Hello,

The encryption process only encrypts /data, no other storage locations AFAIK.

The other questions you ask are explained in the "Android disk encryption implementation" part of this blog post:

http://nelenkov.blogspot.com.es/2012/08/changing-androids-disk-encryption.html

Cheers,

Pau Oliva

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On 08/02/2012 04:32 PM, seattleandrew wrote:
If anyone can even point me to a resource that would maybe answer any of
these questions I'd appreciate it. There's just a lot of details in the
encryption protocol for ICS/JB that I don't know nor have found anything on.

On Tuesday, July 24, 2012 9:47:06 AM UTC-7, seattleandrew wrote:

    I’ve been looking over the documentation at
    http://source.android.com/tech/encryption/android_crypto_implementation.html
    
<http://source.android.com/tech/encryption/android_crypto_implementation.html>
    trying to find specific information on the encryption process, I
    would really appreciate it if anyone knew the answer to any of the
    following questions:

    ·As of Android 4.0+ is the encryption for both the file system *and*
    master key still 128 AES or have both upgraded to 256 AES?

    ·Does the encryption process only make a single pass or does it make
    multiple passes?

    ·If multiple, how many passes?

    ·For devices with internal storage will the process /only /encrypt
    “/data”, or will it encrypt other storage locations such as
    “/mnt/sdcard”?

    I realize the last question changes based off of device
    manufacturer’s settings but I want to know what Android default
    behavior is.

    In any case, I really appreciate you taking the time to read this
    and I’d be grateful for any answers or documentation you could provide.

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