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

learn more… | top users | synonyms (1)

9
votes
1answer
781 views

How does Samsung implement SD card encryption?

My android device just stopped working. I still have my SD card, but all data in it is encrypted. Encryption has been performed at file level, so I have the directory structure and filenames in plain ...
5
votes
1answer
1k 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
59 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 messages....
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
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
464 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
475 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
528 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, Cryptonite,...
2
votes
1answer
191 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
0answers
2k views

How can I decode a mobile encoded file?

I am using filelock software in my Android phone. You can encode (encrypt) any file in this software by a password. I forgot my password and without password I cant decode my file. Is there any ...
1
vote
0answers
128 views

Cannot log in to my android phone anymore

Few days ago I got firmware update in my S3. After update, I realized the default QWERTY keyboard is lost. There was only voice input. Then, I downloaded painfully "Go Keyboard" with voice search in ...
1
vote
0answers
843 views

No encryption option on Huawei g510 and Android 4.1.1

I recently bought a Huawei g510 with Android 4.1.1 and I was going to encrypt it, but I just can't find the encryption option in the settings panel or any other place. I looked around on the net but ...
1
vote
0answers
385 views

Android 4.2 “Partition…has a different major than its disk!” error in logcat

I'm using a Samsung i9100 running Android 4.2.2 via sentinelrom_v4_75_i9100. No changes to the kernel outside what came with that ROM. I've tried encrypting a number of different 4.2.2 ROMs and ...
1
vote
0answers
1k views

“Encryption Failed” on my Samsung Note 2 & it asks me to reset device. Is there a way to back up my data

I have Samsung Galaxy Note 2 from AT&T. At the reboot it displays "Encryption failed", and would ask me to reset device. I cannot access my phone. I have very important data on this phone. I want ...
1
vote
0answers
4k views

Why can't I access the files on my SD card?

I have a Motorola Droid Bionic which I recently updated to Android 4.1.2. Since the update, I can no longer access any of the files on the 32GB micro SD card I installed in the phone. I can view all ...
1
vote
0answers
541 views

Galaxy S3 Encryption ruined my photos… recoverable?

I put outlook on my GS3 for work and to do so I had to encrypt my phone. Since Encryption, Almost all of the photos I had on my phone are now blacked out. It shows me my different folders and the ...
1
vote
0answers
907 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
532 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
176 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
21 views

Android Decrypt SD Card after Factory Reset

I have a Galaxy Note2 device, Android 4.4.2, in which I have my extCard encrypted using the settings option, for a force majore I had to reset factory settings. now i can't access my important files ...
0
votes
0answers
24 views

Why is Android checking my SD card at bootup?

I have a Samsung Galaxy S5 phone running Android 5.0 (.something, update level 2016-03-01) and a 64GB Type10 SD card inside for extra storage. The phone is encrypted and works fine, today I decided to ...
0
votes
0answers
32 views

How do I recover data from an encrypted phone which will not boot and which is 'oem locked'?

My OnePlus2 phone keeps rebooting and won't give me access to the Android OS after a recent update. I now want to recover my encrypted data and reinstall the OS. After reading around on the web I ...
0
votes
0answers
16 views

How to decrypt emails with k9?

I just installed k-9 mail with open keychain. K9 recognizes open keychain. In cryptography settings I chose open keychain as pgp-provider. But when I want to read an encrypted email it just shows me ...
0
votes
0answers
19 views

Lock/sign Android OS from being changed

I want to set up an Android device in a way that all data is encrypted and the OS cannot be changed. I thought about fully encrypting all files including the system partition (like BitLocker). However,...
0
votes
0answers
35 views

Device Encryption Fails, but no error too

I have the same problem as mentioned in this thread: Device encryption fails, but no error I have a Samsung Galaxy S5 Mini (4.4.2) and every time I try to run the encryption, it reboots with no error ...
0
votes
0answers
92 views

Password not working / changes after update from COS 12.1 to Cyanogen OS 13

I've encrypted my OnePlus One a long time ago. Now I want to perform the update with the new released Cyanogen OS 13. The problem is that the phone don't want to validate the password from the ...
0
votes
0answers
28 views

Encryption key of android

Is it ever possible to get a backup of my Android smartphone's decryption key (I have my /data partition encrypted) in case something goes wrong? My phone is rooted. I have Galaxy Note 4 SM-N910C.
0
votes
0answers
34 views

Change android full-disk encryption algorithm

I've recently managed to get data on my device encrypted. However, after I learn that Android full disk encryption uses dm-crypt underneath I've decided to go a bit futher and replace default ...
0
votes
0answers
32 views

Can I use encrypted phone as a means of secure storage?

I have an encrypted Android phone. Can I mount this device to my computer and save files to it as a means of secure storage?
0
votes
0answers
105 views

How can I enable encryption on Android 5.1 if setting not available in Settings > Security?

I have Android 5.1 I have been reading that it is possible to enable encryption of the disk. It seems my phone manufacturer has removed or hidden this option in my phone.
0
votes
0answers
139 views

Galaxy S5 (Cyanogenmod 13) Bootloop on Decryption

My Samsung Galaxy S5 has Cyanogenmod 13 installed on it; one of the recent nightlies, March 14th 2016 I think. I attempted to encrypt the device. It took a few minutes before rebooting. Now my phone ...
0
votes
0answers
87 views

Phone asking for text-box password when use pattern after encrypting

I just encrypted my Moto e 2nd generation LTE running cyanogen mod 12.1, I rebooted to test it and it was just fine but now it is asking me for a text password which I don't understand! Please can ...
0
votes
0answers
601 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
74 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
79 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
336 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
87 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
77 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
122 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
25 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
79 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
48 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
45 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
309 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
81 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 http://trendblog.net/fbi-...
0
votes
0answers
147 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
177 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
123 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
4k 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 ...