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keystore fixes
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72f9951cb1
commit
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@ -33,8 +33,7 @@ namespace Bit.Android.Services
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public KeyStoreBackedStorageService(ISettings settings)
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{
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_oldKeyStorageService = new KeyStoreStorageService();
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_oldKeyStorageService = new KeyStoreStorageService(new char[] { });
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_settings = settings;
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_keyStore = KeyStore.GetInstance(AndroidKeyStore);
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@ -46,7 +45,7 @@ namespace Bit.Android.Services
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public bool Contains(string key)
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{
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return _settings.Contains(string.Format(SettingsFormat, key));
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return _settings.Contains(string.Format(SettingsFormat, key)) || _oldKeyStorageService.Contains(key);
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}
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public void Delete(string key)
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@ -57,26 +56,28 @@ namespace Bit.Android.Services
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public byte[] Retrieve(string key)
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{
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if(!_settings.Contains(key))
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var formattedKey = string.Format(SettingsFormat, key);
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if(!_settings.Contains(formattedKey))
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{
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return TryGetAndMigrateFromOldKeyStore(key);
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}
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var cipherString = _settings.GetValueOrDefault<string>(string.Format(SettingsFormat, key));
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var cipherString = _settings.GetValueOrDefault<string>(formattedKey);
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return AesDecrypt(cipherString);
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}
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public void Store(string key, byte[] dataBytes)
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{
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var formattedKey = string.Format(SettingsFormat, key);
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CleanupOldKeyStore(key);
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if(dataBytes == null)
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{
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_settings.Remove(key);
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_settings.Remove(formattedKey);
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return;
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}
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var cipherString = AesEncrypt(dataBytes);
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_settings.AddOrUpdateValue(key, cipherString);
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_settings.AddOrUpdateValue(formattedKey, cipherString);
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}
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private byte[] RandomBytes(int length)
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@ -160,10 +161,11 @@ namespace Bit.Android.Services
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private string AesEncrypt(byte[] input)
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{
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var cipher = Cipher.GetInstance(AesMode);
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var ivBytes = RandomBytes(12);
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var spec = new GCMParameterSpec(128, ivBytes);
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cipher.Init(CipherMode.EncryptMode, GetAesKey(), spec);
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//var ivBytes = RandomBytes(12);
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//var spec = new GCMParameterSpec(128, ivBytes);
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cipher.Init(CipherMode.EncryptMode, GetAesKey());
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var encBytes = cipher.DoFinal(input);
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var ivBytes = cipher.GetIV();
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return $"{Convert.ToBase64String(ivBytes)}|{Convert.ToBase64String(encBytes)}";
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}
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