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

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5
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1answer
868 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
1answer
1k views

NANDroid backup/restore of CM11 encrypted device after wipe

is it possible to restore a NANDroid backup of a encrypted device running CyanogeMod 11 (KitKat 4.4.2) after performing "Format Data" in TWRP recovery (this function wipes the encrypted partitions)? ...
3
votes
1answer
35 views

How do I recover lost data on a damaged SD card that was encrypted by my tablet?

I encrypted my 64 GB SD card using my Samsung Galaxy tab 3. I don't know what happened to my SD card but when I turn on the tablet, instead of allowing me to use the card, I get the following ...
3
votes
1answer
1k views

WiFi stopped working (dhcpd times out) after enabling device encryption

WiFi has worked without issue before on this exact same hotspot, and it is currently working for other devices so I'm assuming the error is in the phone (edit: also tried another hotspot, wifi is ...
3
votes
1answer
452 views

Android disk encryption - using as a removable device

I'm about to upgrade my Desire HD to ICS so that I can use the full disk encryption functionality. Does anyone know if its possible to still use the device as a removable disk when plugged in via a ...
2
votes
1answer
132 views

What is Marshmallow encryption protecting?

I installed CM 13.0 onto a Nexus 6, which includes Android 6.0.1, and I have set a PIN. The Settings UI reports that my phone is encrypted. However, my phone is able to boot all the way to the lock ...
2
votes
1answer
180 views

How do I keep my email and passwords secure without full-device encryption?

I bought a cheap, no-name Android 4.1.1 tablet a while back, and was dismayed to find that the "Encrypt Data" option was simply not present in the "Settings" -> "Security" menu. I then upgraded to a ...
1
vote
1answer
154 views

Decrypt SD card on a phone with a broken screen

I have a Glaxay S4 and I know the password to decrypt the card, and the phone's memory... but the screen is broken and doesn't display anything. Otherwise, the phone is fine. It's my understanding ...
1
vote
1answer
180 views

Time needed for full device encryption on Android L with 128GB microSD Card

So last night I decided to enable full device encryption on my Android L device (Sony Z3 compact running CM12). Right as I started I realized I had forgotten to unmount and eject the microSD card. I ...
1
vote
1answer
368 views

How to encrypt an external SD card natively?

There are several questions regarding the possibility to encrypt an external SD card on Android. None of them are satisfactory. They either point to a third party solution (e.g. BoxCryptor, ...
1
vote
1answer
118 views

alternative to android build in encryption?

I have got a Samsung S3 that forces me to use a 6-charakter password for the phone/SD card encryption. I would like to use a PIN (4-digits) as it was possible in earlier Samsung phones. I am aware of ...
1
vote
1answer
951 views

Longer disk-encryption passwords on Samsung Galaxy S5?

I'm trying to encrypt my Samsung Galaxy S5 (AT&T) and it only allows me to use a 16-character passphrase for my encryption key. Is there a way to bypass this or change the encryption key to ...
1
vote
1answer
840 views

Android Encryption porting

I'm currently trying to enable the full disk encryption in Android on my custom board. Some informations: The /data Partition is the 4th Partition on my SD Card. after the /data Partition there is ...
1
vote
1answer
286 views

Cannot perform OTA update on encrpyted Nexus 4

I encrypted my phone because of an Exchange policy with my employer. However, to apply the OTA update, I must decrypt. But the encryption option is greyed out at Settings. I tried removing my Mail ...
1
vote
1answer
504 views

Using luks manager app for creating file based containers for encryption, is there any chance that unencrypted data appears in crash dumps etc?

My PC is fully encrypted and protected with TrueCrypt using. I don't use TrueCrypt encrypted file based containers as they are not safe from the OS itself. The official TrueCrypt site states that file ...
1
vote
1answer
534 views

Does the lock screen on a encrypted device provide different security than an unencrypted device?

I am wanting to encrypt my phone and sd card. I have been reading around about it all week and still don't understand a few things. I though that the encryption was like blackberry encryption, where ...
0
votes
1answer
55 views

CM12.1 on Galaxy S5 in endless boot after encryption enabled, then pattern changed

As written in the title, I have a Galaxy S5 (SM-G900F) with CyanogenMod 12.1 installed ("klte"). Everything worked semifine (apart from occasional reboots), and after a while I decided to encrypt the ...
0
votes
1answer
336 views

Decrypt crypt7 without key (phone was factory reset)

I have my whatsapp backup db in crypt7 format. I forgot to backup the crypt key. Now I want to decrypt the crypt7 file but not sure what to do. I have my device with me on which the file was ...
0
votes
1answer
33 views

Chromium: Option to save passwords and change encryption greyed out

I am using Chromium build 353428 on PacROM 5.1. After signing in with my Google account, I tried to set a separate sync passphrase (using instructions given here). However, when I click on my account ...
0
votes
1answer
70 views

Is there cryptsetup android binary

One thing I badly need on android is support for opening Luks volumes. Is there a cryptsetup / cryptfs binary so, I can execute it from terminal on a rooted phone to mount luks volumes. Please donot ...
0
votes
1answer
97 views

What does “encrypt all outgoing email” really mean?

I have a Samsung Galaxy Stardust with Android 4.3. In the email app, under security options, there is an option that says "encrypt all outgoing email". But my understanding of S/MIME is that in ...
0
votes
1answer
171 views

How can I decrypt my photographs on the SD card?

My Samsung Galaxy S3 crashed suddenly and I had to take my SD card out to fix it. After I got it back and put my SD card into it, I realized that the data which was encrypted on my SD card (photos ...
1
vote
0answers
901 views

Can I install a micro-SD card into my Note 2 after I've enabled device encryption?

I recently got a Note 2 and enabled device encryption. I want to put a micro-SD in it now to expand my storage capacity, but when I go to settings, it won't let me mount the card. Is it because of the ...
1
vote
0answers
526 views

Corporate Email account on Cyanogenmod 7 - Encryption required

Has anyone got a corporate email account working with a server that requires Encryption. I'm using a Wildfire with CM 7 and get the error "This server requires features your Android device does not ...
1
vote
0answers
162 views

Where are the hidden videos and pictures from Camfiler's VS and/or PS apps?

In Camfiler's PS and VS programs where are my hidden videos and pictures on my SD card for when I back up my card to my computer?
0
votes
0answers
24 views

SD card encryption

The way Android goes about encrypting data on SD cards is vague to me. I've read about ASEC files, OBB files, /data/misc/systemkeys/AppsOnSD.sks, and keystores. I know that keys used to encrypt SD ...
0
votes
0answers
58 views

Is my Xiaomi Redmi Note 2 encrypted or not?

I have a Xiaomi Redmi Note 2 running MIUI 7.1.2.0 (latest OTA update, based on Android 5). I encrypted it. Then I restored to factory settings, first from the Android menu then from the recovery menu ...
0
votes
0answers
39 views

Mirroring screen without booted phone

I'm a little paranoid about security. So I've encrypted my sd card and my whole phone with the android 4.2.2 encryption option. When I boot the phone it asks me for a (looong) password to decrypt the ...
0
votes
0answers
32 views

AccountManager: how can passwords be stored and retrieved without also storing the decrypt key?

Can the Android AccountManager be hacked and its account passwords retrieved? I mean, how is the decrypt key stored in a way that is safe from being retrieved by password-spoofing software? Is special ...
0
votes
0answers
101 views

Android 4.4.4 lenovo a6000 plus. Apps Not working post encryption

I encrypted my lenovo a6000 plus (with android 4.4.4). Most of the apps (the ones which were installed by me from play store and not pre-installed) are not operating now showing the following error: * ...
0
votes
0answers
127 views

How do I encrypt entire device using ADB only? (4.4.2)

I have a coolpad arise and want to do whole device encryption, the settings way of encrypting does not work and the company has yet to get back to me with anything other than to go to settings, blah ...
0
votes
0answers
61 views

How do I swap my encrypted SD card for a larger SD card without losing apps and data?

I bought a larger SD card for my phone that I would like to use. The instructions from this SE post explain that the process is as easy as using an SD card reader to copy all files over from the old ...
0
votes
0answers
60 views

Samsung T-805 encryption problem

I'm trying to encrypt the SD card on my Samsung Galaxy Tab S SM-T805 which has Android 5.0.2 onboard (also rooted). I keep getting the error: 'Error encrypting SD card. Unable to mount SD card. To ...
0
votes
0answers
68 views

Xperia E4 - no sim card after encrypting SD card

I have a major problem with my Xperia E4, it doesn't read SIM anymore. I believe it was caused by SD encryption. A few months ago I encrypted my phone, I didn't have SD card at the time. Everything ...
0
votes
0answers
23 views

Full encryption of a singe purpose device (e.g barcode scanner )

How could we run a single purpose device with high sensitive date on Android 4.4 or later, with full disk encryption and have it unencrypted and unlocked only after entering the device password only ...
0
votes
0answers
51 views

Android encryption and Native Library Storage Locations

I have written an app that uses a native shared library via the android NDK When that app is installed on the phone where does the .so file get stored? Also, is there only one or multiple copies of ...
0
votes
0answers
43 views

How to enable password entry for encrypted lollipop but disable built in screen locker at the same time?

I want this because I want to use a strong password to protect my device at boot time, but protect the screen with one time passwords when it is already turned on.
0
votes
0answers
42 views

how to see links of all downloading sources

As an example, there is app which download something program,pdf,video,document or etc. But, the downloaded files are not in sdcard. And when the program download it is encrypted by the program just ...
0
votes
0answers
202 views

permanently decrypt my android

I have encrypted my android. I now have these problems: I want to switch on and login: The system boots, I the primary user, type my password, the system boots, I type my password (This is a pain). ...
0
votes
0answers
82 views

What is encrypted in Android operating system?

When the Android OS encryption is activated, I read that only /data (user data) is encrypted and not all the storage. Is this correct? Can we encrypt all the storage if it's the case? I take the ...
0
votes
0answers
47 views

Can I generate the GPG key inside R2Mail2?

I just installed R2Mail2 and it seems to work fine so far, but I didn't understand the key generation procedure at the beginning. What is this key for? Is this already a new GPG key-pair I can use? ...
0
votes
0answers
247 views

Android 5.1 encryption password gone after changing back to pattern

I've encrypted my phone (Android 5.1) after setting up a password, and it worked fine. Because I don't want to use a password for the normal screen unlock, I've changed it back to pattern. But now ...
0
votes
0answers
167 views

How to encrypt external sd card under KitKat?

I am going tp buy a device with external SD card and I am wondering if any custom roms support ecnrypting external sd cards. I will root and use a custom rom. Basically I want to be able to encrypt ...
0
votes
0answers
75 views

Security of Android cryptography in versions < 5.0 against government agencies

Recently, both Google and Apple announced their new OSes encrypt the device by default. This caused a lot of complaints from government agencies. Let me quote an article ...
0
votes
0answers
118 views

How to obtain crypto header and footer from Nexus 5 Android 4.4

I'm interested in how to find the crypto_header and crypto_footer for disk encryption on a Nexus 5. A lot of articles have them for specific devices and I was wondering if there was any information on ...
0
votes
0answers
165 views

Recovering data from broken android phone which is sent for replacement

Sent broken android phone to Sony customer care for replacement. I had the device encrypted with a 4 digit numeric pin. I erased it. I found when searching on Google that data can be recovered easily ...
0
votes
0answers
109 views

How to boot an encrypted S2 after Wipe without being asked for the encryption password which is no longer accepted?

On my encrypted S2, I started to install CM following these instructions. Rooting the phone worked fine. But after I wiped it from the Volume-up/home/power-key console, I was not able to locate the ...
0
votes
0answers
3k views

Samsung Galaxy encryption failed

I updated my GT-19100 Phone to 4.1.2 Jelly Bean from the previous version. For this venture it was necessary to decrypt my phone first. After the update I started again an encryption. The process ...
-1
votes
0answers
28 views

How to Decrypt Galaxy S5 and Memory card if phone was hard reset

I am using Galaxys5 with android 5.0, My memory card and internal storage were encrypted and I forgot to disable encryption before hard reset and update. I am unable to view all of my data on memory ...
-1
votes
0answers
17 views

Disable sound notification for the encryption password screen

When my encrypted phone boots, it starts making a knock-sound when i do not enter my password. The sound does not stop, until i turn off the phone or enter the password. Is there any way to mute it?