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Remove keys from the KeyStore when disabling encryption or fingerprint

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This commit is contained in:
Alexander Bakker 2019-04-04 15:27:24 +02:00
parent 36e3dd559c
commit 14fa493ac9
4 changed files with 35 additions and 3 deletions
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11
app/src/main/java/com/beemdevelopment/aegis/crypto/KeyStoreHandle.java
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@ -14,6 +14,7 @@ import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.util.Collections;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
@ -100,6 +101,16 @@ public class KeyStoreHandle {
}
}
public void clear() throws KeyStoreHandleException {
try {
for (String alias : Collections.list(_keyStore.aliases())) {
deleteKey(alias);
}
} catch (KeyStoreException e) {
throw new KeyStoreHandleException(e);
}
}
public static boolean isSupported() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
}

22
app/src/main/java/com/beemdevelopment/aegis/ui/PreferencesFragment.java
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@ -20,6 +20,8 @@ import com.beemdevelopment.aegis.BuildConfig;
import com.beemdevelopment.aegis.R;
import com.beemdevelopment.aegis.Theme;
import com.beemdevelopment.aegis.ViewMode;
import com.beemdevelopment.aegis.crypto.KeyStoreHandle;
import com.beemdevelopment.aegis.crypto.KeyStoreHandleException;
import com.beemdevelopment.aegis.db.DatabaseEntry;
import com.beemdevelopment.aegis.db.DatabaseFileCredentials;
import com.beemdevelopment.aegis.db.DatabaseManager;
@ -257,8 +259,18 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
try {
_db.disableEncryption();
} catch (DatabaseManagerException e) {
Toast.makeText(getActivity(), getString(R.string.encrypting_error), Toast.LENGTH_SHORT).show();
Toast.makeText(getActivity(), getString(R.string.disable_encryption_error), Toast.LENGTH_SHORT).show();
return;
}
// clear the KeyStore
try {
KeyStoreHandle handle = new KeyStoreHandle();
handle.clear();
} catch (KeyStoreHandleException e) {
e.printStackTrace();
}
updateEncryptionPreferences();
}
})
@ -284,6 +296,14 @@ public class PreferencesFragment extends PreferenceFragmentCompat {
slots.remove(slot);
_db.setCredentials(creds);
// remove the KeyStore key
try {
KeyStoreHandle handle = new KeyStoreHandle();
handle.deleteKey(slot.getUUID().toString());
} catch (KeyStoreHandleException e) {
e.printStackTrace();
}
saveDatabase();
updateEncryptionPreferences();
}

2
app/src/main/res/values-ru/strings.xml
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@ -106,7 +106,7 @@
<string name="saving_error">Произошла ошибка при попытке сохранить хранилище</string>
<string name="disable_encryption">Отключить шифрование</string>
<string name="disable_encryption_description">Вы уверены что хотите отключить шифрование? Это приведет к хранению хранилища в виде простого текста.</string>
<string name="encrypting_error">Произошла ошибка при включении шифрования</string>
<string name="enable_encryption_error">Произошла ошибка при включении шифрования</string>
<string name="permission_denied">Доступ запрещен</string>
<string name="choose_application">Выберите приложение из которого вы хотите импортировать базу данных.</string>
<string name="choose_theme">Выберите тему</string>

3
app/src/main/res/values/strings.xml
View file

@ -119,7 +119,8 @@
<string name="saving_error">An error occurred while trying to save the vault</string>
<string name="disable_encryption">Disable encryption</string>
<string name="disable_encryption_description">Are you sure you want to disable encryption? This will cause the vault to be stored in plain text.</string>
<string name="encrypting_error">An error occurred while enabling encryption</string>
<string name="enable_encryption_error">An error occurred while enabling encryption</string>
<string name="disable_encryption_error">An error occurred while disabling encryption</string>
<string name="permission_denied">Permission denied</string>
<string name="choose_application">Select the application you\'d like to import a database from</string>
<string name="choose_theme">Select your desired theme</string>