src/tech/index.md

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# Android Technical Information #
Welcome to the Android technical documentation section of the site. Here you
can find technical information useful to people and organizations who are
looking to modify, contribute to, or port the Android software. This is "under
the hood" information intended for engineers.

## Dalvik Technical Information ##
The Dalvik Virtual Machine is the heart of Android. It's a fast, just-in-time
compiled, optimized bytecode virtual machine. Android applications are
compiled to Dalvik bytecode and run on the Dalvik VM. This section includes
detailed information such as the Dalvik bytecode format specification,
design information on the VM itself, and so on.

[&raquo; Dalvik Information](/tech/dalvik/index.html)


## Encryption Technical Information ##
The Android Open-Source Project includes the ability to encrypt the user's data.
This document is written for 3rd parties developing Android devices who want to
include support for encryption on their device.  It covers the few things that
must be done so encryption will work.

[&raquo; Encryption Information](/tech/encryption/index.html)

##Security Technical Information ##
Android provides a robust multi-layered security architecture that provides the
flexibility required for an open platform, while providing protection for all
users of the platform. This document focuses on the security features of the
core Android platform.

[&raquo; Android Security Overview](/tech/security/index.html)