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24

There should have been a warning when you begin the encryption that you had to agree to. The only way to unencrypt it is to perform a factory reset, thereby wiping your data partition completely.


15

The Broadcom bcm4329 chipset in a lot of android phones (Nexus One, Evo, G1) probably many more) supports monitor/promiscuous mode. The driver needs to be modified to allow monitor mode to be enabled. Here is the source of the current drivers: monitor mode flag method to that sets the mode In the second link, you can see that monitor mode flag is not ...


12

There is nothing available. While it is theoretically possible with the hardware, in practice it would be very difficult to implement and would probably need a custom ROM that supported it. Even the tools for doing this on a desktop (Aircrack, etc.) generally require specific wireless chipsets and drivers to do wireless packet capture. EDIT: There's now a ...


12

Yes, custom recovery works with encrypted honeycomb device. The built-in encryption doesn't touch ROM & firmware at all. It just encrypts accounts, settings, downloaded apps & their data etc. which can be located on phone memory, internal SD or external SD. That's why encryption is no longer present after factory reset because there's no encrypted ...


11

Note: answering my own question as nobody knew. I did a packet capture after selecting Menu -> Accounts & Sync -> Auto-sync (also accessible via the "Power Control" widget). What did I discover? To my horror (http requests from phone displayed below): GET /proxy/calendar/feeds/myaccount%40gmail.com HTTP/1.1 Accept-Encoding: gzip Authorization: ...


11

On my encrypted Nexus S I use a temporary tmpfs mount on /sdcard in CWM. It has enough RAM to hold the new ROM in memory during the update: Download your ROM to /tmp/update.zip and boot into recovery. Then log in via 'adb shell': ## on the host machine do: me@workstation:/tmp$ adb shell ## now on the device in 'adb shell' mode... ~ # mount -t tmpfs none ...


10

A lot of people are asking that question. Here's one. Some people are offering bounties. Like at XDA-Developers. Some people have suggested alternatives. AxCrypt looks like an alternative, and there's an alpha product that works with it (and Dropbox) called BoxCryptor. But I've not found an actual port of Truecrypt to Android, nor any information about ...


9

The current encryption scheme is outlined on the Android website's "Notes on the implementation of encryption in Android 3.0" page. From that page, the specific algorithm used is noted as such: The actual encryption used for the filesystem for first release is 128 AES with CBC and ESSIV:SHA256 That's the only official documentation I've seen for it ...


8

Yes with an app called redphone: http://www.appbrain.com/app/redphone-beta/org.thoughtcrime.redphone


8

In Honeycomb the option is in Settings -> Location and security. In Ice Cream Sandwich it's at Settings -> Personal -> Security -> Encryption. If you're wondering about how Android does encryption, take a look at this: http://source.android.com/tech/encryption/android_crypto_implementation.html Naturally encrypting and decrypting requires some ...


8

Yes, 3G traffic will go through your VPN if it's set up correctly. Whether or not your service provider supports that is another matter; some block VPN traffic (such as Verizon - see this thread).


7

I'm using Samsung Galaxy Note Android 4.0.3. and I've tried Encrypting and Decrypting several times successfully.


7

There are many available choices, depending on the features you need: Cryptonite uses EncFS and requires root LUKS also requires root and provides on-the-fly encryption (AES by default) to virtual folders Eds provides encrypted containers and does not require root. It even is compatible to TrueCrypt. DroidCrypt can encrypt single files or full directories. ...


6

As far as I know, this is simply a bug in the HTC email application. You can try using a different client (K9 supports signed messages, I believe), but beyond that you'll have to take it up with HTC and hope that they decide to fix it at some point. Here's a related XDA thread where someone includes what he says is a response from HTC regarding the issue. ...


6

Encryption is a fairly CPU intensive process, so using more battery is not unexpected. Though it depends a lot upon the apps you use and how much they read/write to the storage. I would expect that an 'idle' Xoom with encryption would last just as long as one without, but if you use an app that does lots of little writes to disk, it will end up using more ...


6

Reposting answer for future people! Naturally, I figured it out 10 minutes after posting. Can't answer for another few hours because I'm a new user. Under the security section of the settings, there is a Device Administrator page. I deactivated the "Email" app as an admin. It warned that it would delete all my mail and stuff and I accepted. No factory ...


6

Android provides the capability to do filesystem encryption, but it's up to the vendor who builds the firmware for your device to enable it for the SD card. I have only seen a few devices with this capability enabled for the SD card, though most seem to have it for the internal storage (/data). Typically if it's enabled, there will be a menu item in the ...


5

You mean like WhisperCore? Quoting from it's site: By default, WhisperCore encrypts your entire data partition at the device level, and can optionally be enabled for your phone's SD card as well. WhisperCore also includes smudge-resistant screen unlock patterns. Unfortunately it only currently runs on the Nexus handsets.


5

It seems to be a general problem. I was trying this on my Asus Eee Pad with physical keyboard which actually allows to minimize the "encryption process" and go to settings. However checking running processes doesn't show any activity that would suggest that something is actually happening.


5

I know nothing about Android development, so keep that in mind. Following various instructions online, however, I was able to build the source and put it on my phone. Perhaps someone who knows what they’re doing can come along and explain how it really should be done. Until then… Install and configure the Android SDK. Make sure you add the SDK tools to ...


5

Goggle Drive gives you some security options regarding your documents: You can choose to encrypt all offline documents (that is, documents stored on your device); And can also choose to decrypt documents incrementally as they are streamed to your phone, by selecting the Streaming Decryption, thus having just a small portion of the document decrypted when ...


5

Encryption is done on the /data partition (where all app-data is stored). However, /sdcard is sometimes encrypted too (if the sdcard is actually internal memory of the phone i.e. not removable). If the sdcard is also encrypted,then you will be unable to flash ROM's from within Recovery (recovery can't read encrypted sdcard).


4

Results captured on an LG Optimus V (VM670), Android 2.2.1, stock, rooted, purchased in March 2011. As of today, the only unencrypted requests I could find in a pcap taken during a complete resync were: Picasa Web Albums GET /data/feed/api/user/<username>?imgmax=1024&max-results=1000&thumbsize=144u,1024u ...


4

Android 3 (Honeycomb) offers full system encryption natively. However, as it's only for tablets at this point I will post some other avenues. There was some work done on this for the G1 using LUKS and Cryptsetup. I think I've seen this on a moto droid rom too, but you'll definitely need root. It is not trivial to do, and there isn't too much interest so ...


4

The samsung galaxy S has the ability to support a non standard filesystems. Hacking a filesystem together with encryption should be possible but probably takes a lot of time and as far as I know isnt available off the shelf atm.


4

The setting that you're talking about is in effect the --redirect-gateway option of OpenVPN and is documented on the OpenVPN man page --redirect-gateway Automatically execute routing commands to cause all outgoing IP traffic to be redirected over the VPN. This option performs three steps: Create a static route for the --remote ...


4

Encryption of saved data (the data on flash storage) is a feature of Android 4.0 and higher. The only non-4.0-device I am aware of that allows full flash storage encryption is the Lenovo Thinkpad Tablet. Encryption of connection data (data that goes over the wire) was a big security concern in some Android versions. Google has released some updated versions ...


4

What you want is Zfone on Android. It is currently not native available, but there is a bug report on the offical Android tracker asking for it. Star it, but don't leave a comment without content. This is the best chance to raise Googles attentions on this. Whats currently possible on Android is good described by the guardian project in this blog post. BTW: ...


4

I sent this question into Verizon Wireless as well. Here is their reply: Thank you for contacting Verizon Wireless through our website...I understand that you've been having an issue trying to decrypt files on your handset. At this time Motorola hasn't provided an update for your phone to be able to do this. Without that, we're unable to ...



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