Questions tagged [encryption]

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

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How to recover encrypted files from sdcard from phone with broken screen?

So I have a few problems with my Galaxy S9+ phone: About a week ago, my old galaxy s9+ phone's screen started turning black right before the login screen. I can see the Samsung and verizon splash ...
3 votes
2 answers
1k views

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

On my Samsung Galaxy Nexus running AOKP 4.2 JellyBean, 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 ...
0 votes
2 answers
1k views

How to open protected files from LG devices?

I sold my LG G4 and I used the content lock on my files. Now, I switched my mobile to Huawei P8 Lite, but the files which were protected from my LG G4 couldn't be opened, and their format is some 'dm ...
4 votes
1 answer
4k views

Access encrypted /data Partition over ADB and recovery (TWRP, LineageOS 16, Redmi Note 4)

I have a Redmi Note 4 (mido) Android phone with a broken screen: the screen lights up, but otherwise it stays entirely "black". I already replaced the screen, but with no luck - the cause of the error ...
0 votes
0 answers
65 views

Are the Android app switcher/multitasking snapshots created when an app is sent to the background, encrypted?

This post here: https://android.stackexchange.com/a/218963/364009 outlines the snapshots location for the app switcher when an app is sent to the background, /data/system_ce/userid/snapshots, or at ...
13 votes
1 answer
4k 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 ...
0 votes
2 answers
4k views

Rooted, encrypted Galaxy Note 8" stuck in bootloop

I poked at things I shouldn't have after rooting/encrypting my Galaxy Note 8" tablet (GT-N5110) and now it continuously loops through the bootup screen. It gives me just enough time to see the &...
5 votes
2 answers
1k 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 ...
5 votes
1 answer
2k 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)? ...
0 votes
0 answers
92 views

File based encryption question

So in full disk encryption, the encryption key is lost on factory reset making it so the data is unrecoverable without the encryption key. What about file based encryption on newer devices? Does a ...
1 vote
0 answers
41 views

Question about FDE without secure start up and factory reset

So I read that on device launching with 7.0 , it has FDE by default and a 256 bit primary key is randomly generated at first booting the device (say after a factory reset). My question is, if no ...
1 vote
1 answer
1k views

How to get the "Encrypt external SD card" option to show (on a LG Optimus F6)?

The "Encrypt external SD card" option doesn't show up under Settings -> Security on my LG Optimus F6, or my Huawei Y301-A2. A microSD card, FAT32 formatted and empty, is inserted and ...
1 vote
0 answers
81 views

Multiple encryption passwords (also different from screen lock password) with file-based encryption

QUESTIONS How can you set different passwords for file-based encryption of different files in an Android version that allows file-based encryption? As a corollary,* how can you set a file-based ...
4 votes
1 answer
882 views

File-based encryption security and backup/restore considerations

I'm evaluating making the move to file-based encryption on my device, but am having trouble finding satisfying answers to the following questions: Apps can place data in either a Credential Encrypted ...
0 votes
2 answers
1k views

Is it possible to set an encryption password different than lock screen PIN?

I set up phone encryption using a numeric password. Android 4.4.4 on OnePlus One (Cyanogenmod 11S). Now on the lock screen, I'm asked for the same numeric password (but instead of a text input field, ...
1 vote
0 answers
72 views

How to decrypt a recovered password on Samsung S6?

I have rooted my Samsung S6 so that I could recover wifi passwords. But the app Wifi password Recovery find an encrypted password. Is it possible to find the original password? If so, how can I do to ...
1 vote
3 answers
9k views

Phone will not let me ENCRYPT

I want to encrypt my apps and personal data, such as passwords to email etc. If I have factory reset my phone (GS2sprint) and it is fully charged (over 90%) and plugged in. So I went to Settings→...
4 votes
3 answers
5k views

How to make full backup of encrypted Lollipop Nexus 5 device?

This guide describes how to make full backup of whole memory block. My N5 is encrypted with Android 5.0. As far as I understand new mechanism, it envolves dependency on some external data taken from ...
1 vote
2 answers
151 views

Encrypted device doesn't ask for credential on boot anymore on Android 11

I use Android 11 (LineageOS) and recently noticed, that my phone stopped asking me for a decryption password when booting up, so I tried verifying that my data is still actually encrypted. Settings ...
1 vote
0 answers
45 views

Copy Galaxy S4 encrypted storage to computer

My dad passed this summer, he had a galaxy S4 which probably holds many photos I'd like to recover. I tried many passwords to unlock the phone but now it says that if I try two more times it'll erase ...
0 votes
0 answers
31 views

Wiping an Android phone > Should I delete accounts before encrypting or after?

I am wiping an HTC One M8 with Android 6. Currently no encryption in place. Should accounts such as Google etc be deleted BEFORE encrypting or AFTER? When I go to remove them I get a message warning ...
0 votes
1 answer
1k views

Should I delete accounts before encrypting and factory reset

I want to wipe the phone with android 4.3. https://www.cnet.com/how-to/the-best-way-to-completely-wipe-your-android-device/ says that I should encrypt the phone before factory reset because factory ...
1 vote
1 answer
996 views

LineageOS encryption not working dispite being told it is

I used to use cyanogenmod 13 on my nexus 5, i had the encryption enabled and it would ask me for my passcode at boot and i could not access any data from anything until i did this. I've now updated ...
2 votes
1 answer
281 views

How to get a list of all apps that start in Direct Boot Mode (Device Encrypted, not Credential Encryption)?

I want get a complete list including all apps (including system apps) that are running in Direct Boot Mode, therefore they necessarily store their data in the DE (Device Encrypted) area (as opposed to ...
1 vote
1 answer
7k views

Huawei File Safe Stuck/not working

I have created a safe on the SD using the files app on my Huawei P20 Lite. It worked fine, until I decided to create a second one. Now, it no longer asks for my fingerprint, but for my password. After ...
0 votes
0 answers
27 views

SD Card Decryption on Samsung Galaxy M30

I encrypted the SD card in my Samsung M30 and then I factory restored the device. Now I can't access my files on the SD card. Can I recover the data that I stored on it? Are there any tools that can ...
0 votes
0 answers
33 views

How might I back up, copy, export, etc. Pale Moon bookmarks on encrypted HD without using PM Sync?

I'm pretty sure my phone has a virus. I DLed a copy of Bejeweled 2 last November and ran it on VirusTotal (old browsers) and one service flagged it with a Trojan, IIRC, so I never installed it, but ...
1 vote
1 answer
992 views

LG G6 (H870) LineageOS 14.1 - Encryption not working

I have been waiting for official port of LineageOS to my LG G6 (H870). And yesterday I decided to install the newest version of LineageOS (14.1 20170912) on my G6. I downloaded unlock.bin from LG's ...
9 votes
1 answer
14k views

How to fix bootloop or decrypt /data in TWRP?

I am trying to recover the data from a default/factory encrypted Samsung Galaxy S7 Edge stuck in a bootloop (i.e.: restarting endlessly when booting the system). It is using the stock rom. Only the ...
3 votes
3 answers
506 views

How to decrypt a phone in bootloop mode

I have an encrypted android running LineageOS 15. When it said that there was an OTA update, I choose to download and install this new update. In the first moment it seemed to be alright but when the ...
1 vote
0 answers
64 views

How to factory reset when /data cannot be mounted?

My phone shows "Encryption unsuccessful" message after trying to open and the "Factory reset" button below it does nothing. I tried to boot into recovery mode (Power + Volume Up + ...
1 vote
0 answers
61 views

How could an Android device lose its key for the SD-card?

I am right now trying to debug a Lenovo P11 tablet that basically seems to have lost access to its SD card: 11-08 21:24:31.742 592 592 I vold : Mounting emulated fuse volume 11-08 21:24:31.744 ...
4 votes
1 answer
270 views

Possible to have different passwords for device encryption and screen lock?

I'd like my device encryption password to be very long and complicated but a short screen lock password for convenience. Is this possible?
1 vote
0 answers
61 views

Recovering forgotten lock

I have forgotten a 3x3 pattern lock on my phone, luckily I do have TWRP. Is there an easy way to brute-force it, then? I'm willing to wait a while if that's what it takes. The reason I ask is because ...
0 votes
0 answers
150 views

Miui's default file explorer's private folder encryption issue

I am no techie and no good with codes either but a good Scriptkidie if u suggest some work around for my serious issue here!! Hi everyone, I am on Android 11 poco x3p, recently I hide some image files ...
14 votes
3 answers
14k 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, ...
2 votes
1 answer
57 views

I can enter recovery but not sideload, and fastboot does not recognize the device

I have a shieldtablet which was working fine, until I decided to encrypt the drive. The process completed, the device rebooted, and it's stuck in a reboot loop. Neither Linux/Windows recognize it when ...
4 votes
1 answer
1k views

No full disk encryption in Samsung Galaxy A71

I just started using my brand new Samsung Galaxy A71 (Android version 10) by doing an initial setup, and it seems it does not support full disk encryption at all. On the contrary, on Samsung Galaxy A7 ...
3 votes
1 answer
547 views

Why can I view files from "Internal Storage" WITHOUT entering password either in OrangeFox recovery or via USB cable on PC?

I was under impression that all user files are encrypted by default in Android using FDE. It was to my surprise that I can just run, for example, OrangeFox recovery and when it asks me for a password ...
0 votes
0 answers
470 views

Android encryption and Native Library Storage Locations

I have written an app that uses a native shared library via the Android NDK. I am particularly interested to know whether the .so file is stored in a location that would be encrypted if I were to ...
1 vote
1 answer
10k views

Is the Samsung Galaxy S9 encrypted by default or can it be encrypted?

Basically, I travel a lot with my phone and having it encrypted would be very useful in knowing that a crook wouldn't be able to gain access to my data should my phone be stolen. I heard from one ...
1 vote
0 answers
80 views

Is the data on flash memory encrypted or unencrypted?

I understand there was full disk encryption from Android 5.5 to 9. Not sure it was ever the default, and not sure what the default is now. I've bricked a Pixel 3 running Android 11, and I want to know ...
2 votes
0 answers
5k views

Can i manually decrypt a folder encrypted with ES File Explorer?

I had encrypted a folder using ES File explorer. Then later on, I upgraded my ROM from cm12 to cm13. And then, I was not able to decrypt the data with ES file explorer, after the OS update. I know ...
1 vote
0 answers
36 views

Reset failed decrypts counter Android 10

I have a locked phone (forgotten PIN). And due to many incorrect attempts, the gatekeeper timeout or cooldown period is stuck at 480s. Is there any way to reset this failed decrypts counter, so that ...
4 votes
0 answers
390 views

Recovering data from Android 10 (forgotten PIN)

Long story short: I have forgotten the PIN to my Android device, as it wasn't being used for a while. Steps that I have tried/am trying/planning to try: Brute forcing - I have been trying to brute ...
0 votes
0 answers
52 views

Why does encryption doesn't work/apply to access device storage or Google photos or drive when we upload a file from device/cloud to any webpage/apps

Example : YouTube, Facebook, Instagram, Chrome ( any app ) If I'm accessing YouTube or any other app where I can upload content from Android device with or without the app lock features, whenever I ...
1 vote
0 answers
39 views

Is date safe in encrypted phone without passcode

If my phone does not have a passcode, but is encrypted by default, and I factory reset it, is my data safe? Or is there a way someone can decrypt it since it had no passcode
3 votes
1 answer
29k views

LINE Letter Sealing - Unable to display message as it couldn't be decrypted

LINE is a chat application. I recently reinstalled my OS, and restored my LINE chat history using this procedure. Problem: Some of my chats appear like this: It says: Letter Sealing Unable to ...
0 votes
1 answer
209 views

How to set distinct boot and lockscreen passwords in Android 10 (full disk encryption)

How can I set a distinct password for: The Full Disk Encryption password (used to boot the device) The Lock Screen password (used to unlock the device) For security reasons, I use a 25-50 character ...
0 votes
0 answers
54 views

Password-Protected Notes Encryption

I have one question about the encryption algorithm used for password-protected notes. I am an Android smartphone user and for taking notes, I use my phone's native Samsung's note taking App. But, I ...

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