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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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 ...
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What is the electrum bitcoin wallet password encryption method? [migrated]

What method does Electrum bitcoin wallet use for password encryption? I want to check to see if the file encrypted with the password is secure. And what are the ways around to decrypt it outside the ...
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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: 1. Brute forcing - I have been trying to brute ...
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Unable to mount fastboot boot twrp.img backup unable to mount storage?

I was trying to load fastboot boot twrp.img and take backup of stock rom system.img userdata.img through twrp recovery... it loaded successfully but while taking backup its not able to take backup ...
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Reset failed decrypts counter Android 10

Hi everyone! 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 anyway to reset this failed decrypts ...
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How to add strong encryption to an SD card so that I can access it both on my desktop and phone using open source non tracking offline tools?

The question says it all. So far I was able to find out Default android encrypted SD card can only be read by the phone or by a skilled hacker or their non open source tools There are tools that are ...
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1answer
949 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 ...
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1answer
454 views

Clean LineageOS 17.1 install and empty device - can't work out how to mount data partition in TWRP?

I'm installing LineageOS 17.1 on my new phone. It works fine, but I can't get to data in TWRP. As usual, to install, I wipe everything, drop into TWRP, format (not just wipe) data, wipe cache/davlik/...
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Copy private key from OpenKeyChain to tails GPG?

I have a private PGP key on OpenKeyChain that I'd like to move to tails. There only seems to be one way to export from OpenKeyChain - choose to make the encrypted backup file? But I can't get the ...
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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 ...
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How to decrypt android adopted storage without the key?

I would like to know if there is any possible workaround for decrypting the adapted storage. I don't care about recovering my data because I've got the backup already. I tried formatting the sd card ...
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Does `adb push` put files in the DE (Device Encrypted) or CE (Credential Encrypted) storage?

Does the use of adb push put files in Android's DE (Device Encrypted) or CE (Credential Encrypted) storage area? According to the FBE (File-Based Encryption) documentation On an FBE-enabled device, ...
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How to disable Direct Boot Mode in Android 10 (Device Encrypted, Credential Encryption)?

I want to disable Direct Boot mode on my Android-10-based tablet so that no apps can start on-boot until after I enter my decryption password. Background: As of Android 7, FBE (File-Based Encryption) ...
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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 ...
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Does GrapheneOS's Android 10-based releases use FDE (Full Disk Encryption)?

According to the ASOP documentation, it is no longer possible to use FDE and the user is forced to use File-Based Encryption Note: Devices running Android 7.0–9 support full-disk encryption. New ...
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Decrypt folder, that was encrypted using EncFS, on Android

So this is my setup: I use Ubuntu (11.04, but this shouldn't matter) to encrypt my secret folder. I sync this folder using Ubuntu One (Dropbox would be possible too). Now I want to have it on my ...
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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 ...
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How to use FDE in Android 10 (Full Disk Encryption)

How can I setup Full Disk Encryption in Android 10? According to the ASOP documentation, it is no longer possible to use FDE and the user is forced to use File-Based Encryption Note: Devices running ...
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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 ...
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1answer
82 views

The default Full Disk Encryption feature (known as Secure Startup on Samsung phones) is not working for me

In the past, with older Samsung devices, whenever I have enabled Secure Startup to fully encrypt a device, I have gotten an instruction to charge it to at least 80% and leave it plugged in, as it ...
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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 ...
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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 ...
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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)? ...
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964 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 ...
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Why isn't the unlock pattern working anymore?

A few days ago my unlock pattern was not recognized anymore. I'm guessing the cause is memory corruption or some bug. I haven't restarted the device yet, hoping to "find" the new pattern or ...
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1answer
8k views

Decrypt Android 10 File Based Encryption (FBE) data

Device: Xiaomi Mi 9 ROM: [[ROM][10.0][Xiaomi Mi 9][UNOFFICIAL]Pixel Experience AOSP[2020/04/11], ROM for the Xiaomi Mi 9 Hi, I tried to upgrade my ROM from an older to a newer version with a clean ...
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2answers
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Rooted, Encrypted Galaxy Note 8" stuck in bootloop!

I am a noob. In a nutshell, 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 boot up screen. It gives me just ...
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Backup and restore file-based encryption keys

Android File-Based Encryption is implemented via fscrypt. How do you backup and restore fscrypt encryption keys? Both the master keys and the per-file keys would need to be backed up.
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If a phone is encrypted (Android 5.1) but user doesn't use a screen lock, and then does factory reset, is data secure?

If I have a phone running Android 5.1 and it is encrypted, but I don't use a lock/PIN for unlocking and using the phone, does that mean if if I do a factory reset, the data on the phone can still be ...
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How to resolve an encryption issue?

I used a lockscreen to encrypt my phone and accidentally messed up the system and TWRP. I've since formatted it and am using it normally, albeit without root this time lol. But, just in case, I made a ...
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1answer
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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 ...
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Terrible SD card performance after enabling encryption

Device: Samsung Tab A7 2020 - purchased less than 1 week ago OS: Android 11, April 2021 patch Files used to test: three zip files totalling 613 MB Micro SD cards which have been tested: Unbranded 256 ...
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What method does Monospace use for encryption?

This application has the ability to encrypt. What method does Monospace use for encryption?
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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 ...
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1answer
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 ...
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Opening .sa files from old android(broken) to newer android

I have some *.sa files on my devices. These files which were saved by me are either images or PDF. But these files do not open with a photo viewer or PDF reader. So how to open and read files these ...
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181 views

RCS Messaging Encryption

With the launch of Google's RCS messaging protocol, is there any reason as to why it doesn't support end-to-end encryption, or is it a feature that they intend to implement at a later time?
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3answers
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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 ...
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1answer
27k 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 ...
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Android SD card encryption

I was looking at some encryption standards and was wondering, what kind of encryption algorithm does Android's SD card encryption use? Is it AES 128 or a different algorithm?
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How to decrypt /sdcard | Keymaster HAL 4 | Unexpected value for crypto key location

-Update: Looked into TWRP log, and it seems like it has key problems: I:Setting up '/data' as data/media emulated storage. I:mount -o bind '/data/media' '/sdcard' process ended with RC=0 I:mount -o ...
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890 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 ...
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1answer
57 views

Is it possible to securely factory wipe a phone directly after encrypting it?

I would really like to make my phone more secure. But at the same time I want to be able to factory wipe it any time. I'm afraid that factory wiping could brick the phone/makes it unusable. So is it ...
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Does android keystore and “Clear data” of the “Settings” app are related?

I am working on a system app where i am storing some sensitive data in EncryptedSharedPreference. I realise that my app is not working as expected if I do clear data of android Settings app. That is ...
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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 One plus one (Cyanogenmod 11S). now on the lock screen I'm asked for the same numeric password (but instead of a text input field, ...
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59 views

Decrypting an SD Card after the phone is wiped?

I have a Samsung Galaxy with an encrypted SD card, but the phone got factory reset. Is there a way to decrypt it?
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XLOGGER on Xiaomi?

Installed simply file explorer on my pocket telecreener. Xiaomi MI 8 Pro, right now it running on unrooted MIUI 12.04 It happens that I have found a .log file, (completly by accident) with a hundreds ...
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Android device ro.crypto.state returns “encrypted”, but I can access the /data partition. How?

I have a OnePlus 3 with an unlocked bootloader and LineageOS. I forget the PIN and I am trying to recover access to it, and I have access to the recovery. The data is encrypted. My understanding is ...
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425 views

F2FS partition does not mount, fsck.f2fs does not resolve. I want to recover the files

I made a backup of my phone's userdata partition with the command (because the /data is not mounting): dd if=/dev/block/bootdevice/by-name/userdata of=/usb_otg/userdata.img I need the files that are ...
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How can I dump the fscrypt per-file nonce by getfattr command?

According to document of kernel about fscrypt: Filesystem-level encryption (fscrypt): Per-file encryption keys Since each master key can protect many files, it is necessary to “tweak” the encryption ...

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