keepass2android/src/KeePassLib2Android/Cryptography/KeyDerivation/KdfPool.cs

97 lines
2.2 KiB
C#

/*
KeePass Password Safe - The Open-Source Password Manager
Copyright (C) 2003-2017 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.Text;
using KeePassLib.Utility;
namespace KeePassLib.Cryptography.KeyDerivation
{
public static class KdfPool
{
private static List<KdfEngine> g_l = new List<KdfEngine>();
public static IEnumerable<KdfEngine> Engines
{
get
{
EnsureInitialized();
return g_l;
}
}
private static void EnsureInitialized()
{
if(g_l.Count > 0) return;
g_l.Add(new AesKdf());
g_l.Add(new Argon2Kdf());
}
internal static KdfParameters GetDefaultParameters()
{
EnsureInitialized();
return g_l[0].GetDefaultParameters();
}
public static KdfEngine Get(PwUuid pu)
{
if(pu == null) { Debug.Assert(false); return null; }
EnsureInitialized();
foreach(KdfEngine kdf in g_l)
{
if(pu.Equals(kdf.Uuid)) return kdf;
}
return null;
}
public static KdfEngine Get(string strName)
{
if(string.IsNullOrEmpty(strName)) { Debug.Assert(false); return null; }
EnsureInitialized();
foreach(KdfEngine kdf in g_l)
{
if(strName.Equals(kdf.Name, StrUtil.CaseIgnoreCmp)) return kdf;
}
return null;
}
public static void Add(KdfEngine kdf)
{
if(kdf == null) { Debug.Assert(false); return; }
EnsureInitialized();
if(Get(kdf.Uuid) != null) { Debug.Assert(false); return; }
if(Get(kdf.Name) != null) { Debug.Assert(false); return; }
g_l.Add(kdf);
}
}
}