context: /*
    KeePass Password Safe - The Open-Source Password Manager
    Copyright (C) 2003-2019 Dominik Reichl <dominik.reichl@t-online.de>
  
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
  
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
  
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
  
  using System;
  using System.Collections.Generic;
  using System.Diagnostics;
  using System.Globalization;
  using System.IO;
  using System.Runtime.InteropServices;
  using System.Security;
  using System.Text;
  
  #if KeePassUAP
  using Org.BouncyCastle.Crypto;
  using Org.BouncyCastle.Crypto.Engines;
  using Org.BouncyCastle.Crypto.Parameters;
  #else
  using System.Security.Cryptography;
  #endif
  
  using KeePassLib.Cryptography.Cipher;
  using KeePassLib.Cryptography.Hash;
  using KeePassLib.Cryptography.KeyDerivation;
  using KeePassLib.Keys;
  using KeePassLib.Native;
  using KeePassLib.Resources;
  using KeePassLib.Security;
  using KeePassLib.Utility;
  
  #if (KeePassUAP && KeePassLibSD)
  #error KeePassUAP and KeePassLibSD are mutually exclusive.
  #endif
  
  namespace KeePassLib.Cryptography
  {
  	/// <summary>
  	/// Class containing self-test methods.
  	/// </summary>
  	public static class SelfTest
  	{
  		/// <summary>
  		/// Perform a self-test.
  		/// </summary>
  		public static void Perform()
  		{
  #if KeePassUAP
  			Debug.Assert(Marshal.SizeOf<int>() == 4);
  			Debug.Assert(Marshal.SizeOf<uint>() == 4);
  			Debug.Assert(Marshal.SizeOf<long>() == 8);
  			Debug.Assert(Marshal.SizeOf<ulong>() == 8);
  			Debug.Assert(Marshal.SizeOf<IntPtr>() == IntPtr.Size);
  #else
  			Debug.Assert(Marshal.SizeOf(typeof(int)) == 4);
  			Debug.Assert(Marshal.SizeOf(typeof(uint)) == 4);
  			Debug.Assert(Marshal.SizeOf(typeof(long)) == 8);
  			Debug.Assert(Marshal.SizeOf(typeof(ulong)) == 8);
  			Debug.Assert(Marshal.SizeOf(typeof(IntPtr)) == IntPtr.Size);
  #endif
  			Debug.Assert((IntPtr.Size == 4) || (IntPtr.Size == 8));
  
  			Debug.Assert((int)PwIcon.World == 1);
  			Debug.Assert((int)PwIcon.Warning == 2);
  			Debug.Assert((int)PwIcon.BlackBerry == 68);
  
  			Random r = CryptoRandom.NewWeakRandom();
  
  			TestFipsComplianceProblems(); // Must be the first test
  
  			TestAes();
  			TestSalsa20(r);
  			TestChaCha20(r);
  			TestSha256(r);
  			TestBlake2b(r);
  			TestArgon2();
  			TestHmac();
  
  			TestKeyTransform(r);
  			TestNativeKeyTransform(r);
  			
  			TestHmacOtp();
  
  			TestProtectedObjects(r);
  			TestMemUtil(r);
  			TestStrUtil();
  			TestUrlUtil();
  
  #if KeePassUAP
  			SelfTestEx.Perform();
  #endif
  		}
  
  		internal static void TestFipsComplianceProblems()
  		{
  #if !KeePassUAP
  			try { using(RijndaelManaged r = new RijndaelManaged()) { } }
  			catch(Exception exAes)
  			{
  				throw new SecurityException("AES/Rijndael: " + exAes.Message);
  			}
  #endif
  
  			try { using(SHA256Managed h = new SHA256Managed()) { } }
  			catch(Exception exSha256)
  			{
  				throw new SecurityException("SHA-256: " + exSha256.Message);
  			}
  		}
  
  		private static void TestAes()
  		{
  			// Test vector (official ECB test vector #356)
  			byte[] pbKey = new byte[32];
  			byte[] pbIV = new byte[16];
  			byte[] pbData = new byte[16];
  			pbData[0] = 0x04;
  			byte[] pbRefCT = new byte[16] {
  				0x75, 0xD1, 0x1B, 0x0E, 0x3A, 0x68, 0xC4, 0x22,
  				0x3D, 0x88, 0xDB, 0xF0, 0x17, 0x97, 0x7D, 0xD7 };
  
  #if KeePassUAP
  			AesEngine aes = new AesEngine();
  			aes.Init(true, new KeyParameter(pbKey));
  			if(aes.GetBlockSize() != pbData.Length)
  				throw new SecurityException("AES (BC)");
  			aes.ProcessBlock(pbData, 0, pbData, 0);
  			aes.Reset();
  #else
  			using(SymmetricAlgorithm a = CryptoUtil.CreateAes())
  			{
  				if(a.BlockSize != 128) // AES block size
  				{
  					Debug.Assert(false);
  					a.BlockSize = 128;
  				}
  				a.KeySize = 256;
  				a.Mode = CipherMode.ECB;
  
  				using(ICryptoTransform t = a.CreateEncryptor(pbKey, pbIV))
  				{
  					t.TransformBlock(pbData, 0, 16, pbData, 0);
  				}
  			}
  #endif
  
  			if(!MemUtil.ArraysEqual(pbData, pbRefCT))
  				throw new SecurityException("AES");
  		}
  
  		private static void TestSalsa20(Random r)
  		{
  #if DEBUG
  			// Test values from official set 6, vector 3
  			byte[] pbKey = new byte[32] {
  				0x0F, 0x62, 0xB5, 0x08, 0x5B, 0xAE, 0x01, 0x54,
  				0xA7, 0xFA, 0x4D, 0xA0, 0xF3, 0x46, 0x99, 0xEC,
  				0x3F, 0x92, 0xE5, 0x38, 0x8B, 0xDE, 0x31, 0x84,
  				0xD7, 0x2A, 0x7D, 0xD0, 0x23, 0x76, 0xC9, 0x1C
  			};
  			byte[] pbIV = new byte[8] { 0x28, 0x8F, 0xF6, 0x5D,
  				0xC4, 0x2B, 0x92, 0xF9 };
  			byte[] pbExpected = new byte[16] {
  				0x5E, 0x5E, 0x71, 0xF9, 0x01, 0x99, 0x34, 0x03,
  				0x04, 0xAB, 0xB2, 0x2A, 0x37, 0xB6, 0x62, 0x5B
  			};
  
  			byte[] pb = new byte[16];
  			Salsa20Cipher c = new Salsa20Cipher(pbKey, pbIV);
  			c.Encrypt(pb, 0, pb.Length);
  			if(!MemUtil.ArraysEqual(pb, pbExpected))
  				throw new SecurityException("Salsa20-1");
  
  			// Extended test
  			byte[] pbExpected2 = new byte[16] {
  				0xAB, 0xF3, 0x9A, 0x21, 0x0E, 0xEE, 0x89, 0x59,
  				0x8B, 0x71, 0x33, 0x37, 0x70, 0x56, 0xC2, 0xFE
  			};
  			byte[] pbExpected3 = new byte[16] {
  				0x1B, 0xA8, 0x9D, 0xBD, 0x3F, 0x98, 0x83, 0x97,
  				0x28, 0xF5, 0x67, 0x91, 0xD5, 0xB7, 0xCE, 0x23
  			};
  
  			int nPos = Salsa20ToPos(c, r, pb.Length, 65536);
  			Array.Clear(pb, 0, pb.Length);
  			c.Encrypt(pb, 0, pb.Length);
  			if(!MemUtil.ArraysEqual(pb, pbExpected2))
  				throw new SecurityException("Salsa20-2");
  
  			nPos = Salsa20ToPos(c, r, nPos + pb.Length, 131008);
  			Array.Clear(pb, 0, pb.Length);
  			c.Encrypt(pb, 0, pb.Length);
  			if(!MemUtil.ArraysEqual(pb, pbExpected3))
  				throw new SecurityException("Salsa20-3");
  
  			Dictionary<string, bool> d = new Dictionary<string, bool>();
  			const int nRounds = 100;
  			for(int i = 0; i < nRounds; ++i)
  			{
  				byte[] z = new byte[32];
  				c = new Salsa20Cipher(z, MemUtil.Int64ToBytes(i));
  				c.Encrypt(z, 0, z.Length);
  				d[MemUtil.ByteArrayToHexString(z)] = true;
  			}
  			if(d.Count != nRounds) throw new SecurityException("Salsa20-4");
  #endif
  		}
  
  #if DEBUG
  		private static int Salsa20ToPos(Salsa20Cipher c, Random r, int nPos,
  			int nTargetPos)
  		{
  			byte[] pb = new byte[512];
  
  			while(nPos < nTargetPos)
  			{
  				int x = r.Next(1, 513);
  				int nGen = Math.Min(nTargetPos - nPos, x);
  				c.Encrypt(pb, 0, nGen);
  				nPos += nGen;
  			}
  
  			return nTargetPos;
  		}
  #endif
  
  		private static void TestChaCha20(Random r)
  		{
  			// ======================================================
  			// Test vector from RFC 7539, section 2.3.2
  
  			byte[] pbKey = new byte[32];
  			for(int i = 0; i < 32; ++i) pbKey[i] = (byte)i;
  
  			byte[] pbIV = new byte[12];
  			pbIV[3] = 0x09;
  			pbIV[7] = 0x4A;
  
  			byte[] pbExpc = new byte[64] {
  				0x10, 0xF1, 0xE7, 0xE4, 0xD1, 0x3B, 0x59, 0x15,
  				0x50, 0x0F, 0xDD, 0x1F, 0xA3, 0x20, 0x71, 0xC4,
  				0xC7, 0xD1, 0xF4, 0xC7, 0x33, 0xC0, 0x68, 0x03,
  				0x04, 0x22, 0xAA, 0x9A, 0xC3, 0xD4, 0x6C, 0x4E,
  				0xD2, 0x82, 0x64, 0x46, 0x07, 0x9F, 0xAA, 0x09,
  				0x14, 0xC2, 0xD7, 0x05, 0xD9, 0x8B, 0x02, 0xA2,
  				0xB5, 0x12, 0x9C, 0xD1, 0xDE, 0x16, 0x4E, 0xB9,
  				0xCB, 0xD0, 0x83, 0xE8, 0xA2, 0x50, 0x3C, 0x4E
  			};
  
  			byte[] pb = new byte[64];
  
  			using(ChaCha20Cipher c = new ChaCha20Cipher(pbKey, pbIV))
  			{
  				c.Seek(64, SeekOrigin.Begin); // Skip first block
  				c.Encrypt(pb, 0, pb.Length);
  
  				if(!MemUtil.ArraysEqual(pb, pbExpc))
  					throw new SecurityException("ChaCha20-1");
  			}
  
  #if DEBUG
  			// ======================================================
  			// Test vector from RFC 7539, section 2.4.2
  
  			pbIV[3] = 0;
  
  			pb = StrUtil.Utf8.GetBytes("Ladies and Gentlemen of the clas" +
  				@"s of '99: If I could offer you only one tip for " +
  				@"the future, sunscreen would be it.");
  
  			pbExpc = new byte[] {
  				0x6E, 0x2E, 0x35, 0x9A, 0x25, 0x68, 0xF9, 0x80,
  				0x41, 0xBA, 0x07, 0x28, 0xDD, 0x0D, 0x69, 0x81,
  				0xE9, 0x7E, 0x7A, 0xEC, 0x1D, 0x43, 0x60, 0xC2,
  				0x0A, 0x27, 0xAF, 0xCC, 0xFD, 0x9F, 0xAE, 0x0B,
  				0xF9, 0x1B, 0x65, 0xC5, 0x52, 0x47, 0x33, 0xAB,
  				0x8F, 0x59, 0x3D, 0xAB, 0xCD, 0x62, 0xB3, 0x57,
  				0x16, 0x39, 0xD6, 0x24, 0xE6, 0x51, 0x52, 0xAB,
  				0x8F, 0x53, 0x0C, 0x35, 0x9F, 0x08, 0x61, 0xD8,
  				0x07, 0xCA, 0x0D, 0xBF, 0x50, 0x0D, 0x6A, 0x61,
  				0x56, 0xA3, 0x8E, 0x08, 0x8A, 0x22, 0xB6, 0x5E,
  				0x52, 0xBC, 0x51, 0x4D, 0x16, 0xCC, 0xF8, 0x06,
  				0x81, 0x8C, 0xE9, 0x1A, 0xB7, 0x79, 0x37, 0x36,
  				0x5A, 0xF9, 0x0B, 0xBF, 0x74, 0xA3, 0x5B, 0xE6,
  				0xB4, 0x0B, 0x8E, 0xED, 0xF2, 0x78, 0x5E, 0x42,
  				0x87, 0x4D
  			};
  
  			byte[] pb64 = new byte[64];
  
  			using(ChaCha20Cipher c = new ChaCha20Cipher(pbKey, pbIV))
  			{
  				c.Encrypt(pb64, 0, pb64.Length); // Skip first block
  				c.Encrypt(pb, 0, pb.Length);
  
  				if(!MemUtil.ArraysEqual(pb, pbExpc))
  					throw new SecurityException("ChaCha20-2");
  			}
  
  			// ======================================================
  			// Test vector from RFC 7539, appendix A.2 #2
  
  			Array.Clear(pbKey, 0, pbKey.Length);
  			pbKey[31] = 1;
  
  			Array.Clear(pbIV, 0, pbIV.Length);
  			pbIV[11] = 2;
  
  			pb = StrUtil.Utf8.GetBytes("Any submission to the IETF inten" +
  				"ded by the Contributor for publication as all or" +
  				" part of an IETF Internet-Draft or RFC and any s" +
  				"tatement made within the context of an IETF acti" +
  				"vity is considered an \"IETF Contribution\". Such " +
  				"statements include oral statements in IETF sessi" +
  				"ons, as well as written and electronic communica" +
  				"tions made at any time or place, which are addressed to");
  
  			pbExpc = MemUtil.HexStringToByteArray(
  				"A3FBF07DF3FA2FDE4F376CA23E82737041605D9F4F4F57BD8CFF2C1D4B7955EC" +
  				"2A97948BD3722915C8F3D337F7D370050E9E96D647B7C39F56E031CA5EB6250D" +
  				"4042E02785ECECFA4B4BB5E8EAD0440E20B6E8DB09D881A7C6132F420E527950" +
  				"42BDFA7773D8A9051447B3291CE1411C680465552AA6C405B7764D5E87BEA85A" +
  				"D00F8449ED8F72D0D662AB052691CA66424BC86D2DF80EA41F43ABF937D3259D" +
  				"C4B2D0DFB48A6C9139DDD7F76966E928E635553BA76C5C879D7B35D49EB2E62B" +
  				"0871CDAC638939E25E8A1E0EF9D5280FA8CA328B351C3C765989CBCF3DAA8B6C" +
  				"CC3AAF9F3979C92B3720FC88DC95ED84A1BE059C6499B9FDA236E7E818B04B0B" +
  				"C39C1E876B193BFE5569753F88128CC08AAA9B63D1A16F80EF2554D7189C411F" +
  				"5869CA52C5B83FA36FF216B9C1D30062BEBCFD2DC5BCE0911934FDA79A86F6E6" +
  				"98CED759C3FF9B6477338F3DA4F9CD8514EA9982CCAFB341B2384DD902F3D1AB" +
  				"7AC61DD29C6F21BA5B862F3730E37CFDC4FD806C22F221");
  
  			using(MemoryStream msEnc = new MemoryStream())
  			{
  				using(ChaCha20Stream c = new ChaCha20Stream(msEnc, true, pbKey, pbIV))
  				{
  					r.NextBytes(pb64);
  					c.Write(pb64, 0, pb64.Length); // Skip first block
  
  					int p = 0;
  					while(p < pb.Length)
  					{
  						int cb = r.Next(1, pb.Length - p + 1);
  						c.Write(pb, p, cb);
  						p += cb;
  					}
  					Debug.Assert(p == pb.Length);
  				}
  
  				byte[] pbEnc0 = msEnc.ToArray();
  				byte[] pbEnc = MemUtil.Mid(pbEnc0, 64, pbEnc0.Length - 64);
  				if(!MemUtil.ArraysEqual(pbEnc, pbExpc))
  					throw new SecurityException("ChaCha20-3");
  
  				using(MemoryStream msCT = new MemoryStream(pbEnc0, false))
  				{
  					using(ChaCha20Stream cDec = new ChaCha20Stream(msCT, false,
  						pbKey, pbIV))
  					{
  						byte[] pbPT = MemUtil.Read(cDec, pbEnc0.Length);
  						if(cDec.ReadByte() >= 0)
  							throw new SecurityException("ChaCha20-4");
  						if(!MemUtil.ArraysEqual(MemUtil.Mid(pbPT, 0, 64), pb64))
  							throw new SecurityException("ChaCha20-5");
  						if(!MemUtil.ArraysEqual(MemUtil.Mid(pbPT, 64, pbEnc.Length), pb))
  							throw new SecurityException("ChaCha20-6");
  					}
  				}
  			}
  
  			// ======================================================
  			// Test vector TC8 from RFC draft by J. Strombergson:
  			// https://tools.ietf.org/html/draft-strombergson-chacha-test-vectors-01
  
  			pbKey = new byte[32] {
  				0xC4, 0x6E, 0xC1, 0xB1, 0x8C, 0xE8, 0xA8, 0x78,
  				0x72, 0x5A, 0x37, 0xE7, 0x80, 0xDF, 0xB7, 0x35,
  				0x1F, 0x68, 0xED, 0x2E, 0x19, 0x4C, 0x79, 0xFB,
  				0xC6, 0xAE, 0xBE, 0xE1, 0xA6, 0x67, 0x97, 0x5D
  			};
  
  			// The first 4 bytes are set to zero and a large counter
  			// is used; this makes the RFC 7539 version of ChaCha20
  			// compatible with the original specification by
  			// D. J. Bernstein.
  			pbIV = new byte[12] { 0x00, 0x00, 0x00, 0x00,
  				0x1A, 0xDA, 0x31, 0xD5, 0xCF, 0x68, 0x82, 0x21
  			};
  
  			pb = new byte[128];
  
  			pbExpc = new byte[128] {
  				0xF6, 0x3A, 0x89, 0xB7, 0x5C, 0x22, 0x71, 0xF9,
  				0x36, 0x88, 0x16, 0x54, 0x2B, 0xA5, 0x2F, 0x06,
  				0xED, 0x49, 0x24, 0x17, 0x92, 0x30, 0x2B, 0x00,
  				0xB5, 0xE8, 0xF8, 0x0A, 0xE9, 0xA4, 0x73, 0xAF,
  				0xC2, 0x5B, 0x21, 0x8F, 0x51, 0x9A, 0xF0, 0xFD,
  				0xD4, 0x06, 0x36, 0x2E, 0x8D, 0x69, 0xDE, 0x7F,
  				0x54, 0xC6, 0x04, 0xA6, 0xE0, 0x0F, 0x35, 0x3F,
  				0x11, 0x0F, 0x77, 0x1B, 0xDC, 0xA8, 0xAB, 0x92,
  
  				0xE5, 0xFB, 0xC3, 0x4E, 0x60, 0xA1, 0xD9, 0xA9,
  				0xDB, 0x17, 0x34, 0x5B, 0x0A, 0x40, 0x27, 0x36,
  				0x85, 0x3B, 0xF9, 0x10, 0xB0, 0x60, 0xBD, 0xF1,
  				0xF8, 0x97, 0xB6, 0x29, 0x0F, 0x01, 0xD1, 0x38,
  				0xAE, 0x2C, 0x4C, 0x90, 0x22, 0x5B, 0xA9, 0xEA,
  				0x14, 0xD5, 0x18, 0xF5, 0x59, 0x29, 0xDE, 0xA0,
  				0x98, 0xCA, 0x7A, 0x6C, 0xCF, 0xE6, 0x12, 0x27,
  				0x05, 0x3C, 0x84, 0xE4, 0x9A, 0x4A, 0x33, 0x32
  			};
  
  			using(ChaCha20Cipher c = new ChaCha20Cipher(pbKey, pbIV, true))
  			{
  				c.Decrypt(pb, 0, pb.Length);
  
  				if(!MemUtil.ArraysEqual(pb, pbExpc))
  					throw new SecurityException("ChaCha20-7");
  			}
  #endif
  		}
  
  		private static void TestSha256(Random r)
  		{
  #if DEBUG
  			byte[] pbData = new byte[517];
  			r.NextBytes(pbData);
  
  			byte[] pbH1;
  			using(SHA256Managed h1 = new SHA256Managed())
  			{
  				int i = 0;
  				while(i != pbData.Length)
  				{
  					int cb = r.Next(pbData.Length - i) + 1;
  					h1.TransformBlock(pbData, i, cb, pbData, i);
  					i += cb;
  				}
  				h1.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
  				pbH1 = h1.Hash;
  			}
  
  			byte[] pbH2;
  			using(SHA256Managed h2 = new SHA256Managed())
  			{
  				pbH2 = h2.ComputeHash(pbData);
  			}
  
  			if(!MemUtil.ArraysEqual(pbH1, pbH2))
  				throw new SecurityException("SHA-256");
  #endif
  		}
  
  		private static void TestBlake2b(Random r)
  		{
  #if DEBUG
  			Blake2b h = new Blake2b();
  
  			// ======================================================
  			// From https://tools.ietf.org/html/rfc7693
  
  			byte[] pbData = StrUtil.Utf8.GetBytes("abc");
  			byte[] pbExpc = new byte[64] {
  				0xBA, 0x80, 0xA5, 0x3F, 0x98, 0x1C, 0x4D, 0x0D,
  				0x6A, 0x27, 0x97, 0xB6, 0x9F, 0x12, 0xF6, 0xE9,
  				0x4C, 0x21, 0x2F, 0x14, 0x68, 0x5A, 0xC4, 0xB7,
  				0x4B, 0x12, 0xBB, 0x6F, 0xDB, 0xFF, 0xA2, 0xD1,
  				0x7D, 0x87, 0xC5, 0x39, 0x2A, 0xAB, 0x79, 0x2D,
  				0xC2, 0x52, 0xD5, 0xDE, 0x45, 0x33, 0xCC, 0x95,
  				0x18, 0xD3, 0x8A, 0xA8, 0xDB, 0xF1, 0x92, 0x5A,
  				0xB9, 0x23, 0x86, 0xED, 0xD4, 0x00, 0x99, 0x23
  			};
  
  			byte[] pbC = h.ComputeHash(pbData);
  			if(!MemUtil.ArraysEqual(pbC, pbExpc))
  				throw new SecurityException("Blake2b-1");
  
  			// ======================================================
  			// Computed using the official b2sum tool
  
  			pbExpc = new byte[64] {
  				0x78, 0x6A, 0x02, 0xF7, 0x42, 0x01, 0x59, 0x03,
  				0xC6, 0xC6, 0xFD, 0x85, 0x25, 0x52, 0xD2, 0x72,
  				0x91, 0x2F, 0x47, 0x40, 0xE1, 0x58, 0x47, 0x61,
  				0x8A, 0x86, 0xE2, 0x17, 0xF7, 0x1F, 0x54, 0x19,
  				0xD2, 0x5E, 0x10, 0x31, 0xAF, 0xEE, 0x58, 0x53,
  				0x13, 0x89, 0x64, 0x44, 0x93, 0x4E, 0xB0, 0x4B,
  				0x90, 0x3A, 0x68, 0x5B, 0x14, 0x48, 0xB7, 0x55,
  				0xD5, 0x6F, 0x70, 0x1A, 0xFE, 0x9B, 0xE2, 0xCE
  			};
  
  			pbC = h.ComputeHash(MemUtil.EmptyByteArray);
  			if(!MemUtil.ArraysEqual(pbC, pbExpc))
  				throw new SecurityException("Blake2b-2");
  
  			// ======================================================
  			// Computed using the official b2sum tool
  
  			string strS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.:,;_-\r\n";
  			StringBuilder sb = new StringBuilder();
  			for(int i = 0; i < 1000; ++i) sb.Append(strS);
  			pbData = StrUtil.Utf8.GetBytes(sb.ToString());
  
  			pbExpc = new byte[64] {
  				0x59, 0x69, 0x8D, 0x3B, 0x83, 0xF4, 0x02, 0x4E,
  				0xD8, 0x99, 0x26, 0x0E, 0xF4, 0xE5, 0x9F, 0x20,
  				0xDC, 0x31, 0xEE, 0x5B, 0x45, 0xEA, 0xBB, 0xFC,
  				0x1C, 0x0A, 0x8E, 0xED, 0xAA, 0x7A, 0xFF, 0x50,
  				0x82, 0xA5, 0x8F, 0xBC, 0x4A, 0x46, 0xFC, 0xC5,
  				0xEF, 0x44, 0x4E, 0x89, 0x80, 0x7D, 0x3F, 0x1C,
  				0xC1, 0x94, 0x45, 0xBB, 0xC0, 0x2C, 0x95, 0xAA,
  				0x3F, 0x08, 0x8A, 0x93, 0xF8, 0x75, 0x91, 0xB0
  			};
  
  			int p = 0;
  			while(p < pbData.Length)
  			{
  				int cb = r.Next(pbData.Length - p) + 1;
  				h.TransformBlock(pbData, p, cb, pbData, p);
  				p += cb;
  			}
  			Debug.Assert(p == pbData.Length);
  
  			h.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
  
  			if(!MemUtil.ArraysEqual(h.Hash, pbExpc))
  				throw new SecurityException("Blake2b-3");
  
  			h.Clear();
  #endif
  		}
  
  		private static void TestArgon2()
  		{
  #if DEBUG
  
gt: 			Argon2Kdf kdf = new Argon2Kdf();