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Adds assemblies config, fixes crash bugs. (#134)

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Kamron Batman 2020-05-09 12:55:56 -07:00 • committed by GitHub
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3223 changed files with 191 additions and 191 deletions
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Projects/Scripts/Accounting/Security/PBKDF2PasswordProtection.cs
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/*************************************************************************
* ModernUO *
* Copyright (C) 2019-2020 - ModernUO Development Team *
* Email: hi@modernuo.com *
* File: PBKDF2PasswordProtection.cs *
* Created: 2020/04/30 - Updated: 2020/05/01 *
* *
* 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 3 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, see <http://www.gnu.org/licenses/>. *
*************************************************************************/
using System;
using System.Buffers.Binary;
using System.Security.Cryptography;
using Server.Misc;
namespace Server.Accounting.Security
{
public class PBKDF2PasswordProtection : IPasswordProtection
{
public static IPasswordProtection Instance = new PBKDF2PasswordProtection();
private const ushort m_MinIterations = 1024;
private const ushort m_MaxIterations = 1536;
private static readonly HashAlgorithmName m_Algorithm = HashAlgorithmName.SHA256;
private const int m_SaltSize = 8;
private const int m_HashSize = 32;
private const int m_OutputSize = 2 + m_SaltSize + m_HashSize;
public string EncryptPassword(string plainPassword)
{
Span<byte> output = stackalloc byte[m_OutputSize];
int iterations = Utility.RandomMinMax(m_MinIterations, m_MaxIterations);
BinaryPrimitives.WriteUInt16LittleEndian(output.Slice(0, 2), (ushort)iterations);
var rfc2898 = new Rfc2898DeriveBytes(plainPassword, m_SaltSize, iterations, m_Algorithm);
rfc2898.Salt.CopyTo(output.Slice(2, m_SaltSize));
rfc2898.GetBytes(m_HashSize).CopyTo(output.Slice(m_SaltSize + 2));
return HexStringConverter.GetString(output);
}
public bool ValidatePassword(string encryptedPassword, string plainPassword)
{
Span<byte> encryptedBytes = stackalloc byte[m_OutputSize];
HexStringConverter.GetBytes(encryptedPassword, encryptedBytes);
ushort iterations = BinaryPrimitives.ReadUInt16LittleEndian(encryptedBytes.Slice(0, 2));
Span<byte> salt = encryptedBytes.Slice(2, m_SaltSize);
ReadOnlySpan<byte> hash =
new Rfc2898DeriveBytes(plainPassword, salt.ToArray(), iterations, m_Algorithm).GetBytes(m_HashSize);
return hash.SequenceEqual(encryptedBytes.Slice(m_SaltSize + 2));
}
}
}