Encryption is the process of transforming information to make it unreadable to anyone except those possessing special knowledge.

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33
votes
3answers
2k views

Encrypt the phone's internal storage

Is there a way to encrypt my phone's internal memory, in the same way you would encrypt a computer's partition? Ideally, the phone would always ask for the password when booting, and even if someone ...
22
votes
2answers
5k views

Undo Android 4.0 (aka Ice Cream Sandwich) Full Disk Encryption

Just upgraded my Nexus S to Android 4 aka Ice Cream Sandwich. Was looking through all the new features, and decided to enable encryption, which worked (and is working) just fine. Now I'm wondering if ...
21
votes
4answers
3k views

Automatically connect to Wi-Fi nodes, but route everything through encryption

Related to my question about VPNs, is there any way to get my phone to automatically connect to unencrypted access points, but route all my traffic through my home network? This would be kind of like ...
20
votes
3answers
16k views

Will a Custom Recovery work with an encrypted device?

I wanted to know whether using Android's built-in encryption (introduced in 3.0) would affect my ability to use a custom recovery (Clockwork Mod in my case). More specifically if I will still be able ...
20
votes
2answers
3k views

What is the Streaming Decryption setting in Google Drive?

I notice a "Streaming Decryption" option under Encryption Settings. For me, it was not selected by default. The description under this setting is a little unclear: Decrypt documents into a stream ...
19
votes
2answers
4k views

What Android sync'd data is encrypted?

With the release of the firesheep plug-in for firefox it has become trivial for website browsing on open Wi-Fi networks to be hijacked by 3rd party listeners. Android offers the convenient auto-sync ...
18
votes
4answers
1k views

Ice Cream Sandwich (ICS) - Encryption, select different PIN than Screen Lock

I was wondering if one can select different passwords for device encryption in ICS? Having the same password for encryption and unlocking the screen isn't quite that secure... Thanks for hints.
16
votes
6answers
4k views

How do I secure/encrypt SD card data transparent to apps?

Are there any off-the-shelf options for securing the contents of an SD card so that files written by apps writing to SD are encrypted? If so, what is the best option? I'm looking for something for ...
15
votes
6answers
3k views

Is it reasonably safe to use PIN code for encryption?

On the Android 4.0 (Samsung Galaxy Nexus) there is a posibilty to encrypt the phone. I found this about the encryption on Android 3.0, is the same algorithms used in Android 4? ...
12
votes
4answers
21k views

Is there any WEP cracking application available for android?

Is there any WEP cracking application available for android? If not is WEP cracking technically possible with the API's and hardware available on your average android phone? This is a purely ...
12
votes
2answers
5k views

Is there a way to route all traffic from Android through a proxy/tunnel to my Tomato router?

I'd like to be able to connect my Android phone to public Wi-Fi points (some with unencrypted connections), but: People can see what I'm doing by intercepting unencrypted radio transmissions The AP ...
11
votes
2answers
875 views

Which disk encryption standard is used in Honeycomb?

Does anyone posses an official or un-official information on which encryption standard is used in Honeycomb "encrypt tablet" option? Is there an information on any hacks or backdoors, placed for law ...
11
votes
2answers
6k views

If I set up a VPN, does *everything* go over it?

If I set up a VPN connection for Android, what gets routed over the VPN? Just web browsing? All internet connections from all apps? In Cyanogenmod, in the Add OpenVPN config, "Advanced" settings, ...
10
votes
2answers
4k views

Truecrypt on Android 2.2?

Has Truecrypt been ported over to Android yet? If yes, where can I get it from as I can't seem to find it in the Market unless it's named something different. If no, is anyone developing it? If no ...
9
votes
2answers
8k views

Does Android's Full Filesystem Encryption also Encrypt the SDcard?

In Android's filesystem encryption do they also encrypt the SDcard? If so Is encrypting the SDcard optional or is it encrypted by default when you choose to encrypt your device? Here's some info ...
9
votes
1answer
1k views

Encrypt Tablet in Android 3.1 hangs indefinitely

I've recently gotten an Asus EEE Pad Transformer (my first Android device) and I love it. I've updated it to 3.1 right away. I tried to enable the "Encrypt tablet" option. After following the ...
8
votes
1answer
278 views

Will using a vpn also encrypt my 3G traffic?

Just wondering, because I've just set my phone up to forward wifi traffic through my DD-WRT router. But I've no way to verify if my 3G traffic is also going through my router. Does anyone know if 3G ...
8
votes
1answer
9k views

Turning on encryption for an Android 4.0 device

I need to encrypt my full file system on Android device. From this link, I understand that Android provides support to enable full file system encryption based on a password but that need to be ...
8
votes
4answers
855 views

How can I access data (such as WiFi keys) in an encrypted Titanium backup?

How can I decrypt an encrypted "Titanium Backup" backup using standard (linux) tools? Example: Wi-Fi serves as a practical example, many other uses may apply to the solution I'm looking for. If I ...
8
votes
5answers
2k views

Use custom lock screen on encrypted Jelly Bean device

I recently enabled encryption on my Nexus S running Android 4.1.1. I'm aware of all the benefits and drawbacks, and device encryption is definitely something I want. It's currently working fine. ...
8
votes
1answer
1k views

Full encryption with Android?

I have an LG GT540 Optimus with Android. How can I encrypt all my filesystems to ensure that if it gets stolen, no one will get my passwords, contacts, etc.. :\ ? Thank you!
7
votes
3answers
556 views

Call Encryption

Is it possible to encrypt calls on Android OS? How do I do that?
7
votes
1answer
268 views

How do I cancel a half completed email configuration?

Phone is trapped trying to encrypt my device against my wishes. On my Nexus S I was recently upgraded to 4.0.4 and decided to try adding my work email to my personal phone. This previously didn't ...
7
votes
2answers
2k views

If I encrypt my phone will I still be able to load custom ROMs?

Are there any issues with enabling full encryption and loading custom ROMs or will it be seamless?
7
votes
1answer
477 views

Performance impact of device encryption

As far as I know, most or all Android devices don't have any hardware cryptography accelerators, so the block-level storage encryption happens on the CPU. How high is the impact of encrypting and ...
7
votes
2answers
1k views

Do I have to backup Titanium Backup's keys?

I just bought Titanium Backup and set up a scheduled encrypted backup of user+system apps and data, followed by Dropbox sync. Assuming I remember the passphrase, is all the data required for ...
6
votes
2answers
2k views

Does encrypting the Xoom tablet use battery faster?

I recently decided to encrypt my Xoom tablet. The process went smoothly (full power, plugged in the whole time, took about an hour) but since the encryption, it seems like my battery life has ...
6
votes
2answers
2k views

OpenVPN with Android 2.3.x - security concerns

I need to use my Android 2.3.x phone to access an OpenVPN server. I have CM 7 with built in support for OpenVPN and tun. My main concern is that I don't know where to put the keys in. If my phone gets ...
5
votes
2answers
319 views

In general, do Android apps use encrypted connections? If so, is public WiFi safer?

I know that connecting to public WiFi carries risks. I know that much of the risk has to do with sending data over a public connection, allowing it to be intercepted. So, my question is, do most ...
5
votes
1answer
2k views

How can I build the TextSecure app from source code?

Unless I’m mistaken, the TextSecure app (which provides encrypted text messaging—both over the wire and on disk) was pulled from the market a while back, leaving no way to install the app is readily ...
5
votes
1answer
9k views

LogMeIn Hamachi VPN

How do I connect my Android phone or tablet to a LogMeIn Hamachi VPN? Is it even possible? LogMeIn has command line clients for Linux, and of course Android has built-in VPN settings. Is there some ...
5
votes
2answers
987 views

Encryption of offline mail, calendar, contacts data on Android

I'm very new to Android and I wonder what I can do in terms of encryption. As I read it seems that only Android >= 2.3.3 supports encryption but my new device will be running Android 2.3.1. So I ...
5
votes
1answer
3k views

How can I decrypt an encrypted SD card (HTC Evo 4G) on a different device?

I encrypted both my phone and SD card upon purchasing my HTC Evo 4g LTE. Recently the phone died (would get to the login screen and then reboot). After a factory reset the SD card shows up as ...
5
votes
3answers
27k views

How do I decrypt files on my SD card that I encrypted using the Settings?

I have files that I used to copy from my SD card to my PC using the USB Mass Storage option under the "USB connection" pop-up. I checked the flag under Settings->Location & Security->Data ...
5
votes
1answer
975 views

Stuck in Encryption Mode

I have an Android 4.0.1 10" tablet. I started encryption last night around 5:30pm. It is now 7:40 am the following morning and I still see the "green" Android icon on the screen. I had just bought the ...
4
votes
6answers
3k views

Device encryption fails, but no error

I am trying to encrypt my android device (Samsung S3, Modified 4.1.2). I have set a password and made sure my device is plugged in and charged over 80%. When I select the encryption option, the ...
4
votes
1answer
163 views

Is there a way to control app execution environment?

Is there some way of controlling how an installed application communicates over the network and writes data to disk? Let's say I have an application that will handle sensitive data, but it comes from ...
4
votes
1answer
233 views

Backing up Android device on Windows via wireless

I need a way to back up my whole Android device on my PC, which is running Windows 7. I don't have USB cable for my phone, but I have wireless router, so my best option is using Wireless connection. ...
4
votes
3answers
16k views

SD card will not format within Android therefore cannot mount. Works fine on laptop

I bought a 64GB SD card for my Galaxy S3, and it worked perfectly. Today I turned on device encryption (worked fine) then I turned on SD card encryption. Since then I am stuck with the phone reporting ...
4
votes
2answers
347 views

Droid RAZR MAXX encryption downgrades max camera resolution

After submitting my DROID RAZR MAXX to the whims of my company's OLA for getting access to work mail, calendar, and contacts, it was encrypted, including the storage. Encryption notified me, before ...
4
votes
1answer
504 views

Motorola DroidX eCryptfs related Sources?

I see over in this question that the Motorola DroidX uses eCryptfs to do its data encryption. I'm trying to find the source code of the mount.ecryptfs that version of Android uses (as I am one of the ...
4
votes
2answers
916 views

Will encrypting my Droid X2's SD card make me lose the ability to view files on it from my PC?

I recently purchased my first smartphone, a Droid X2. I was listening to the radio and heard security advice about protecting data on smartphones. It specifically said you should install antivirus ...
4
votes
1answer
385 views

SIM Card not detected after encrypting device

I have a Samsung Galaxy Pocket Neo (Model GT-S5310B) running Android 4.1.2 The device is not rooted and the update notifier tells me I have the latest available version installed. Today I tried ...
4
votes
0answers
755 views

Is full device encryption possible on LG Optimus L5 II (LG-E460)?

After starting the encryption process from within the Device Policy Manager for Google Apps the device will reboot, and immediately get stuck on the boot loader while happily displaying the LG logo ...
4
votes
2answers
6k views

How do I decrypt files on SD card that I encrypted on a different device? [duplicate]

I encrypted my phone and SD card on my Note 2. I broke that phone, but recovered the SD card. How do I decrypt the SD card to get all files out (I do have password for it) with the new phone?
4
votes
0answers
2k views

How to do backups and updates properly with full device encryption?

I think about the following use cases: 'Perfectly' reverse encryption without losing settings Update ROMs. Even if /system, /data, /sdcard (internal) are encrypted Low level Backups with CWM. When ...
3
votes
2answers
6k views

Creating and handling an encrypted folder on sd-card for unrooted devices

I'm looking for a way to create an encrypted folder on the sd-card and provide password protected access to its contents. Ideally, this would provide a UI to encrypt new files by moving files to it ...
3
votes
2answers
2k views

Encrypting SMS and calls

Is it possible to encrypt calls and SMS messages between two Android phones (or even from android to iPhone)? This firm delivered a beta on Android Market before: http://www.whispersys.com/
3
votes
2answers
848 views

Are there any known rom(s) with full device encryption incorporated? [duplicate]

Possible Duplicate: Where can I find stock or custom ROMs for my Android device? Are there any recommendable known rom(s) with full device/disk encryption incorporated? Device specs: ...
3
votes
2answers
21k views

Ways to remove android device encryption

Since I still encounter issues with modified boot images and recovery images I want to remove the device encryption from my Nexus 4 (running 4.3). I known that there is no "official" way to to this ...