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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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Can I enable my fingerprint lockscreen whitout (!) enabling encryption

I like to regularly backup my data partition using TWRP. I noticed once I enable my fingerprint screenlock, TWRP is unable to access my data partition because Android 8.0 encrypts it from the moment I ...
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How to change the encryption key on (rooted) Android 9?

In Android 6, you could change the disk encryption key using the vdc command with vdc cryptfs changepw NEWPW In Android 9, you get a message, that raw commands are no longer supported. During ...
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1answer
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Attempting to brute force Android security pattern through TWRP via adb

Yesterday I somehow forgot the Android security pattern on my phone. Due to muscle memory I sort of know what it was, but can't figure out the true pattern. Therefore I'm attempting to brute force it ...
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27 views

Decryption Unsuccessful, doesn't prompt for PIN

My pme's encryption has been flaky recently: it would ask for the pin a couple of times and reboot before finally loading the OS. And I wasn't able to mount /data in TWRP ("decryption failed"). Today ...
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Just now updated my Twrp to latest version and now i have “decryption problem”

Device: Oneplus 5 Updated Twrp version: twrp-3.3.0-1-cheeseburger.img link Oxygen OS Version: 9.0.4 (latest) Yes i can normally use phone, but typing password in Twrp doesn't decrypt the phone. ...
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18 views

Encrypt a Note in Evernote

How do you encrypt a note in the Android Evernote app? I can only find a reference in their poor help that applies to Macs and PCs.
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1answer
48 views

Sony F5121: Forgot Device Encryption Passwort, locked bootloader

I forget the device encryption password for my F5121 (locked bootloader). Is there any way to hard-reset the device, so I can use it again (I don't care about the data on it)? I already tried some ...
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55 views

Android decrypt pin not accepted after Magisk boot.img update

I have a Xiaomi Mi A2 Lite and since the update to Android 9, I had troubles to root with TWRP & Magisk. The latest trial was based on the daisy_global_images_V10.0.3.0.PDLMIXM_9.0 images ...
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Data deleted after encrpytion - recoverable?

my device (Android 8.0) is encrypted with the default encryption (no startup password). As far as a I know, when I have data on my phone and factory-reset the phone, the data is unrecoverable, since a ...
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27 views

Hiw to encrypt nova 2i phone?

I have huawei nova 2i phone. I need to sell my phone but i want to encrypt that phone before giving it. I dont see any option inside the security setting to encrypt the phone.please help me.
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+50

Enabling File-Based Encryption/Direct Boot Android 9 OP3T

I am trying to figure out how to enable file-based encryption on my OnePlus 3T with Android 9 Pie. The developer options from Android 7 Nougat are not present on my phone. I have a custom ROM (Pixel ...
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Encrypted Storage when booting to LineageOS?

I'm attempting to flash LineageOS 16 to my Moto G(5S) Plus. I found an unofficial rom online and it appears to be installing just fine. However, when booting for the first time, the phone displays the ...
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129 views

Samsung Galaxy s10e requires password every few days, is it possible to disable safely?

Galaxy s10e, protected by a very long password and fingerprints. I specifically went for a very long password intending to only type it in after restarting the phone. In fact, the phone requires ...
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79 views

Install TWRP on encrypted device

I would like to install TWRP on an encrypted device to make a backup and maybe reinstall firmware. (Samsung SMT-530) The reason I wanna do this is because when restarting, I am able to enter password ...
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Does encrypting an Android phone also encrypt old, deleted files?

I'm going to be selling my phone soon. The advice seems to be to encrypt it then performs a Factory Reset. But does the ​​whole ​​internal memory get encrypted, or just the current, visible files? If ...
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1answer
155 views

Encryption Unsuccessful even after system backup restore

The steps I performed: Flashed TWRP with Odin Made backup Flashed LineageOS 14.1 with TWRP Flashed SuperSU with TWRP Flashed Open GApps with TWRP There was a problem, Google Play Services kept ...
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1answer
656 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 ...
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0answers
172 views

Decrypt userdata files using device and complete filesystem dump

My Oneplus 5 got softbricked (touch input completely stopped working some time after an update and nothing could be done about it). This happened soon (a couple of weeks) after it was updated to ...
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SD card not encrypted

I have an android device lg v30 and recently I purchased an sdcard for it. Naturally, I enabled encryption on the sd card (full encryption). Encryption completed successfully. I used the card for ...
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842 views

How to Decrypt Huawei Safe File?

I am using Huawei Nova 3i and I have forgotten my password for File Safebox. But here I can see all my files encrypted. It would be great if I can decrypt them so that I can get back all my files. ...
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2answers
3k views

TWRP decrypt password

TWRP 3.2.3 asks for a decrypt password at startup, which I never set. Ignoring with 'cancel' leads to the main menu, but then the internal storage is marked as 0 byte (e.g. when trying to backup), ...
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Which component of the Android protocol stack performs cellular encryption?

I understand that the SIM Card plays a significant role in generating keys for the encryption and decryption of cellular traffic, but are these keys passed to the Android architecture so that it can ...
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31 views

Android S8-MAX device encryption

I have an android s8-max device which appears to be running android version 8.1.0. In the security it doesnt give me an option to encrypt the device, as on power up i want to supply a password before ...
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1answer
318 views

Tell TWRP to decrypt for ota

Old versions of TWRP would prompt for the password to decrypt the phone prior to performing an ota, however new versions are able to apply otas without requiring decryption. This is great in practise ...
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1answer
104 views

If /system partition is never encrypted (even in “full-disk” encryption), how is it protected?

It seems that Android's "full-disk-encrytpion" is only concerned about encrypting the data or internal storage partition. It says: Full-disk encryption is the process of encoding all user data on ...
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0answers
341 views

Unable to Decrypt SD Card after reboot my Samsung s7 Edge?

I moved my important files in Encrypted SD card from my Phone & removed SD card for reboot the phone. After complete the reboot i am unable to find my files in encrypted SD card. When i put my SD ...
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0answers
103 views

How to access an encrypted external SD card with all apps?

I have encrypted both the device and the external SD card of a previously unencrypted Samsung phone running Android 6.0.1. After encrypting the SD card, apparently some apps can not access the files ...
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56 views

Running an Android app in an encrypted container

Is there a way to encrypt apps (and appdata) on an Android device. I use an Android 7.1 device and don't want that there is any APP or especially Malware which can spy on appdata like my WhatsApp data....
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1answer
86 views

Android Encryption Key in windows manual backup

I did a factory reset and then realized that I didn't decrypt my SD Card. I know that the data is probably lost, but I made a complete copy of the Internal Storage connecting the Samsung J5 mobile to ...
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1answer
1k 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 ...
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1answer
278 views

How to restore an encrypted SD card backup after factory reset?

I did a factory reset and then realized that I didn't decrypt my SD Card. I know that the data is probably lost, but I did make a complete copy of the Internal Storage. Is there a way to copy back ...
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2answers
237 views

Make a “adb shell” batch file?

Is a way I can make a batch file that'll run "adb shell twrp decrypt 0000" and go all the way to 9999?
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0answers
562 views

How to read (or restore) files on encrypted SD card after update to Android Oreo?

My situation I have been using the encryption of my Android phone’s external SD Card on a Samsung Galaxy J3 (2017) Duos (SM-J330F) ever since I got it. I have recently updated my OS to Android 8.0 (...
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255 views

What kind of encryption is required for LineageOS on Xiaomi Redmi Note 5 (whyred) to boot?

Having my Redmi Note 5 stuck at the LineageOS logo, I tried different ROMs like Resurrection Remix OS. They work well. After some reserach, I found a hint to some kind of encryption in the LineageOS ...
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0answers
66 views

My android isn't recognizing the password to “use the encrypted device memory.”

I've been through a number of steps attempting to save my device data. I previously asked this question. Is it possible to save an encrypted data partition so that I can decrypt it later? I couldn't ...
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68 views

Is it possible to save an encrypted data partition so that I can decrypt it later?

I have a rooted samsung galaxy s4 sph l720 with an encrypted data partition. It's currently a soft brick. I'm confident I could wipe the device and start over from scratch but then I'd lose everything ...
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79 views

HTC one m8 data corrupted

I noticed many people have this exact same problem but no one ever said if they got through with it. My phone managed to encrypt itself, i went to get my charging port repaired and when the phone was ...
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How can I use the fingerprint sensor on my unencrypted phone?

Searching for the cause of decreased screen-on time after updating the firmware on my phone (the standby time is generally excellent), I realised it was not encrypted before, and as I had to change ...
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0answers
2k 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 ...
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0answers
278 views

Decrypting Android Nougat adopted storage

I changed my phone from a LineageOS (Android: 7.1.2 - LineageOS: 14.1-20180704-NIGHTLY-FP2) to regular Android and used my SD-Card on the first start-up of the new phone. The new phone (Huawei Mate 10 ...
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0answers
188 views

Can a Whatsapp account be spoofed?

I've had a big privacy concern lately regarding the safety of my Whatsapp account. Ever since my phone was stolen from me and returned by certain malicious individuals, I've had the weirdest feeling ...
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1answer
314 views

Device encryption fails, gives no error and just restarts

Got a redmi note 5 pro, some time ago and I have been fiddling with it. I tried to encrypt the device when it ran Resurrection Remix OS, for some reason, it appears to be working and then less than 30 ...
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0answers
37 views

Removing Encryption from Android Backup

I made a backup of my android using twrp recovery, at that time I had setup PIN as password in the device. After that, i installed some other custom OS, but later thought of switching to it, ...
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1answer
559 views

Remove boot password from the command line

I just tried to remove the boot password on a Android Oreo device using the following command: $ vdc cryptfs changepw password original_password "" 200 5478 0 Even though the status indicated ...
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0answers
331 views

`Decryption Unsuccessful` when trying to restore user data

After an update I either forgot my log-in pattern, or the update broke it. I tried numerous versions of what I remembered my pattern to be, but I exceeded the maximum number of allowed tries, and the ...
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1answer
3k views

How to fix “Encryption unsuccessful” and bootloop issue on Andriod 8.1?

My Nexus 6p boot looped and is showing "Encryption unsuccessful" error with a RESET PHONE button. Resetting the phone is not helping and it shows the same "Encryption unsuccessful" error again. ...
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446 views

Resurrection Remix is stuck at the encryption screen

I have a Motorola Moto G4 Play phone. I flashed Resurrection Remix 6.1 official build (based on Oreo) and TWRP 3.2.1. Then, I installed Magisk and allowed the root for apps (inc. terminal emulator) ...
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115 views

How APK with fake password protected works

I came across an Android application which runs normally on the device but raised an error when I tried to unzip its APK - it requires me to provide the password in order to decompress the APK file. ...
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234 views

My HTC phone wont let me put password in to decrypt phone - no keyboard

Keyboard does not come up to put code in. Anyone know what to do?
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1answer
330 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 ...