46 lines
2.4 KiB
C#
46 lines
2.4 KiB
C#
/*************************************************************************
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* ModernUO *
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* Copyright (C) 2019-2020 - ModernUO Development Team *
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* Email: hi@modernuo.com *
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* File: SHA2PasswordProtection.cs *
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* Created: 2020/05/01 - Updated: 2020/05/02 *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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*************************************************************************/
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using System;
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using System.Security.Cryptography;
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using System.Text;
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using Server.Misc;
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namespace Server.Accounting.Security
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{
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public class SHA2PasswordProtection : IPasswordProtection
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{
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public static IPasswordProtection Instance = new SHA2PasswordProtection();
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private SHA512CryptoServiceProvider m_SHA2HashProvider = new SHA512CryptoServiceProvider();
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public string EncryptPassword(string plainPassword)
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{
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ReadOnlySpan<char> password = plainPassword.AsSpan(0, Math.Min(256, plainPassword.Length));
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byte[] bytes = new byte[Encoding.ASCII.GetByteCount(password)];
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Encoding.ASCII.GetBytes(password, bytes);
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return HexStringConverter.GetString(m_SHA2HashProvider.ComputeHash(bytes));
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}
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public bool ValidatePassword(string encryptedPassword, string plainPassword) =>
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EncryptPassword(plainPassword) == encryptedPassword;
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}
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}
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