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Questions tagged [disk-encryption]

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38 views

How do I check if my Android SD is encrypted?

I can't remember if I encrypted it already or not. How do I verify that? Under SETTINGS - SECURITY - ENCRYPTION, there is just "Encrypted phone", but nothing related to the SD card. The SD is NOT ...
0
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1answer
60 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 ...
1
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1answer
417 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
347 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) ...
3
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1answer
817 views

How can I find out if my device uses FBE or FDE?

Assuming that I have full access (root if neccesary) to a device running vanilla Android 8.1, how can I know if it is using Full Disk Encryption or File Based Encryption?
3
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1answer
157 views

Decrypting manually Android 4.4.2 partitions pulled from phone (SM-G313HN)

Way how I got to this point is that my phone somehow had restarted in my pocket and was asking for password which I entered but upon entering password it restarted so I was basically stuck in bootloop....
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2answers
102 views

What's the point of encryption with 3x3 in OnePlus 5 if it has 409104 combinations meaning it can be cracked under a second with any modern processor? [closed]

I am not sure what I am missing, but decryption the sdcard should be as easy as opening it if it it that few possible combinations. So what's the point of it? To clarify I mean booting into recovery ...
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0answers
294 views

How can I reboot an encrypted Android 7.0 in safe mode?

Folks, I have a Lenovo Moto C Plus (I know, sh*tty phone, but I'm Brazilian and good ones are pretty expensive here) running stock ROM (7.0) and I use full disk encryption and unlock the phone with a ...
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0answers
156 views

Android 5.1 full phone encryption stuck 12+ hours in

Similar thread to this one. None of the answers were helpful. It's an unrooted Android 5.1. The device has been factory reset. Once I begin the encryption process, screen is stuck with displaying ...
4
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1answer
91 views

On devices with encryption enabled, can any apps start before the PIN is entered?

On devices with encryption enabled that require you to enter a PIN before the device finishes booting, can any apps (including built-in ones like chrome or gmail) start before the PIN is entered?
1
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1answer
172 views

A way to enable data encryption by default (device to be encrypted on first boot)

I did some research on data security that Android has in it's implementation FDE and FBE. I have a clear picture on how both work, but I need something a little different. What is the best way to ...
0
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1answer
880 views

Do android phones have hardware chips for encryption? If it's software only, then what is the performance/battery impact?

Do android phones have hardware support for the OOTB full phone encryption or is it entirely done in software? If there are phones which have hardware support for encryption then where could I find a ...
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2answers
2k views

How do I encrypt a new SD card?

I'm on Android Nougat with an encrypted phone. I added a new SD card but cannot find an option to encrypt it too. How do I go about encrypting the new SD card?
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0answers
826 views

Encryption in Vivo android phones

Vivo phones like Y53, does not have any option for full device encryption or SD card encryption. Is it enabled by default? Are there ways to do it using Third party apps?
1
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1answer
571 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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0answers
92 views

How can I allow a second user account to unlock my device after a reboot?

I recently damaged the screen on my phone and am sending it in for repair. The repair shop I am using wants to be able to access certain features of the device, like the camera, Wi-Fi, etc, in order ...
2
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0answers
328 views

How to decrpyt & extract data from encrypted removable SD card from another device?

My Xperia z5 died for an unknown reason and I had to send it for repair. I had an SD card inside for my pictures and kept it home. After a longer time, Sony sent me a new phone. Happy, I put back my ...
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1answer
66 views

Encryption state after changing PIN

I enabled device encryption but android didn't gave me the chance to choose a new password instead it used the lock screen's. I came back to screen lock settings and changed the password and ...
2
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1answer
819 views

Stuck in boot after encrypting

Device Name: Lenovo K3 Note OS: Lineage OS 14.1 (Android 7.1) Recovery: CWM ; Accessible Bootloader Status: Unlocked and Accessible Root Status: Rooted Accessible via adb I used the Android's ...
2
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1answer
1k views

Decrypt /data without formatting

As the title suggests, is it possible on Android N (7.0/7.1)? I Googled around but all solution suggests that I format /data. And if I keep using the stock ROM without flashing Forced Encryption ...
6
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1answer
2k views

Nougat: How to use Full Disk Encryption instead of File Based Encryption?

Nougat comes with File Based Encryption (FBE) and Direct Boot. I would like to return to Full Disk Encryption (FDE) instead (or in addition to FBE) and make sure the data partition is fully encrypted ...
2
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1answer
4k views

How to Have Device Encryption With Magisk Systemless Root Installed?

I am currently owning a OnePlus 3 64 GB device rooted with Magisk v13.0 (96f8efc) and MagiskSU's systemless root, and using the following ROM, which is based of Android 7.1.2 (Lieanage OS): ...
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1answer
85 views

Undo failed encryption?

I am on Android 6 (AOKP), TWRP installed, and Xposed/Xprivacy. I wanted to encrypt the device from the settings dialog but apparently that failed - it just sits there with the boot animation doing ...
1
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1answer
3k views

Moto G3 (android marshmallow) not detecting SD card anymore (solution?)

About a month ago the Moto G (3rdGen) of my wife was not able to recognize the SD-card 32GB Trancend premium 400x (which was formatted as adoptable storage) anymore. On this card were very important ...
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0answers
157 views

Transfer adoptable SD card to another ROM

Is it possible to use an adoptable SD card on another ROM, by copying the encryption key located at /data/misc/vold/*.key? According to the Android documentation : .. Keys are associated with ...
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0answers
52 views

Benefit of using Android encryption if my files are in sdcard?

I tried using Settings > Security > Encryption but found out it did not encrypt the sdcard. My question now is, what kind of data is being protected by Android's built in encryption ? Is there ...
3
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0answers
98 views

Where are the TEE's keys stored and under which conditions are they reset?

Context: full-disk encryption in Android 6.0, specifically key derivation and storage. I have a device running Android 6.0 with full disk encryption. I need to make a backup of the device, wipe the ...
7
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0answers
342 views

Is it possible to crack encrypted device?

I have device powered by Qualcomm MSM8974AC Snapdragon 801 cpu and running Cyanogenmod 13 (6.0.1 android) rom with unlocked bootloader and TWRP (3.0) recovery. ROM has security patch level December ...
0
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2answers
399 views

Full Disk Encryption on Google Pixel XL vs Google Nexus 6P

I am wondering if I have the same full disk encryption with a Google Pixel XL as I did with the Google Nexus 6P. On the Google Nexus 6P it would not load anything before being prompted for a password,...
1
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0answers
356 views

Smart Lock, and multi-factor authentication?

I am using Marshmallow, and I use the built-in encryption mechanism. Typing my password every time the screen locks is a pain. I would like to leverage Smart Lock to have the following ideal ...
1
vote
1answer
4k views

Decrypt android device (CM13/6.0)

I encrypted my device on a lark, but it affected performance too much. I want to decrypt my device, but the place where I could previously initiate the encryption now just show "encrypted". I tried a ...
1
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1answer
395 views

Formatting a Corrupted microSD

Received a 128gb Samsung Evo+ microSD card that had originally been encrypted or used as adopted storage on another android device. Current partitions, gpt table /dev/mmcblk0p1 android_meta 16.00 ...
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1answer
4k views

What is Direct Boot or File Encryption in Android N

The title says it all What is it and how does it help users? While this is a self answered question, additional inputs especially from hands on experience are welcome
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0answers
374 views

Decryption unsuccessful after enabling a PIN lock when full disk encryption is already activated

I have a Moto G3 with full disk-encryption enabled when I created a PIN lock and after that when my phone was restarted I got the decryption unsuccessful message and I couldn't boot it anymore. I ...
5
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1answer
1k views

How does Nougat encryption work technically?

I found the explanation for Android M, how does it work now in Android N? Bonus question: is it right to say that the encryption in N is weaker than the one in M? Because the OS can now be started up ...
11
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2answers
15k views

Is it possible to mount on a PC an SD card that has been encrypted by an Android Marshmallow device?

I have a Samsung Galaxy S5 duos with stock Android Marshmallow, and I'm considering encrypting my SD card to prevent access to its contents in case I lose my phone. The main reason of not doing this ...
3
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2answers
108 views

If I rarely turn off my phone, are there any benefits to encryption still?

If it becomes the case that my phone is stolen, I would like to make it as difficult as possible, if not impossible, for my data to be accessed without my permission. I understand that Android has ...
3
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1answer
4k views

How to resize the /data F2FS partition

Context: I wiped all the partitions from my Moto G device with the TWRP recovery and installed Cyanogen 13 on it. Then I had issues when enabling Encryption: the phone just restarts but does not ...
2
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0answers
239 views

Encryption key of android

Is it ever possible to get a backup of my Android smartphone's decryption key (I have my /data partition encrypted) in case something goes wrong? My phone is rooted. I have Galaxy Note 4 SM-N910C.
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0answers
246 views

Reasons for full disk encryption differences between Nexus & Samsung

I have Nexus 7 and Samsung Note 4. I'm guessing that they are representative of Nexus and Samsung Android devices, respectively. Regarding full disk encryption, Nexus full disk encryption is ...
1
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2answers
4k views

Cryptfs : unmounting /data failed: Device or resource busy

I am trying to encrypt my rooted Nexus 5 (running CyanogenMod 13/Marshmallow). Here is how I am doing: With the phone running and connected to USB, make sure that /mnt/asec/ is empty Long-press the ...
7
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0answers
117 views

Android 5.0 FDE stopped asking for password during boot

The settings still says encrypted, but it no longer asks for passwod during boot. Lockscreen password is still there. How did this happen (bypassing encryption)? Google search indicated this is not ...
1
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1answer
360 views

Online Nandroid Backup and later restore of an encrypted Android L 5.1 device

I am using an Android One phone with rooted Android 5.1 and the Online Nandroid Backup application to do live (o)nandroid backups. I am also using the built-in encryption, which encrypts the /data ...
16
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2answers
691 views

Canonical explanation of Android Encryption and Vulnerabilities

Note: Well, the bounty expired and one possible reason could be effort required to address as I gather from comments. Seeing the number of upvotes, it appears to be of interest to others as well. I ...
3
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1answer
576 views

Missing encryption

I have recently bought an Android smartphone (Doogee X5) with Android 5.1. But I'm having difficulty locating full disk encryption option. There is nothing in security and storage menus. The closest ...
0
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1answer
376 views

CM12.1 on Galaxy S5 in endless boot after encryption enabled, then pattern changed

As written in the title, I have a Galaxy S5 (SM-G900F) with CyanogenMod 12.1 installed ("klte"). Everything worked semifine (apart from occasional reboots), and after a while I decided to encrypt the ...
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1answer
19k views

How does Marshmallow encryption work technically?

I just installed Marshmallow on a Nexus 5 through a pushed update. I am confused about the way encryption works. I have good technical knowledge of encryption on computers. I would like to gain ...
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3answers
8k views

Nexus 5 full disk encryption stuck 12 hours in?

I have loved my Nexus 5 since it was released with KitKat, and last evening I decided to enable full disk encryption, which I expected might take around an hour or so. It's now about 12 hours in with ...
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0answers
69 views

Is the /data dir encrypted when android encryption is enabled?

I am interested to know if the /data dir is encrypted when android encryption is enabled? Specifically, I have an app that utilises a native shared object library I believe this file resides in /...
0
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2answers
2k views

Device in Bootloop using encryption

I have yu yureka android device which has octa core snapdragon 615 processor, 2GB of ram, 16GB internal storage. Recently I migrated to snapshot release of Cyanogen Mod 12.1 (android 5.1) plain ...