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nativephp/mobile-secure-storage

Secure storage plugin for NativePHP Mobile (Keychain/EncryptedSharedPreferences)

Secure Storage Plugin for NativePHP Mobile#

Secure key-value storage using iOS Keychain and Android EncryptedSharedPreferences.

Overview#

The SecureStorage API provides encrypted storage for sensitive data like tokens, credentials, and user secrets.

Installation#

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composer require nativephp/mobile-secure-storage

Usage#

PHP (Livewire/Blade)#

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use Native\Mobile\Facades\SecureStorage;
 
// Store a value
SecureStorage::set('auth_token', 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...');
 
// Retrieve a value
$token = SecureStorage::get('auth_token');
 
if ($token) {
    // Use the token
}
 
// Delete a value
SecureStorage::delete('auth_token');

JavaScript (Vue/React/Inertia)#

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import { SecureStorage } from '#nativephp';
 
// Store a value
await SecureStorage.set('auth_token', 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...');
 
// Retrieve a value
const result = await SecureStorage.get('auth_token');
if (result.value) {
    console.log('Token:', result.value);
}
 
// Delete a value
await SecureStorage.delete('auth_token');

Methods#

set(string $key, ?string $value): array#

Store or delete a value.

Parameter Type Description
key string The key to store under
value string|null Value to store (null to delete)

Returns: { success: true }

get(string $key): array#

Retrieve a stored value.

Parameter Type Description
key string The key to retrieve

Returns: { value: string } (empty string if not found)

delete(string $key): array#

Delete a stored value.

Parameter Type Description
key string The key to delete

Returns: { success: true }

Security#

Android#

  • Uses EncryptedSharedPreferences with Android Keystore
  • AES-256-GCM encryption for values
  • AES-256-SIV encryption for keys
  • Data is hardware-backed on supported devices

iOS#

  • Uses iOS Keychain Services
  • Data is encrypted at rest
  • Protected by kSecAttrAccessibleWhenUnlockedThisDeviceOnly
  • Hardware-backed on devices with Secure Enclave

Testing#

The plugin extends the NativePHP testing suite with secure-storage-specific helpers, so your app tests can fake and assert keystore activity without knowing any bridge internals:

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use Native\Mobile\Testing\Native;
 
it('stores the token on login', function () {
    Native::fakeBridge()->withSecureStorage();
 
    Native::test(LoginScreen::class)
        ->tap('Sign in')
        ->assertStored('auth_token', 'fresh-token');
});
 
it('reads the stored token on launch', function () {
    Native::fakeBridge()->withSecureStorage(['auth_token' => 'existing-token']);
 
    Native::test(SplashScreen::class)
        ->tap('Check session')
        ->assertRetrieved('auth_token')
        ->assertSet('token', 'existing-token');
});
 
it('clears the token on logout', function () {
    Native::fakeBridge()->withSecureStorage(['auth_token' => 'existing-token']);
 
    Native::test(AccountScreen::class)
        ->tap('Log out')
        ->assertDeleted('auth_token');
});

Helpers#

  • withSecureStorage(array $initial = []) — fake the secure keystore's contents, seeded with $initial key/value pairs. Set writes into the backing store and reports success; Get reads the current value for a key; Delete removes it — so a set → get → delete flow behaves like a real keychain.
  • assertStored(?string $key = null, ?string $value = null) — assert something was stored, or exactly $key (optionally requiring the exact $value stored under it) when given.
  • assertRetrieved(?string $key = null) — assert something was retrieved, or exactly $key when given.
  • assertDeleted(?string $key = null) — assert something was deleted, or exactly $key when given.
  • assertNothingStored() — assert no write happened.

The helpers are available on Native::fakeBridge() and chain directly off Native::test(...). They register automatically while running tests (requires a core with a macroable FakeBridge; on older cores they simply don't register).

Examples#

Store User Credentials#

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use Native\Mobile\Facades\SecureStorage;
 
public function login($email, $password)
{
    // Authenticate...
    $token = $this->authenticate($email, $password);
 
    // Store token securely
    SecureStorage::set('auth_token', $token);
    SecureStorage::set('user_email', $email);
}
 
public function logout()
{
    SecureStorage::delete('auth_token');
    SecureStorage::delete('user_email');
}

Check Stored Credentials on App Launch#

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use Native\Mobile\Facades\SecureStorage;
 
public function checkAuth()
{
    $token = SecureStorage::get('auth_token');
 
    if ($token && !empty($token['value'])) {
        // Auto-login with stored token
        return $this->loginWithToken($token['value']);
    }
 
    return redirect('/login');
}