Encryption is the process of transforming information to make it unreadable to anyone except those possessing special knowledge.

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Problem during the encryption

Some times ago I had some problems with android decryption, so i followed this to solve my problem Removing encryption from recovery (recovery --wipe_data --set_filesystem_encryption=off). Now I am ...
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1answer
49 views

Android Decrypt SD Card after Factory Reset

I have a Galaxy Note2 device, Android 4.4.2, in which I have my extCard encrypted using the settings option, for a force majore I had to reset factory settings. now i can't access my important files ...
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29 views

Why is Android checking my SD card at bootup?

I have a Samsung Galaxy S5 phone running Android 5.0 (.something, update level 2016-03-01) and a 64GB Type10 SD card inside for extra storage. The phone is encrypted and works fine, today I decided to ...
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33 views

How do I recover data from an encrypted phone which will not boot and which is 'oem locked'?

My OnePlus2 phone keeps rebooting and won't give me access to the Android OS after a recent update. I now want to recover my encrypted data and reinstall the OS. After reading around on the web I ...
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1answer
29 views

What is the minimum battery level required to start Android encryption?

The encryption screen reads "Charge your battery and try again". What is the minimum battery level required to start the encryption process?
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18 views

How to decrypt emails with k9?

I just installed k-9 mail with open keychain. K9 recognizes open keychain. In cryptography settings I chose open keychain as pgp-provider. But when I want to read an encrypted email it just shows me ...
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1answer
91 views

How to resize the /data F2FS partition

I've wiped all partitions from my Motorola XT1040 with the TWRP recovery, and installed Cyanogen 13 on it. Then I run into problems when trying to enable Encryption. The phone just restarts and ...
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0answers
24 views

Unsuccessful Encryption

I began encrypting my Xperia Z3 and as soon as the process started, the phone turned off and I was greeted with the following screen: The phone was rooted beforehand and I still have access to a ...
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19 views

Lock/sign Android OS from being changed

I want to set up an Android device in a way that all data is encrypted and the OS cannot be changed. I thought about fully encrypting all files including the system partition (like BitLocker). However,...
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13 views

Has all my data really been deleted from my HTC? [duplicate]

I recently sold my HTC One A9 to a mutual friend. It had been upgraded to Android Marshmallow 6.0.1 so I was using the HTC on that for a while. Before I sold it, I did around 3 factory resets to ...
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37 views

Device Encryption Fails, but no error too

I have the same problem as mentioned in this thread: Device encryption fails, but no error I have a Samsung Galaxy S5 Mini (4.4.2) and every time I try to run the encryption, it reboots with no error ...
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94 views

Password not working / changes after update from COS 12.1 to Cyanogen OS 13

I've encrypted my OnePlus One a long time ago. Now I want to perform the update with the new released Cyanogen OS 13. The problem is that the phone don't want to validate the password from the ...
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28 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
50 views

Mounting encrypted partition from PC - is there anything I can do?

Okay, so basically I have the same problem identified here, except instead of a broken screen, I accidentally broke the UI with this bug. And all I want to do is mount the encrypted partition so I ...
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1answer
54 views

My device is encrypted. Does flashing a new software ruin it? Can I get the decryption key of my device?

I have Lollipop 5.11 (Note 4), and I have the device encrypted. Will flashing CWM or TWRP or a new software (like Marshmallow) ruin my phone? I would like to add the device is still not rooted. ...
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0answers
34 views

Change android full-disk encryption algorithm

I've recently managed to get data on my device encrypted. However, after I learn that Android full disk encryption uses dm-crypt underneath I've decided to go a bit futher and replace default ...
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75 views

android boot with forceencrypt take a long time [closed]

building cm-13.0 for oneplus bacon here. i want the rom to encrypt on first boot. so i changed the flag in Android fstab file.(device/oneplus/bacon/rootdir/etc) from encryptable to forceencrypt ...
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1answer
34 views

Android Encryption

If I encrypt my phone i know it will protect my data, however if for example my phone is stolen or lost, the person with it, would they be able to just hard reset it and use it or resale it, or ...
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1answer
435 views

How do I enable Direct Boot feature on Nexus 6 running Android N Preview 1?

According to these instructions there should be a "Convert to file encryption" option in Developer settings, but it's not there on my Nexus 6 running stock N Preview 1. When I try to search for it in ...
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0answers
32 views

Can I use encrypted phone as a means of secure storage?

I have an encrypted Android phone. Can I mount this device to my computer and save files to it as a means of secure storage?
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0answers
36 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 ...
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2answers
301 views

Hide media on external sd card, lollipop and above

I want an app that can hide/encrypt selected pictures and video on the external memory card without moving them to internal storage where space is at a premium. This is the problem with Keepsafe and ...
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1answer
405 views

Android Marshmallow encryption of external SD card

When I use adoptable storage on my device, then my SD card will be encrypted. Is there a way to get the "encryption key" with root access? So if my phone dies, I can still retrieve my data from the ...
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1answer
77 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 ...
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108 views

How can I enable encryption on Android 5.1 if setting not available in Settings > Security?

I have Android 5.1 I have been reading that it is possible to enable encryption of the disk. It seems my phone manufacturer has removed or hidden this option in my phone.
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459 views

decrypt data-partition in twrp

I messed up my phone trying to get open-gapps working on CM 13. I can't even get into my OS only into recovery mode. I tried flashing several CM-Versions, but that doesn't change much. I think the ...
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140 views

Galaxy S5 (Cyanogenmod 13) Bootloop on Decryption

My Samsung Galaxy S5 has Cyanogenmod 13 installed on it; one of the recent nightlies, March 14th 2016 I think. I attempted to encrypt the device. It took a few minutes before rebooting. Now my phone ...
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1answer
88 views

During Android Encryption, I lost my device keyboard and OS ask me to enter password?

I have Android phone with OS version 4.4, I start encrypt my phone and it started very well. After an hour and restringing several time the device prompt me to "Type password to decrypt storage". Her ...
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72 views

Android (HTC M8) has “forgotten” my SD Card is encrypted. Help!

Having a bit of a stressful problem. My HTC m8 (Marshmallow) is encrypted, as well as the external SD card. All my photos are on the SD card. I have lots backed up but I'm having a great trip to NYC ...
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89 views

Phone asking for text-box password when use pattern after encrypting

I just encrypted my Moto e 2nd generation LTE running cyanogen mod 12.1, I rebooted to test it and it was just fine but now it is asking me for a text password which I don't understand! Please can ...
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3answers
156 views

How is it that I don't need to enter my password to decrypt my phone?

I understand that my Android phone is encrypted, however I never input any password to decrypt the phone. If the key is stored in some hardware component but is automatically retrieved every time my ...
12
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376 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 ...
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2answers
635 views

Does full device encryption protect my data from Google and the government?

Apple recently made waves within the tech community by refusing to comply with law enforcement in regards to accessing encrypted user data. Their statement was that they do not have the technical ...
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46 views

Trim not supported in data partition?

I have a rooted Lenovo a369i. I use lagfix(fstrim) to trim partitions. Previously it was working well with /data but after I encrypted my phone it doesn't. I decrypted my phone by formatting. But now ...
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65 views

SD card encryption

The way Android goes about encrypting data on SD cards is vague to me. I've read about ASEC files, OBB files, /data/misc/systemkeys/AppsOnSD.sks, and keystores. I know that keys used to encrypt SD ...
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103 views

Encrypting files in android [closed]

I am trying to develop an app in which I could give users option to encrypt files. The scenario is : Users would select files or folders to encrypt. They would be presented with a EditText Box in ...
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616 views

Is my Xiaomi Redmi Note 2 encrypted or not?

I have a Xiaomi Redmi Note 2 running MIUI 7.1.2.0 (latest OTA update, based on Android 5). I encrypted it. Then I restored to factory settings, first from the Android menu then from the recovery menu (...
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1answer
368 views

How can I decrypt or view images encrypted in Sd card, in other phone?

I had enabled Sd Card Encryption in my "HTC Desire 816 (d) phone in July 2015, after that I had taken backup of "Phone memory" in my computer, But few days back my phone got stolen. Due to which I m ...
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2answers
28 views

How do I safely “copy” my gpg keys from kgpg on Linux to an Android app like openkeychain?

The title says most of it. I have a key pair setup on kgpg running under Kubuntu 12.04 Linux on my notebook. My smartphone (Galaxy S3) has no SD card slot. I want to be able to transfer files between ...
6
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1answer
68 views

Global readable private keys found in storage/emulated/0/data - Possible security risk?

I found following global readable files in /storage/emulated/0/data/IMS: cert.pem private_key.pem I have full access to this files with my file-manager/text-editor, so I think any other app will ...
0
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1answer
183 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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0answers
425 views

What is the command to encrypt Android rooted phone directly from the command prompt?

I want to encrypt my Android phone which has an engineering/userdebug binary. Generally it takes around 1 hour, but I heard it can be directly encrypted it with the adb command-line tool. So how do ...
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0answers
41 views

How do I mount devices so that they are accessible by regular user?

I am using luksmanager to mount my file based luks container. It is mapped to /dev/mapper/luksfile. It works, and it works great except that only root can see the files. I successfully used this on ...
5
votes
1answer
182 views

Micro SD Card Not Detecting

I am Using a Android phone Sony Z3 (5.0 - Lollipop), the Issue is My SD Card My Micro SD Card is not detecting in mobile and PC Let me tell u clearly what i have done step by step? Encryption (...
2
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1answer
485 views

What is Marshmallow encryption protecting?

I installed CM 13.0 onto a Nexus 6, which includes Android 6.0.1, and I have set a PIN. The Settings UI reports that my phone is encrypted. However, my phone is able to boot all the way to the lock ...
3
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0answers
778 views

TWRP: “E: Unable to mount storage” after encrypting phone

I get E: Unable to mount storage error in TWRP after encrypting my phone. CyanogenMod 12.1 ROM (based on Android 5.1.1, my phone is HTC One M7) in use, CM uses AOSP encryption that is supported by ...
4
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1answer
59 views

How do I recover lost data on a damaged SD card that was encrypted by my tablet?

I encrypted my 64 GB SD card using my Samsung Galaxy tab 3. I don't know what happened to my SD card but when I turn on the tablet, instead of allowing me to use the card, I get the following messages....
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141 views

Where is stored type lock (if users have to enter a password/SIMM or a pattern)?

I'm working on source code of Lollipop. It seems the type lock (if users have to enter a password/SIMM or a pattern) is stored in a database, /data/system/locksettings.db. This database is located in /...
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75 views

Mirroring screen without booted phone

I'm a little paranoid about security. So I've encrypted my sd card and my whole phone with the android 4.2.2 encryption option. When I boot the phone it asks me for a (looong) password to decrypt the ...
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80 views

AccountManager: how can passwords be stored and retrieved without also storing the decrypt key?

Can the Android AccountManager be hacked and its account passwords retrieved? I mean, how is the decrypt key stored in a way that is safe from being retrieved by password-spoofing software? Is special ...