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remove old keystore storage service

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This commit is contained in:
Kyle Spearrin 2017-11-10 16:49:13 -05:00
parent 1768e8cb62
commit daf6d1936f
3 changed files with 1 additions and 130 deletions
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1
src/Android/Android.csproj
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@ -313,7 +313,6 @@
<Compile Include="Services\AppInfoService.cs" />
<Compile Include="Services\DeviceActionService.cs" />
<Compile Include="Services\BouncyCastleKeyDerivationService.cs" />
<Compile Include="Services\KeyStoreStorageService.cs" />
<Compile Include="MainActivity.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="Services\LogService.cs" />

17
src/Android/Services/AndroidKeyStoreStorageService.cs
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@ -33,14 +33,12 @@ namespace Bit.Android.Services
private readonly bool _oldAndroid;
private readonly ISettings _settings;
private readonly KeyStore _keyStore;
private readonly ISecureStorageService _oldKeyStorageService;
public AndroidKeyStoreStorageService(ISettings settings)
{
_oldAndroid = Build.VERSION.SdkInt < BuildVersionCodes.M;
_rsaMode = _oldAndroid ? "RSA/ECB/PKCS1Padding" : "RSA/ECB/OAEPWithSHA-1AndMGF1Padding";
_oldKeyStorageService = new KeyStoreStorageService(new char[] { });
_settings = settings;
_keyStore = KeyStore.GetInstance(AndroidKeyStore);
@ -53,8 +51,7 @@ namespace Bit.Android.Services
public bool Contains(string key)
{
return _settings.Contains(string.Format(SettingsFormat, key)) ||
_settings.Contains(string.Format(SettingsFormatV1, key)) ||
_oldKeyStorageService.Contains(key);
_settings.Contains(string.Format(SettingsFormatV1, key));
}
public void Delete(string key)
@ -297,13 +294,6 @@ namespace Bit.Android.Services
private byte[] TryGetAndMigrate(string key)
{
if(_oldKeyStorageService.Contains(key))
{
var value = _oldKeyStorageService.Retrieve(key);
Store(key, value);
return value;
}
var formattedKeyV1 = string.Format(SettingsFormatV1, key);
if(_settings.Contains(formattedKeyV1))
{
@ -331,11 +321,6 @@ namespace Bit.Android.Services
private void CleanupOld(string key)
{
if(_oldKeyStorageService.Contains(key))
{
_oldKeyStorageService.Delete(key);
}
var formattedKeyV1 = string.Format(SettingsFormatV1, key);
if(_settings.Contains(formattedKeyV1))
{

113
src/Android/Services/KeyStoreStorageService.cs
View file

@ -1,113 +0,0 @@
using System.IO;
using System.IO.IsolatedStorage;
using Java.Lang;
using Java.Security;
using Javax.Crypto;
using Android.OS;
using Bit.App.Abstractions;
namespace Bit.Android.Services
{
[System.Obsolete]
public class KeyStoreStorageService : ISecureStorageService
{
private const string StorageFile = "Bit.Android.KeyStoreStorageService";
private static readonly object SaveLock = new object();
private readonly KeyStore _keyStore;
private readonly KeyStore.PasswordProtection _protection;
public KeyStoreStorageService()
: this(Build.Serial.ToCharArray()) { }
public KeyStoreStorageService(char[] password)
{
_keyStore = KeyStore.GetInstance(KeyStore.DefaultType);
_protection = new KeyStore.PasswordProtection(password);
if(File.FileExists(StorageFile))
{
using(var stream = new IsolatedStorageFileStream(StorageFile, FileMode.Open, FileAccess.Read, File))
{
_keyStore.Load(stream, password);
}
}
else
{
_keyStore.Load(null, password);
}
}
private static IsolatedStorageFile File
{
get { return IsolatedStorageFile.GetUserStoreForApplication(); }
}
public void Store(string key, byte[] dataBytes)
{
_keyStore.SetEntry(key, new KeyStore.SecretKeyEntry(new SecureData(dataBytes)), _protection);
Save();
}
public byte[] Retrieve(string key)
{
var entry = _keyStore.GetEntry(key, _protection) as KeyStore.SecretKeyEntry;
if(entry == null)
{
return null;
}
return entry.SecretKey.GetEncoded();
}
public void Delete(string key)
{
_keyStore.DeleteEntry(key);
Save();
}
public bool Contains(string key)
{
return _keyStore.ContainsAlias(key);
}
private void Save()
{
lock(SaveLock)
{
using(var stream = new IsolatedStorageFileStream(StorageFile, FileMode.OpenOrCreate, FileAccess.Write, File))
{
_keyStore.Store(stream, _protection.GetPassword());
}
}
}
private class SecureData : Object, ISecretKey
{
private const string Raw = "RAW";
private readonly byte[] _data;
public SecureData(byte[] dataBytes)
{
_data = dataBytes;
}
public string Algorithm
{
get { return Raw; }
}
public string Format
{
get { return Raw; }
}
public byte[] GetEncoded()
{
return _data;
}
}
}
}