Date Added: Nov 2010
The security of smart phones is increasingly important due to their rapid popularity. Mobile computing on smart phones introduces many new characteristics such as personalization, mobility, pay-for-service and limited resources. These features require additional privacy protection and resource usage constraints in addition to the security and privacy concerns on traditional computers. As one of the leading open source mobile platform, Android is also facing security challenges from the mobile environment. Although many security measures have been applied in Android, the existing security mechanism is coarse-grained and does not take into account the context information, which is of particular interest because of the mobility and personality of a smart phone device.