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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Android 13 configuration stops on picking screen lock
tl;dr My phone has become "bricked". After wiping all the data it regain normal functionality, but I cannot complete Android initial configuration due to phone stopping on selection of a ...
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Recovering Whatsapp crypt8 file
I would like to re-read some old whatsapp chats that are in a .crypt8 file; I have put the database in my new phone after reinstalling the app and so on (I was already able to use this procedure for ...
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TWRP fails to mount data partition with error, says Invalid argument
I have a Fairphone 4 with /e/OS that I accidentally left a long download running overnight until the storage filled up. The phone also ran out of battery during this, and now it won't boot. The ...
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Force enable encryption for portable SD card
There should be an option to encrypt SD card (formatted as portable) in the settings, but some manufacturers disable it while some (e.g. Samsung) have it enabled. If that is a built-in Android feature ...
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How can I access my phone with a broken screen when TWRP decryption is unavailable?
Recently I broke the screen and digitizer of my phone and now want to be able to get my data off or even control it. While researching I stumbled upon scrcpy which gives you full access to your device ...
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"Your encrypted data is locked on this device" error message
The question is simple, I just want to know what does below message means?
Your encrypted data is locked on this device
For security, you can no longer access your encrypted data on this device. Try ...
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S9 died black screen cell gone but I need to decrypt my SD card- Help!
My S9 black screen death, now GONE. TMobile replaced now I have a Moto G5 android. It does see the files but does not open. I have encrypted my SD card not aware I had to decrypt from my S9 but now I ...
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How to copy screen lock password from one device to another in Android11?
So I'm trying on copying the Android 11 screen lock password to another same device
our customer does not want to set the password one by one
and I find out a resolution: copying files
However it ...
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Will some of my photos and files still remain in the memory if I do a factory reset? [duplicate]
Just wondering... If I sell my Android phone, is it possible for the new owner to use some data recovery software and recover some of the files?
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With magisk, how to bypass boot-time password input?
I have an phone with magisk and termux installed, and now functions as a mini server at home. Whenever I need to reboot the phone, I need to manually unlock the phone with GUI to get termux running, ...
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How do you decrypt EncryptedSharedPreferences on a rooted emulator
I'm trying to put together a PoC to show that a root user can decrypt any app data that relies on the keystore.
On a rooted emulator, I installed an app that uses EncryptedSharedPreferences.
I can see ...
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Disable Encryption without wiping data in Custom Rom
Does it possible to disable encryption in Android10+ without wiping data partition to access personal data?
(unlocked bootloader)
In other words, Can I trust custom roms to protect my data?
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Andriod encryption/decryption
My Android phone is dead, but I want to recover my data. I removed eMMC using chip-off and acquired the image/dump file (userdata.bin) using Easy JTAG. The phone had Andriod 9, which uses Full Disk ...
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Can my employer read my notes if I use their Wifi?
I have "Colornote" app in my android device and I'm using that app for many years. I write my passwords and many other personal things. My workplace has wifi and I use it regularly. Often my ...
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How to regain lost access to encrypted data, known lock pattern
My S10e is running LineageOS 19.1, rooted with Lygisk.
After one specific reboot after changing the SIM card, it entered a boot loop where it showed the Lineage boot animation for a few minutes, then ...
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Is Samsung Knox really that great and how can I achieve near-Knox level security on a rooted device?
When I first started learning about installing custom ROMs like LineageOS, it wasn't long before I was made aware of the security implications involved, particularly with unlocking the bootloader. The ...
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Final steps to repair corrupted F2FS SD Card - How to fix "can't read superblock"
[I modified the question to reflect the progress]
The TLDR version is, the card is adopted storage that says corrupted f2fs.
I used the process detailed Here but when I tried to mount the decrypted SD ...
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Finding Decryption Key and how to use it to decrypt
Nokia 6.1+ device using pixel experience ROM based on Android 12.
Adopted SD card as internal storage and removed it without 'Eject'.
Afterwards couldn't read the data even on the device itself.
...
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SD card Adopted as Internal storage [duplicate]
Using Pixel experience Rom based on Android 12 on Nokia 6.1+.
Mistakenly adopted SD card as internal storage
and while the files/data was being transferred from phone to Sd card/ shared internal ...
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Do apps like iMyFone LockWiper actually work?
I recently had my phone stolen and would like to know if I should change all my debit cards and other sensitive info. I want to know if is it possible to actually bypass the default lock screen and ...
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Is my data secure after factory reset with NO password SET
I had one plus 8 pro brand new phone Android 10. I sold the phone in a week's time. I never set any password or screen lock. I understand android 10 uses file-based encryption. I just did a factory ...
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Is FBE + Metadata Encryption secure if pin/password not set
My device is based on Android 11 and does not have a security lock screen. By default it has FBE and Metadata encryption enabled. How secure this encryption is without setting the Pin/password.
How is ...
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Can any data be recovered without a password/PIN?
If someone doesn't know the password required on boot, is there a way to access the data on the device?
It should be encrypted, but I read about Samsung adding something called Maintenance Mode where ...
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Decrypt data in recovery after bootloop
I’ve made a little mistake.
This year, I’ve installed LineageOS for MicroG on my Fairphone3. It provides OTA updates but with the last one, it is said I must follow the official instructions on ...
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How does Android generate FBE Keys
I am trying to understand how FBE and metadata encryption works.
I read a lot of pages on FBE that it encrypts each file with different keys, and that those keys are encrypted and hashed with the Lock ...
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How to secure files in SD card by using adoptable storage?
I asked this question before, and this is a follow-up.
I am trying to encrypt my SD card for data security (I don't want some random guy to be able to access my photos/documents/downloads by just ...
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Can I use an ecrypted flash drive on Android?
Is it possible to use a flash drive encrypted with LUKS and connected to the phone with an USB OTG cable?
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TPM (Trusted Platform Module) vs. TEE (Trusted Execution Environment) - can credentials be *stored* on both?
TPM is physically isolated from the rest of the system (i.e. it is a standalone chip on the mainboard), while TEE is a secure area of the main CPU.
The key function of both TPM and TEE is to do ...
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FBE securely wipe all data
According to android documentation the FBE system has two different levels. Credential Encrypted (CE) storage and Device Encrypted (DE) storage.
Does a factory reset of an FBE phone reset the keys of ...
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Encrypt files using Android shell tools
I want to encrypt and decrypt some files (symmetrically and asymmetrically) on the Android command line, including the one in the TWRP recovery. Is there a program which can do this?
I've tried ...
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Cannot Mount userdata partition on Android 11
I have pulled a block of encrypted userdata partition ".img" and trying to mount it on unecnrypted device (same device with encryption set to off). My device is rooted.
My userdata is ...
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How to decrypt (FBE) file-based encryption Adoptable Storage Android 12 [duplicate]
I backed up encrypted data of adopted internal storage on my PC & then Formatted the SD card as portable storage.
But I have not factory reset my android system so the key
for decryption must be ...
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How to Read the Key from phone internal storage generated when formatted sd card as internal storage? [duplicate]
If I manage to get root access to my device, where to find and how to read the decryption Key?
I selected sd card to be used as internal storage and removed it without Using 'Eject' , that too ...
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Encrypting an SD card so that it will also work on a new phone
I have a LG G8 running Android 10. Your basic, unrooted, stock ROM phone commercial phone. It has a 64GB SD card where I place most of my data.
I want to know how I could achieve the following 2 goals ...
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Samsung's note-taking app encryption algorithms
Does anyone know what's the encryption algorithm used in Samsung's Android note-taking app?
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Is it possible to dump an Android partition with file-based encryption (FBE)?
Consider an unrooted Android 9.0 device with file-based encrypted (FBE), a locked bootloader and only recovery and download modes available. Is there any way to dump the internal storage either to the ...
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Does File-Based Encryption (FBE) in contrast to Full-Disk Encryption (FDE) allow deletion of individual encrypted files?
As far as I understand, Android 9.0 switched from Full-Disk Encryption (FDE) to File-Based Encryption (FBE), which means that encryption is done on a file-by-file basis by default.
If Android no ...
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How to decrypt and mount Android devices?
In Linux, you can read data a device encrypted e.g. with LUKS by doing cryptsetup luksOpen and mounting the volume. What is the equivalent for this in Android, i.e. what specification for encryption ...
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Is it safe to store passwords in WhatsApp end-to-end encrypted backup?
So there is a WhatsApp group in which only I am present and hence I use the group to store my passwords by sending them in the group as chats. I then backup those chats using the WhatsApp end-to-end ...
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Encryption and deleted data
I have a galaxy S8 using "default password" meaning no startup password or secure start up.
The device is still encrypted by default so all data should not be recoverable after a factory ...
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Recover deleted file on phone using FBE
Suppose we have a phone that:
Runs Android 10.
Uses file-based encryption.
Suppose one of the files is deleted, but the phone is immediately turned off so as to prevent the deleted file from being ...
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Manually decrypt data from recovery-mode?
AFAICT, Android builds upon Linux' standard fscrypt as implemented in ext4 and f2fs.
I know my pattern and have access to a shell with any Linux program in it.
How can I decrypt /data manually, ...
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How to back up encrypted /data atomically in Android 12?
I accidentally upgraded my phone to Android 12 instead of a newer Android 11 and, to my dismay, it seems encryption was changed in a way that makes TWRP unable to decrypt my /data.
For backups, I ran ...
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Does Android Lolipop 5.1 get encrypted by itself upon first boot?
My doubts are,
Would an android device shipped with Lollipop 5.0 get encrypted itself upon first boot? I saw a lot of blogs saying Lolipop does not come with default encryption but in the official ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
