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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Samsung Galaxy Note 10+ 5G - cellebrite mobile forensics data extractions - locked with pattern

I've got a locked Samsung Galaxy Note 10+ 5G (running the latest android 10 and patches) The phone is locked with a pattern (unknown) What are my chances of any data extraction with cellebrite or ...
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Fiio m7 (Android Audio Player) full disk encryption and control internal storage access only when logged in Android 7.0

i have an android music player that uses a custom firmware of android 7.0. There isn't a full disk encryption option shown, so i do not know what i should do to encrypt it. Also, it lets people access ...
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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 encrypt deleted data on Android 10

I'm running a custom ROM (MIUI xiaomi.eu 12.0.2/Android 10QKQ1.90910.002) and my phone is rooted. I want to encrypt my old deleted data (photos and videos) so that they can't ever be recovered after ...
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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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Cryptfs : Unexpected value for crypto key location

Phone: Samsung S9 Plus, 256Gb OS: Lineage OS 17.1 (Android 10) ROOT: TWRP 3.5 I installed Lineage OS 17.1 on a Samsung S9+. It's been working fine so far. However, when I encrypt the OS from the ...
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My SD card got damaged [duplicate]

iam unable to format it not use it. i need an app that will help me recover my data please anyone can share light to this. Thanks in anticipation
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What can be done with a phone that has an encrypted bootloader

I am trying to get a rooted android phone set up for reverse engineering purposes. I tried to root two separate phones (SM-G925A and a Google Pixel 2) but they both turned out to have locked (meaning, ...
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Does Android disk encryption use device-specific keys (such as IMEI or model) to encrypt the disk?

This question is about how disk encryption for Android 6.0 works. In short: Does Android 6.0 disk encryption use any device-specific keys (such as IMEI or model) to encrypt the disk? In detail: I'm ...
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FBE encryption bootloader state in keys

I want to unlock bootloader on Android 8.0 FBE encrypted with PIN I don't wanna lose my data, therefore i made backup of userdata partition before According to CCC the bootloader state is part of ...
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Any way to root a crushed phone and get encryption file from it?

tl;dr Is it possible to root an Android 8.0 phone that is accessible only via USB? Is it then possible to extract encryption .key file out of it in order to decrypt its SD Card that was formatted and ...
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Forgot encryption password, too many wrong password attempts = wipe: Can I image my phone to “get more password tries” by restoring an image? [duplicate]

Forgot my Android encryption password, only have 10 tries left before data wipe, how can I backup my phone to get 10 more tries if I don't manage to find the password within 10 tries? For context: ...
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Why I don't need to provide boot-time PIN anymore?

tl;dr: I have my Motorola Moto Z2 Play / A8.0 encrypted and I was forced to provide PIN during very early boot phase of my phone. Since about 1-2 weeks ago -- when my phone had a one-time accident of ...
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1answer
359 views

TWRP not asking me to enter password to decrypt

I need to restore from a backup. However TWRP stopped asking me for the password to decrypt. In the terminal emulator I tried twrp decrypt 1234 but got the error "Failed to decrypt data". ...
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Encryption: can't decrypt data after rom downgrade

I downgraded an Android 10 custom rom while I had encryption enabled (rom). Basically I dirty flashed a previous minor version of the rom via TWRP (with just a simple "wipe cache/dalvik"). ...
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Restoring the /data partition on Android 11 yields an unlockable phone

I have a Xiaomi A2 which went into a bootloop due to a buggy Android 11 OTA update. It's a bug in the update, and a lot of people are affected. My phone really had a rather vanilla setup (original ...
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How much security does Android encryption provide for turned on devices?

In case my device is stolen it probably will be turned on. How secure are my data when this happens with Android 10 and file based encryption (https://source.android.com/security/encryption/file-based?...
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Android 8 encrypt phone vs SD card

I have Android 8.1 on my phone. It states under Settings->Security->Encryption&cred = Phone Encrypted. I am using microSD on my phone. This microSD is not encrypted as I am able to remove it ...
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How to sniff android app connected URLs

I want to intercept a traffic and found out some streaming URLs from an android app. When I tried to use Packet Capture, the app says "please turn off VPN connection" once started. So I can'...
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Break SQLcipher by modifying libsqlcipher.so?

I was trying to extract data from an Android app which uses SQLcipher. SQLcipher is an extension of SQLite that encrypts database files with 256-bit AES. Most of the application code is compressed and ...
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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 ...
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Will any new apps or data installed or added to android phone after encryption also be encrypted?

if an android phone is encrypted, will any new apps or data installed or added to phone after encryption also be encrypted?
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Is it possible to have a custom ROM with a locked bootloader?

I just mention in-advance to please correct me if I'm mistaken on anything, I've a limited tech proficiency. I've a Samsung S9 (Android 10) and I wish to install an AOSP ROM (also on Android 10), but ...
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How to get data off an encrypted android phone with a broken screen

I have a Samsung A5(2017) phone that is encrypted requiring a pattern at boot time. I have dropped the phone and the screen is cracked and dead. Any thoughts how I can get the data off the phone? The ...
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Encrypt Tablet function in Android x86. Android 6 in Oracle Virtual Box

I am currently running Android x86 version 6 in Oracle Virtual Box. My intention is to run some software my company creates and to test it without the need for a physical tablet. The software i ...
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Is it possible to have manageable encryption when using TWRP/unlocked bootloader and modified ROM?

Every single piece of information I've come across warns me about issues with sane encryption when using custom recovery, unlocked bootloader and non-stock ROM (as in modified, not community AOSP ...
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Where is the e4crypt policy stored?

Restoring the Data partition from TWRP fails due to a missing e4crypt policy: ==> extracting: //data/user/10/ (mode 40771, directory) Cannot find key for 10 error looking up proper e4crypt policy ...
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How to unencrypt my data on a Lenovo Tab M8 FHD TB-8705F device

I'm trying to unencrypt my data on my device. My device is rooted with Magisk Manager. This is what I have already tried. Uticked the box Preserve forced encryption in Magisk Manager. Patched the ...
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Android Encrypt with ADB install? TWRP CarbonROM

I have the following problem: I have CarbonROM 8.0 and the default /data full encryption does not work. Now I want to set it up with the ADB {Android-Bridge}... à la: adb shell recovery --...
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Can't decrypt adopted storage [closed]

Last night, I messed up my LineageOS 16 install on my Galaxy S5 and had to reinstall it, starting essentially from scratch. I wanted to see if there was any way I could decrypt the 128 GB microSD card ...
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How does Android's FBE store each key used to encrypt each corresponding file?

I am very new to Android's FBE and still learning the basics. From what I could understand, the way FBE works is that for each file to be stored on the disk, the kernel requests for a key from some ...
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is decrypting of SD card formatted as internal storage possible, if there was an update inbetween (android 9-->10)?

regarding this guide: How to decrypt the corrupt SD card formatted as internal storage? could this work in any way, if additionally i did an android update (android one 9 --> 10) inbetween?:
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What does an Android-encrypted SD card do/look like on PC

Long story short - my Galaxy Active S8 apparently got wet inside, and stopped working (although I think I can revive). I've let the Samsung microSD card for almost 24 hours, and as it's simply a card ...
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Is it possible to decrypt an encrypted SD card without rooting the Android phone? (How to get the .key file of /data/misc/vold?) [duplicate]

I'd like to encrypt my SD card for Android conveniently, safely and in a cross-platform way so that it can also be used on other devices. I asked about that here. As of right now there doesn't seem ...
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124 views

how does disabling 'password at startup' works before file-based encryption?

Android 6 (before file based encryption): after encrypting device and setting screen lock, i can choose an option 'require the PIN, password, or pattern at startup' or can i choose 'no thanks'. in ...
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Flashing recovery directly to EMMC to retrieve user data

I've got xiomi redmi 5 with stock rom and all settings. It doesn't boot. I tried many ways to fix it but all failed. It's not unlocked and doesn't have adb enabled so I couldn't get data from it. I ...
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Are there any downsides to encrypting an Android device?

Besides requiring a lock screen, are there any downsides to encrypting an Android device (using the native encryption)? For example: is there a performance decrease? is there a temperature increase? ...
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How to encrypt an SD card for android so that it can also be used on other devices?

When encrypting the SD card via Android's encryption it makes the SD card only usable on that device. However if that device gets lost or broken or if one would like to access the SD card from ...
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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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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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Securely storing keyfiles with authentication and alike

I am using Keepass as my password manager. I am using a keyfile for securing access to my database. However when I want to do the same on my android phone I have to store the keyfile in my phone ...
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/data's data is garbled in TWRP. How to decrypt

So this is quite another android story but I promise to keep is as short n dry as poss. The issue was some of my Apps weren't able to access /extsd folders with non root & so I deicided to give ...
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762 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 ...
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453 views

Encrypted data still on phone after stock ROM flash. How to decrypt it?

I find myself in a weird situation. My phone (Mi 9T Pro, Android 10) entered a boot-loop after updating MiUI and reinstalling TWRP. I tried installing TWRP again, but then it refused to decrypt the ...
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Is it possible to crack the password.key or any other .key file from /data/system/?

I am a newbie... So this question came in my mind when I removed my screen lock using adb by deleting the .key file from the /data/system/ folder.... For removing we delete the .key file, but what if ...
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Going crazy, please help => Trying to read whatsapp crypt7 file from old Xperia LT15 phone

I'm trying to retrieve some old messages of someone dear to me, from an old phone of mine from 2011/2012, a Sony Xperia LT15i. But it's driving me bat shit crazy. The whatsapp on the phone is linked ...
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Android 9 pie see if device is encrypted

I am trying to figure out if my Android (Pie) is encrypted. Per Is there a way for a user to tell if their Android device is encrypted or not?, it says my phone will be reported as phone encrypted. ...
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411 views

copy encrypted internal storage to pc ( in twrp mode )

I have this situation where I had my internal storage encrypted and then by using twrp I formatted only my data( booted into twrp > advance wipe > selected data and Dalvic cache > swiped to wipe . I ...
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How to create filesystem in TWRP? Getting error: “Unable to format to remove encryption”

The screen appears after booting into TWRP and trying to format memory: I was trying to flash a custom ROM using TWRP recovery but it's showing Unable to mount storage & Failed to mount '/data' (...
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How to decrpytion from twrp

Firstly, I need to say my specific problem so that this question won't marked as duplicated. I've an android phone that has already root access and bootloader lock open. And recently I dropped it and ...

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