encryption for sensitive data
everything we can reasonably encrypt is now encrypted, since the app is a rather attractive attack vector for attackers. this continues the work started in v1.1 to secure the app. Signed-off-by: androidacy-user <opensource@androidacy.com>pull/287/head
androidacy-user
1 year ago
parent
17cf8baee9
commit
5029486d4f
@ -0,0 +1,108 @@
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package com.fox2code.mmm.settings;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.content.SharedPreferences;
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import androidx.annotation.Nullable;
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import androidx.preference.PreferenceDataStore;
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import androidx.security.crypto.EncryptedSharedPreferences;
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import androidx.security.crypto.MasterKey;
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import com.fox2code.mmm.MainApplication;
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import java.io.IOException;
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import java.security.GeneralSecurityException;
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import java.util.Set;
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public class EncryptedPreferenceDataStore extends PreferenceDataStore {
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private static final String CONFIG_FILE_NAME = "mmm";
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@SuppressLint("StaticFieldLeak")
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private static EncryptedPreferenceDataStore mInstance;
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private SharedPreferences mSharedPreferences;
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private EncryptedPreferenceDataStore(Context context) {
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try {
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MasterKey mainKeyAlias;
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try {
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mainKeyAlias = new MasterKey.Builder(MainApplication.getINSTANCE().getApplicationContext()).setKeyScheme(MasterKey.KeyScheme.AES256_GCM).build();
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} catch (GeneralSecurityException | IOException e) {
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throw new RuntimeException(e);
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}
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mSharedPreferences = EncryptedSharedPreferences.create(MainApplication.getINSTANCE().getApplicationContext(), "mmm", mainKeyAlias, EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV, EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM);
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} catch (Exception e) {
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// Fallback
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mSharedPreferences = context.getSharedPreferences(CONFIG_FILE_NAME, Context.MODE_PRIVATE);
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}
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}
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public static PreferenceDataStore getInstance() {
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if (mInstance == null) {
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mInstance = new EncryptedPreferenceDataStore(MainApplication.getINSTANCE().getApplicationContext());
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}
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return mInstance;
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}
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@Override
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public void putString(String key, @Nullable String value) {
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mSharedPreferences.edit().putString(key, value).apply();
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}
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@Override
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public void putStringSet(String key, @Nullable Set<String> values) {
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mSharedPreferences.edit().putStringSet(key, values).apply();
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}
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@Override
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public void putInt(String key, int value) {
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mSharedPreferences.edit().putInt(key, value).apply();
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}
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@Override
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public void putLong(String key, long value) {
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mSharedPreferences.edit().putLong(key, value).apply();
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}
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@Override
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public void putFloat(String key, float value) {
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mSharedPreferences.edit().putFloat(key, value).apply();
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}
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@Override
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public void putBoolean(String key, boolean value) {
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mSharedPreferences.edit().putBoolean(key, value).apply();
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}
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@Nullable
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@Override
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public String getString(String key, @Nullable String defValue) {
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return mSharedPreferences.getString(key, defValue);
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}
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@Nullable
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@Override
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public Set<String> getStringSet(String key, @Nullable Set<String> defValues) {
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return mSharedPreferences.getStringSet(key, defValues);
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}
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@Override
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public int getInt(String key, int defValue) {
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return mSharedPreferences.getInt(key, defValue);
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}
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@Override
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public long getLong(String key, long defValue) {
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return mSharedPreferences.getLong(key, defValue);
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}
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@Override
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public float getFloat(String key, float defValue) {
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return mSharedPreferences.getFloat(key, defValue);
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}
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@Override
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public boolean getBoolean(String key, boolean defValue) {
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return mSharedPreferences.getBoolean(key, defValue);
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}
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}
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@ -1,6 +1,6 @@
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#Sun Jun 05 10:40:53 EDT 2022
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distributionBase=GRADLE_USER_HOME
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distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-rc-1-bin.zip
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distributionUrl=https\://services.gradle.org/distributions/gradle-8.0.1-bin.zip
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distributionPath=wrapper/dists
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zipStorePath=wrapper/dists
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zipStoreBase=GRADLE_USER_HOME
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