Lines Matching full:application
24 consumers. To protect that value, the platform must offer an application
51 related to the browser or SMS application. Recommended best practices for
56 <p>Android provides an open source platform and application environment for mobile
73 <p><strong>Android Application Runtime</strong>: Android applications are most often written
78 Application Sandbox. Applications get a dedicated part of the filesystem in
95 environment supporting any third-party application. Google Play offers
107 application <a href="https://developer.android.com/guide/publishing/licensing.html">license
108 verification</a>, application security scanning, and other security services.</p>
116 <p><strong>Application Services</strong>: Frameworks that allow Android applications to use
118 up</a>) application
174 <li>Provide application isolation</li>
179 <li>Mandatory application sandbox for all applications</li>
181 <li>Application signing</li>
182 <li>Application-defined and user-granted permissions</li>
189 restricted by the Application Sandbox.</p>
197 native code is constrained by the Application Sandbox. Whether that code is
198 the result of included application behavior or a exploitation of an application
199 vulnerability, the system would prevent the rogue application from harming
227 <h2 id="the-application-sandbox">The Application Sandbox</h2>
229 means of identifying and isolating application resources. The Android system
230 assigns a unique user ID (UID) to each Android application and runs it as that user
234 <p>This sets up a kernel-level Application Sandbox. The kernel enforces security
238 limited access to the operating system. If application A tries to do something
239 malicious like read application B's data or dial the phone without permission
240 (which is a separate application), then the operating system protects against
241 this because application A does not have the appropriate user privileges. The
244 <p>Since the Application Sandbox is in the kernel, this security model extends to
246 kernel in <em>Figure 1</em>, including operating system libraries, application
247 framework, application runtime, and all applications run within the Application
250 On Android, there are no restrictions on how an application can be written that
257 the context of that particular application, with the permissions established by
259 <p>Like all security features, the Application Sandbox is not unbreakable.
260 However, to break out of the Application Sandbox in a properly configured
264 libraries, application runtime, application framework, and applications. This
271 alter or read another user's files. In the case of Android, each application
273 applications, files created by one application cannot be read or altered by
274 another application.</p>
342 application with root permissions from modifying the operating system, kernel,
343 and any other application. In general, root has full access to all
344 applications and all application data. Users that change the permissions on an
346 exposure to malicious applications and potential application flaws.
365 Encrypting data with a key stored on-device does not protect the application
369 present, but at some point the key must be provided to the application and it
413 built-in Android Email application uses the APIs to improve Exchange support.
414 Through the Email application, Exchange administrators can enforce password
424 <h1 id="android-application-security">Android Application Security</h1>
426 <p>Android provides an open source platform and application environment for mobile
432 <p>The main Android application building blocks are:</p>
439 receivers, and content providers described below) in an application. This also
447 Activities never display UIs. Typically, one of the application's Activities
448 is the entry point to an application.</p>
454 or in the context of another application's process. Other components "bind" to
466 is issued by the operating system or another application. An application may
473 <p>All applications on Android run in an Application Sandbox, described earlier in this document.
474 By default, an Android application can only access a limited range of system
475 resources. The system manages Android application access to resources that, if
482 with the per-application isolation of storage. In other instances, the
495 of the protected APIs on the device, an application must define the
497 application, the system displays a dialog to the user that indicates the
503 <p>Once granted, the permissions are applied to the application as long as it is
505 of the permissions granted to the application, and applications that are
507 permissions from the user. Permissions are removed if an application is
513 <p>In the event that an application attempts to use a protected feature which has
514 not been declared in the application's manifest, the permission failure will
515 typically result in a security exception being thrown back to the application.
517 prevent circumvention. An example of the user messaging when an application is
525 allowed to hold a permission. Details on creating and using application
536 applications have. Prior to installation of any application, the user is shown
537 a clear message about the different permissions the application is requesting.
541 application, developer, and functionality to determine whether it matches their
544 the application to other alternative applications.</p>
551 application if they feel uncomfortable.</p>
559 <p>Some platforms choose not to show any information at all about application
561 discussing application capabilities. While it is not possible for all users to
565 ask critical questions about application functionality and share their concerns
570 <td><strong>Permissions at Application Install -- Google Maps</strong></td>
571 <td><strong>Permissions of an Installed Application -- gMail</strong></td>
575 <img alt="Permissions at Application Install -- Google Maps" width=250
579 <img alt="Permissions of an Installed Application -- gMail" width=250
605 "intention" to do something. For example, if your application wants to display
616 is used to access the user's list of contacts. An application can access data
617 that other applications have exposed via a ContentProvider, and an application
641 notification if an application attempts to send SMS to a short code that uses
643 whether to allow the application to send the message or block it.
665 indication of the types of information that may be provided to the application.
666 During installation, a third-party application may request permission to
667 access these resources. If permission is granted, the application can be
671 data restricted only to the specific application. If an application chooses to
672 make the data available to other applications though IPC, the application
678 microphone or GPS. For a third-party application to access these devices, it
682 <p>If an application wants to know the user's location, the application requires a
684 prompt the user asking if the application can access the user's location. At
685 any time, if the user does not want any application to access their location,
686 then the user can run the "Settings" application, go to "Location & Security",
695 information. If an application requests access to this information at install
696 time, the installer will prompt the user asking if the application can access
697 the information. If the user does not grant access, the application will not be
699 <h2 id="application-signing">Application Signing</h2>
700 <p>Code signing allows developers to identify the author of the application and to
701 update their application without creating complicated interfaces and
702 permissions. Every application that is run on the Android platform must be
706 <p>On Google Play, application signing bridges the trust Google has with the
707 developer and the trust the developer has with their application. Developers
708 know their application is provided, unmodified to the Android device; and
709 developers can be held accountable for behavior of their application.</p>
710 <p>On Android, application signing is the first step to placing an application in
711 its Application Sandbox. The signed application certificate defines which user
712 id is associated with which application; different applications run under
713 different user IDs. Application signing ensures that one application cannot
714 access any other application except through well-defined IPC.</p>
715 <p>When an application (APK file) is installed onto an Android device, the Package
725 does not perform CA verification for application certificates.</p>
728 key while maintaining distinct UIDs and Application Sandboxes. A closer
729 relationship with a shared Application Sandbox is allowed via the
734 <h2 id="app-verification">Application Verification</h2>
736 Android 4.2 and later support application verification. Users can choose to
737 enable ?Verify Apps" and have applications evaluated by an application verifier
739 install an app that might be harmful; if an application is especially bad, it
755 application framework and runs through the Dalvik VM for standard applications.</p>
812 <p>Information for Android application developers is here:
