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Kiran Kuppa

Google strengthens Android security muscle with SELinux protection | Ars Technica - 0 views

arstechnica.com/...-with-nsa-developed-protection

android security

shared by Kiran Kuppa on 25 Jul 13 - No Cached
  • Kiran Kuppa on 25 Jul 13
     
    The other big security enhancement introduced in Android 4.3 is a more robust way to store cryptographic credentials used to access sensitive information and resources. This means changes to the Android KeyChain, which stores digital certificates used to access Wi-Fi networks and virtual private networks used by large corporations and government agencies. With the keychain enhancements, the system-wide keys are bound to a hardware-based root of trust process devices that support this.The phone needs to have a secure element such as a Trusted Platform Module so that private keys can't be stolen even if the phone is rooted and the attacker has full access to the operating system. Phones that don't have this hardware capability will fall back to software protections for securing credentials.Enhancements to the Android Keystore, a similar resource that also stores credentials, allows users to create keys that can be accessed and used exclusively by a single application. Under version 4.3, "apps can create or store private keys that cannot be seen or used by other apps and can be added to the keystore without any user interaction A third enhancement is Android's ability to create secondary user profiles that implement fine-grained restrictions.
Vincent Tsao

Android Dev Phone, Ubuntu and VMWare Server : Johan de Koning - 0 views

www.johandekoning.nl/...phone-ubuntu-and-vmware-server

ubuntu VMWare android

shared by Vincent Tsao on 14 Sep 10 - No Cached
  • Create a new file (as root) sudo gedit /etc/udev/rules.d/50-android.rules with the following content SUBSYSTEM=="usb", SYSFS{idVendor}=="0bb4", MODE="0666" Make sure that the text after {idVendor} is the same as the device id found when using the lsusb command. Save and exit the editor To make execution of the rule possible, perform a chmod sudo chmod a+rx /etc/udev/rules.d/50-android.rules To make the rule active, restart udev sudo /etc/init.d/udev restart
  • You can perform a check, to see that the Android Dev Phone is shared with Ubuntu, by opening a Terminal (inside Ubuntu. Open a VMWare Remote Console to make use of the Ubuntu) and type the following command lsusb A list of USB devices will be shown. For example: Bus 002 Device 001: ID ld6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 004: ID 0bb4:0c02 High Tech Computer Corp. Bus 001 Device 001: ID ld6b:0002 Linux Foundation 2.0 root hub
Simon Pan

Application Fundamentals | Android Developers - 0 views

developer.android.com/...fundamentals.html

shared by Simon Pan on 03 Sep 10 - No Cached
  • passes
  • When onReceive() returns
  • by the system at any time
  • ...13 more annotations...
  • to start a service
  • presents
  • memory paging state
  • Broadcast receiver lifecycle
  • The activity at the top of the stack is one that's currently running
  • The root activity in the stack is the one that began the task
  • Suppose
  • keeping both activities in the same task.
  • Tasks
  • A task is a stack of activities, not a class or an element in the manifest file.
  • The current task goes into the background and the root activity for the new task is displayed.
  • Rather
  • the previous activity in the same task is displayed.
Vincent Tsao

[Android] Defining custom attrs - Stack Overflow - 0 views

stackoverflow.com/...android-defining-custom-attrs

android attrs

shared by Vincent Tsao on 14 Feb 11 - No Cached
  • You can define attributes in the top <resources> element or inside of a <declare-styleable> element. If I'm going to use an attr in more than one place I put it in the root element. Note, all attributes share the same global namespace. That means that even if you create a new attribute inside of a <declare-styleable> element it can be used outside of it and you cannot create another attribute with the same name of a different type.
  • An <attr> element has two xml attributes name and format. name lets you call it something and this is how you end up referring to it in code, e.g., R.attr.my_attribute. The format attribute can have different values depending on the 'type' of attribute you want. reference - if it references another resource id (e.g, "@color/my_color", "@layout/my_layout") color boolean dimension float integer string fraction enum - normally implicitly defined flag - normally implicitly defined You can set the format to multiple types by using |, e.g., format="reference|color".
    • Vincent Tsao
      Vincent Tsao on 14 Feb 11
       
      了然~
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