E6")]
		public virtual bool IsDeterministic
		{
			[Token(Token = "0x6009559")]
			[Address(RVA = "0x4405A0", Offset = "0x43EFA0", VA = "0x1804405A0", Slot = "8")]
			get
			{
				return true;
			}
		}

		// Token: 0x0600955A RID: 38234 RVA: 0x00210D54 File Offset: 0x0020EF54
		[Token(Token = "0x600955A")]
		[Address(RVA = "0x1E413B0", Offset = "0x1E3FDB0", VA = "0x181E413B0", Slot = "9")]
		public virtual void Init(BigInteger n, SecureRandom random)
		{
			/*
An exception occurred when decompiling this method (0600955A)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Signers.HMacDsaKCalculator::Init(BestHTTP.SecureProtocol.Org.BouncyCastle.Math.BigInteger,BestHTTP.SecureProtocol.Org.BouncyCastle.Security.SecureRandom)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	Block_0:
	stloc:InvalidOperationException(var_0_0A, newobj:InvalidOperationException(InvalidOperationException::.ctor, ldstr:string("Operation not supported")))
}

   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: 0x0600955B RID: 38235 RVA: 0x00210D6C File Offset: 0x0020EF6C
		[Token(Token = "0x600955B")]
		[Address(RVA = "0x1E40F00", Offset = "0x1E3F900", VA = "0x181E40F00", Slot = "6")]
		public void Init(BigInteger n, BigInteger d, byte[] message)
		{
			byte[] v = this.V;
			this.n = n;
			ulong num;
			Arrays.Fill(v, (byte)num);
			byte[] k = this.K;
			int num2 = 0;
			Arrays.Fill(k, (byte)num2);
			int unsignedByteLength = BigIntegers.GetUnsignedByteLength(n);
			byte[] array = new byte[unsignedByteLength];
			byte[] array2 = BigIntegers.AsUnsignedByteArray(d);
			int length = array2.Length;
			int num3 = array.Length;
			int num4 = 0;
			num3 -= length;
			Array.Copy(array2, num4, array, num3, length);
			byte[] array3 = new byte[unsignedByteLength];
			BigInteger bigInteger = this.BitsToInt(message);
			int num5 = bigInteger.CompareTo(n);
			byte[] array4 = BigIntegers.AsUnsignedByteArray(bigInteger.Subtract(n));
			int length2 = array4.Length;
			int num6 = array3.Length;
			int num7 = 0;
			num6 -= length2;
			Array.Copy(array4, num7, array3, num6, length2);
			HMac hmac = this.hMac;
			KeyParameter keyParameter = new KeyParameter(this.K);
			IDigest underlyingDigest = hmac.GetUnderlyingDigest();
			byte[] v2 = this.V;
			this.hMac.Update(v2);
			int macSize = this.hMac.GetMacSize();
			this.hMac.Update(array);
			this.hMac.Update(array3);
			HMac hmac2 = this.hMac;
			HMac hmac3 = this.hMac;
			KeyParameter keyParameter2 = new KeyParameter(this.K);
			IDigest underlyingDigest2 = hmac3.GetUnderlyingDigest();
			byte[] v3 = this.V;
			this.hMac.Update(v3);
			HMac hmac4 = this.hMac;
			byte[] v4 = this.V;
			this.hMac.Update(v4);
			int macSize2 = this.hMac.GetMacSize();
			this.hMac.Update(array);
			this.hMac.Update(array3);
			HMac hmac5 = this.hMac;
			HMac hmac6 = this.hMac;
			KeyParameter keyParameter3 = new KeyParameter(this.K);
			IDigest underlyingDigest3 = hmac6.GetUnderlyingDigest();
			byte[] v5 = this.V;
			this.hMac.Update(v5);
			string algorithmName = ((IMac)this.hMac).AlgorithmName;
		}

		// Token: 0x0600955C RID: 38236 RVA: 0x00210F60 File Offset: 0x0020F160
		[Token(Token = "0x600955C")]
		[Address(RVA = "0x1E41410", Offset = "0x1E3FE10", VA = "0x181E41410", Slot = "10")]
		public virtual BigInteger NextK()
		{
			byte[] array = new byte[BigIntegers.GetUnsignedByteLength(this.n)];
			int num = 0;
			if (num < array.Length)
			{
				byte[] v = this.V;
				this.hMac.Update(v);
				HMac hmac = this.hMac;
				byte[] v2 = this.V;
				int num2 = array.Length;
				int length = v2.Length;
				num2 -= num;
				int num3 = Math.Min(num2, length);
				byte[] v3 = this.V;
				int num4 = 0;
				Array.Copy(v3, num4, array, num, num3);
				num += num3;
			}
			BigInteger bigInteger = this.BitsToInt(array);
			if (bigInteger.sign > num)
			{
				BigInteger bigInteger2 = this.n;
				int num5 = bigInteger.CompareTo(bigInteger2);
			}
			byte[] v4 = this.V;
			this.hMac.Update(v4);
			int macSize = this.hMac.GetMacSize();
			HMac hmac2 = this.hMac;
			HMac hmac3 = this.hMac;
			KeyParameter keyParameter = new KeyParameter(this.K);
			IDigest underlyingDigest = hmac3.GetUnderlyingDigest();
			byte[] v5 = this.V;
			this.hMac.Update(v5);
			HMac hmac4 = this.hMac;
			throw new NullReferenceException();
		}

		// Token: 0x0600955D RID: 38237 RVA: 0x0021107C File Offset: 0x0020F27C
		[Token(Token = "0x600955D")]
		[Address(RVA = "0x1E40E40", Offset = "0x1E3F840", VA = "0x181E40E40")]
		private BigInteger BitsToInt(byte[] t)
		{
			BigInteger bigInteger = new BigInteger(1, t);
			int bitLength = this.n.BitLength;
			if (t.Length > bitLength)
			{
				int bitLength2 = this.n.BitLength;
				int num = t.Length;
				num -= bitLength2;
				BigInteger bigInteger2 = bigInteger.ShiftRight(num);
			}
			return bigInteger;
		}

		// Token: 0x04006285 RID: 25221
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4006285")]
		private readonly HMac hMac;

		// Token: 0x04006286 RID: 25222
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x4006286")]
		private readonly byte[] K;

		// Token: 0x04006287 RID: 25223
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x4006287")]
		private readonly byte[] V;

		// Token: 0x04006288 RID: 25224
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x4006288")]
		private BigInteger n;
	}
}