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Thursday, 25 June 2015

Password storage in Android M

04:00 | Posted by

While Android has received a number of security enhancements in the last few releases, the lockscreen (also know as the keyguard) and password storage have remained virtually unchanged since the 2.x days, save for adding multi-user support. Android M is finally changing this with official support for fingerprint authentication. While the code related...

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Friday, 12 June 2015

Decrypting Android M adopted storage

06:28 | Posted by

One of the new features Android M introduces is adoptable storage. This feature allows external storage devices such as SD cards or USB drives to be 'adopted' and used in the same manner as internal storage. What this means in practice is that both apps and their private data can be moved to the adopted storage device. In other words, this is another...

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Friday, 5 June 2015

Keystore redesign in Android M

04:27 | Posted by

Android M has been announced, and the first preview builds and documentation are now available. The most visible security-related change is, of course, runtime permissions, which impacts almost all applications, and may require significant app redesign in some cases. Permissions are getting more than enough coverage, so this post will look into a less...

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Thursday, 7 May 2015

Hardware-accelerated disk encryption in Android 5.1

23:06 | Posted by

In a previous post we looked at disk encryption enhancements introduced in Android 5.0. That article was written based on the Lollipop preview release, before the platform source code was available, and while the post got most of the details about hardware-backed key protection right (the official documentation has since been released), it appears...

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Wednesday, 24 December 2014

Dissecting Lollipop's Smart Lock

08:28 | Posted by

Android 5.0 (Lollipop) has been out for a while now, and most of its new features have been introduced, benchmarked, or complained about extensively. The new release also includes a number of of security enhancements, of which disk encryption has gotten probably the most media attention. Smart Lock (originally announced at Google I/O 2014), which allows...

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Thursday, 23 October 2014

Android Security Internals is out

11:08 | Posted by

Some six months after the first early access chapters were announced, my book has now officially been released. While the final ebook PDF has been available for a few weeks, you can now get all ebook formats (PDF, Mobi and ePub) directly from the publisher, No Starch Press. Print books are also ready and should start shipping tomorrow (Oct 24th)....

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