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Code Issues Releases Wiki Activity

adaptions to changes in KeePassLib

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This commit is contained in:
Philipp Crocoll 2016-08-31 22:18:32 +02:00
parent 2e8c76d0c4
commit 6c043e9b79
6 changed files with 57 additions and 19 deletions
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2
src/KeePassLib2Android/Cryptography/KeyDerivation/AesKdf.cs
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@ -122,7 +122,7 @@ namespace KeePassLib.Cryptography.KeyDerivation
// Try to use the native library first
if(NativeLib.TransformKey256(pbNewKey, pbKeySeed32, uNumRounds))
return CryptoUtil.HashSha256(pbNewKey);
if(TransformKeyManaged(pbNewKey, pbKeySeed32, uNumRounds))
return CryptoUtil.HashSha256(pbNewKey);
}

22
src/Kp2aBusinessLogic/database/KdbDatabaseFormat.cs
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@ -13,10 +13,10 @@ using Java.Util;
using KeePassLib;
using KeePassLib.Cryptography;
using KeePassLib.Cryptography.Cipher;
using KeePassLib.Cryptography.KeyDerivation;
using KeePassLib.Interfaces;
using KeePassLib.Keys;
using KeePassLib.Security;
using Exception = System.Exception;
using PwIcon = KeePassLib.PwIcon;
using Random = System.Random;
@ -63,7 +63,10 @@ namespace keepass2android
var dbv3 = importer.OpenDatabase(hashingStream, password, keyfileStream);
db.Name = dbv3.Name;
db.KeyEncryptionRounds = (ulong) dbv3.NumKeyEncRounds;
db.KdfParameters = (new AesKdf()).GetDefaultParameters();
db.KdfParameters.SetUInt64(AesKdf.ParamRounds, (ulong)dbv3.NumKeyEncRounds);
db.RootGroup = ConvertGroup(dbv3.RootGroup);
if (dbv3.Algorithm == PwEncryptionAlgorithm.Rjindal)
{
@ -235,7 +238,20 @@ namespace keepass2android
keyfileContents = new MemoryStream(keyfile.RawFileData.ReadData());
}
db.SetMasterKey(password, keyfileContents);
db.NumRounds = (long) kpDatabase.KeyEncryptionRounds;
AesKdf kdf = new AesKdf();
if (!kdf.Uuid.Equals(kpDatabase.KdfParameters.KdfUuid))
db.NumRounds = (uint)PwDefs.DefaultKeyEncryptionRounds;
else
{
ulong uRounds = kpDatabase.KdfParameters.GetUInt64(
AesKdf.ParamRounds, PwDefs.DefaultKeyEncryptionRounds);
uRounds = Math.Min(uRounds, 0xFFFFFFFEUL);
db.NumRounds = (uint)uRounds;
}
db.Name = kpDatabase.Name;
if (kpDatabase.DataCipherUuid.Equals(StandardAesEngine.AesUuid))
{

3
src/Kp2aBusinessLogic/database/edit/CreateDB.cs
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@ -18,6 +18,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
using System.Collections.Generic;
using Android.Content;
using KeePassLib;
using KeePassLib.Cryptography.KeyDerivation;
using KeePassLib.Serialization;
using KeePassLib.Keys;
@ -65,7 +66,7 @@ namespace keepass2android
db.KpDatabase.New(_ioc, _key);
db.KpDatabase.KeyEncryptionRounds = DefaultEncryptionRounds;
db.KpDatabase.KdfParameters = (new AesKdf()).GetDefaultParameters();
db.KpDatabase.Name = "Keepass2Android Password Database";
//re-set the name of the root group because the PwDatabase uses UrlUtil which is not appropriate for all file storages:
db.KpDatabase.RootGroup.Name = _app.GetFileStorage(_ioc).GetFilenameWithoutPathAndExt(_ioc);

7
src/keepass2android/addons/OtpKeyProv/OtpUtil.cs
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@ -26,6 +26,7 @@ using System.Diagnostics;
using KeePassLib.Cryptography;
using KeePassLib.Cryptography.Cipher;
using KeePassLib.Cryptography.KeyDerivation;
using KeePassLib.Keys;
using KeePassLib.Utility;
@ -72,7 +73,7 @@ namespace OtpKeyProv
Array.Copy(pbData, pbEnc, pbData.Length);
Salsa20Cipher enc = new Salsa20Cipher(pbKey32, pbIV8);
enc.Encrypt(pbEnc, pbEnc.Length, true);
enc.Encrypt(pbEnc, 0, pbEnc.Length);
return ("s20://" + Convert.ToBase64String(pbEnc,
Base64FormattingOptions.None));
@ -90,7 +91,7 @@ namespace OtpKeyProv
Array.Copy(pbIV16, 0, pbIV8, 0, 8);
Salsa20Cipher dec = new Salsa20Cipher(pbKey32, pbIV8);
dec.Encrypt(pb, pb.Length, true);
dec.Encrypt(pb, 0, pb.Length);
return pb;
}
@ -102,7 +103,7 @@ namespace OtpKeyProv
byte[] pbHash = sha256.ComputeHash(pbData);
sha256.Clear();
if(!CompositeKey.TransformKeyManaged(pbHash, pbTrfKey32, uTrfRounds))
if(!AesKdf.TransformKeyManaged(pbHash, pbTrfKey32, uTrfRounds))
return null;
sha256 = new SHA256Managed();

8
src/keepass2android/settings/DatabaseSettingsActivity.cs
View File

@ -344,11 +344,11 @@ namespace keepass2android
Database db = App.Kp2a.GetDb();
if (db.Loaded)
{
Preference rounds = FindPreference(GetString(Resource.String.rounds_key));
/*Preference rounds = FindPreference(GetString(Resource.String.rounds_key));
rounds.PreferenceChange += (sender, e) => SetRounds(db, e.Preference);
rounds.Enabled = db.CanWrite;
SetRounds(db, rounds);
*/
PrepareDefaultUsername(db);
PrepareDatabaseName(db);
PrepareMasterPassword();
@ -797,11 +797,11 @@ namespace keepass2android
return targetIoc;
}
/*
private void SetRounds(Database db, Preference rounds)
{
rounds.Summary = db.KpDatabase.KeyEncryptionRounds.ToString(CultureInfo.InvariantCulture);
}
}*/
private void SetAlgorithm(Database db, Preference algorithm)
{

34
src/keepass2android/settings/RoundsPreference.cs
View File

@ -23,6 +23,7 @@ using Android.Widget;
using Android.Preferences;
using KeePassLib;
using Android.Util;
using KeePassLib.Cryptography.KeyDerivation;
namespace keepass2android.settings
{
@ -37,14 +38,33 @@ namespace keepass2android.settings
View view = base.OnCreateDialogView();
RoundsView = (TextView) view.FindViewById(Resource.Id.rounds);
Database db = App.Kp2a.GetDb();
ulong numRounds = db.KpDatabase.KeyEncryptionRounds;
ulong numRounds = KeyEncryptionRounds;
RoundsView.Text = numRounds.ToString(CultureInfo.InvariantCulture);
return view;
}
public ulong KeyEncryptionRounds
{
get
{
AesKdf kdf = new AesKdf();
if (!kdf.Uuid.Equals(App.Kp2a.GetDb().KpDatabase.KdfParameters.KdfUuid))
return (uint) PwDefs.DefaultKeyEncryptionRounds;
else
{
ulong uRounds = App.Kp2a.GetDb().KpDatabase.KdfParameters.GetUInt64(
AesKdf.ParamRounds, PwDefs.DefaultKeyEncryptionRounds);
uRounds = Math.Min(uRounds, 0xFFFFFFFEUL);
return (uint) uRounds;
}
}
set { App.Kp2a.GetDb().KpDatabase.KdfParameters.SetUInt64(AesKdf.ParamRounds, value); }
}
public RoundsPreference(Context context, IAttributeSet attrs):base(context, attrs) {
}
@ -70,14 +90,14 @@ namespace keepass2android.settings
Database db = App.Kp2a.GetDb();
ulong oldRounds = db.KpDatabase.KeyEncryptionRounds;
ulong oldRounds = KeyEncryptionRounds;
if (oldRounds == rounds)
{
return;
}
db.KpDatabase.KeyEncryptionRounds = rounds;
KeyEncryptionRounds = rounds;
Handler handler = new Handler();
SaveDb save = new SaveDb(Context, App.Kp2a, new AfterSave(Context, handler, oldRounds, this));
@ -109,7 +129,7 @@ namespace keepass2android.settings
} else {
DisplayMessage(_ctx);
App.Kp2a.GetDb().KpDatabase.KeyEncryptionRounds = _oldRounds;
App.Kp2a.GetDb().KpDatabase.KdfParameters.SetUInt64(AesKdf.ParamRounds, _oldRounds);
}
base.Run();