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

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3answers
134 views

Does Vaulty app use AES encryption?

In the knowledge base of the Vaulty app to answer this question: Is Vaulty safe? they say that they modify the files and the files are safe. I wonder if Vaulty is really safe and specifically whether ...
7
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3answers
1k views

Do I have to backup Titanium Backup's keys?

I just bought Titanium Backup and set up a scheduled encrypted backup of user+system apps and data, followed by Dropbox sync. Assuming I remember the passphrase, is all the data required for ...
1
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6answers
9k views

Does encrypting an Android device add any real security benefit over a key-lock?

Would encrypting my Android device make my data any safer in case of theft? It seems to me that since the encryption key necessarily is identical to the PIN code or password used for the key-lock, ...
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0answers
40 views

Did my tablet ever start the encryption process?

Before I went to bed yesterday I switched on encryption on my Kindle Fire HD (Cyanogen KitKat ROM), and ended up seeing this screen: Looking around, apparently it's supposed to also have the text ...
2
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0answers
74 views

Is 4.0+ Disk Encryption compatible with Custom Recovery/KitKat ROMs?

There is a prior question that answers this for Android 3.0 but some stuff I have read elsewhere has said that installing TWRP will not work with encryption in more recent versions of Android, so I ...
2
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1answer
8k views

How to downgrade from Android 5 to 4.4.4 on an encrypted phone?

After certain troubles with Android 5 (see How to fix file permissions on Android 5 so that a certain app can access certain files?) I decided to go back to 4.4.4 on my Nexus 4 for the time being. ...
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1answer
3k views

Cyanogenmod: Encryption unsuccessful

I encrypted my phone. That worked fine. Then I installed another version of Cyanogenmod. This cannot decrypt the data (which is OK: There is no important data on the phone). It tells me to perform a ...
0
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0answers
125 views

How to manually intall an OTA zip on an encrypted HTC One GPE?

I have a HTC One that was converted to a Google Phone Edition. It's full stock, no root and original recovery, and received the 4.3 and 4.4 OTA updates without a problem. I encrypted my phone, and ...
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0answers
99 views

Boot to lock screen with encryption

After upgrading to Android 5 on my Nexus 10, I've now gone the extra step and enabled encryption. One thing that bothers me though: It doesn't boot to lock screen any more. I get asked my lock ...
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2answers
175 views

R2Mail2 - GnuPG encrypting email to a different email address than in the public key

I have a friend's public key with the associated email address bla@bla.com. I would like to use the key to send an encrypted email to the email address not@not.com. Is this possible in R2Mail2 for ...
22
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2answers
6k views

Undo Android 4.0 (aka Ice Cream Sandwich) Full Disk Encryption

Just upgraded my Nexus S to Android 4 aka Ice Cream Sandwich. Was looking through all the new features, and decided to enable encryption, which worked (and is working) just fine. Now I'm wondering if ...
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0answers
36 views

Installing Certificates on an Android device

From my understanding, to connect to a certificate-based VPN, one must download say a p12 file onto the Android device, then use "Install from Storage" in order to install the certificate and use it ...
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0answers
39 views

How to stop beeping noise from the unencrypt device screen

I have encrypted my phone, and set it so that it reboots each night - this works fine, however after it reboots, it asks for my password to unencrypted the device - still fine, however after a bit, it ...
0
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0answers
114 views

encryption and fingerprint unlock

Can you use the finger print scanner to unlock when the phone is encrypted? Everywhere I've looked it says you cant do it but I encrypted my phone and i can still use the finger print unlock when ...
1
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1answer
895 views

S5 Phone and SD Card Encryption: Do I need to enter in password twice?

I have a Samsung Galaxy S5. If I encrypt the phone and the SD card, presumably with the same PIN/password, do I need to enter in the PIN two times to access the SD card? I see that encrypting the ...
0
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0answers
107 views

My Device has Randomly encrypted itself???Restore data?

After flashing Ubuntu touch my whole device encrypted itself i don't know the pass code I cant wipe nor restore a backup nor backup what can i do to save all my data. How can i restore this and my ...
0
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1answer
166 views

Android Lolipop broke my enyrpted nexus 7 (2012)

I just received the update and now my device does not boot any more. I comes to the point where I have to enter my encryption password. The first time it did this it said: “Unfortunately your ...
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0answers
44 views

Encrypting Galaxy S3 with custom recovery

I have installed CWM recovery long ago to root my device. Today, I want to encrypt storage using Android's built-in device encryption. I set the lockscreen password, then confirm the operation but ...
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2answers
380 views

How do I re-enable swipe to unlock?

I recently encrypted my Android 4.4.2 device (S4 Active) and have now unencrypted it. However the only options I still have to unlock my phone are PIN and Password. When I attempt to change it it now ...
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0answers
60 views

Security of Android cryptography in versions < 5.0 against government agencies

Recently, both Google and Apple announced their new OSes encrypt the device by default. This caused a lot of complaints from government agencies. Let me quote an article ...
0
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1answer
318 views

how to backup files from an encrypted SD card for upgrade

recently bought a new SD card and I want to transfer the files from my current one to the new card. However, the files on the current card are encrypted and I have no way to copy them. I need some way ...
0
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2answers
3k views

How to fix a black screen (bricked) after rooting an encrypted device

Phone: Samsung Galaxy S3 (GT-I9300) Per work policy to add an exchange account I had to encrypt my phone. After doing so, I needed to root it to create a swap partition as it was constantly running ...
0
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3answers
4k views

Decrypt Samsung S3 Phone

I have recently encrypted my S3 to allow me to get work emails, but I have now decided against this as it has caused the phone to run like a dog. When I attempt to decrypt the device it says I need to ...
0
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0answers
89 views

Loss of internal memory (encrypted) after swapping SIM card

To be able to install the e-mail client to receive my job e-mails on my cell phone, I had to encrypt its internal memory. Everything was working fine, until the day I swapped the SIM card for a minute ...
0
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1answer
1k views

I encrypted my phone (samsung S4) of which i dont remember the password. Need help to unlock it and save the data

I am using Samsung S4. I can't remember the password i setup while encrypting it. Is there a way to unlock the device ? If it cant be unlocked how do i factory reset the device or i'll have to go to ...
0
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3answers
1k views

Encrypted Sony Z1 Compact stolen - will it be possible to reset and reinstall phone without PIN code?

Today my Sony Z1 Compact Android phone (4.4 Kit Kat) is stolen. Bad luck, but nobody's hurt and I'm quite sure my insurance will cover this. I've encrypted the phone and external SD card. Now this has ...
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0answers
235 views

How can i encrypt “/storage/emulated” with terminal commands?

I have encrypted my Android device in the terminal with: su; vdc cryptfs enablecrypto inplace PASSWORD During boot the following message appears: Type password to decrypt storage On which ...
3
votes
2answers
30k views

Ways to remove android device encryption

Since I still encounter issues with modified boot images and recovery images I want to remove the device encryption from my Nexus 4 (running 4.3). I known that there is no "official" way to to this ...
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0answers
65 views

Sudden Encryption, No recovery mode

My girlfriend's phone (A Samsung Galaxy SII) is now stuck at an encryption screen. When you turn it on it wants a password, problem being we never encrypted the phone. It was rooted, if that matters. ...
0
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2answers
766 views

Does encryption, factory reset, encryption make a safer used phone?

I recently purchased a used Moto X. I know the person I bought it from so I'm not terribly worried but here is my idea to shore up the security on a used device. Don't put in your SIM card or log ...
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0answers
95 views

How to disable visible password feedback on the decryption screen of encrypted devices?

How do you disable visible password feedback on the decryption screen during boot (for encrypted devices)? I have unchecked "Make passwords visible" under Settings/Security/Passwords but this does ...
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0answers
57 views

How to obtain crypto header and footer from Nexus 5 Android 4.4

I'm interested in how to find the crypto_header and crypto_footer for disk encryption on a Nexus 5. A lot of articles have them for specific devices and I was wondering if there was any information on ...
2
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2answers
717 views

Recover data from encrypted SD card

I have an HTC Butterfly phone and what I did was I ordered a new SD card with much larger memory. I had my previous card encrypted already and took that out and inserted my new card in. The phone ...
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2answers
92 views

Any way to auto-update cyanogenmod with encryption enabled?

I've been enjoying cyanogenmod a lot, but the auto-updates don't work, since I encrypted the phone. I'd like to have both, if possible, even if there's a bit of work involved. Is there any fix / ...
1
vote
1answer
126 views

Is there a way to map/translate a pattern-lock to a numeric PIN?

I just encrypted my Moto X (Gen 1) (KitKat 4.4.4) using the default encryption option from the Settings > Security menu. After the encryption process finished, it asks me, "Type password to decrypt ...
1
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1answer
5k views

Encryption precautions on android

So I want to encrypt my phone and my SD card. What are the precautions should I have? What if my phone doesn't work anymore. Can I restore the data again? What should I do in order to make sure that ...
3
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0answers
351 views

Can you change the runtime on an encrypted phone (KitKat)?

Nexus 5 owner here. Basically, I encrypted my phone a while back while on Dalvik Runtime and recently wanted to give ART a try again (to check app compatibility). The problem is that when I set ...
33
votes
3answers
3k views

Encrypt the phone's internal storage

Is there a way to encrypt my phone's internal memory, in the same way you would encrypt a computer's partition? Ideally, the phone would always ask for the password when booting, and even if someone ...
-1
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1answer
142 views

TLS version support

I am trying to backtrack the versions of TLS support on Android. More in detail: From which version of Android started TLS 1.0 support From which version of Android started TLS 1.1 support From ...
0
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1answer
537 views

Unlock encrypted Android from ADB

I have the following problem: Somehow, this evening the touchscreen of my Sony Xperia Z broke. I have two thin cracks in the display and everything on the right side of the crack does not react. I ...
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1answer
2k views

How can I use Public Key Authentication for SFTP in ES File Explorer?

I want to use SFTP to transfer files from Android to a Linux box using Public Key authentication rather than a traditional user name and password. Ideally I would like to use ES File Explorer (as I ...
8
votes
5answers
3k views

Use custom lock screen on encrypted Jelly Bean device

I recently enabled encryption on my Nexus S running Android 4.1.1. I'm aware of all the benefits and drawbacks, and device encryption is definitely something I want. It's currently working fine. ...
0
votes
1answer
478 views

Where is my TWRP backups on encrypted Android?

I encrypted my Android tablet which is a nexus 7. After that I did couple backups. Today I wanted to see the size of the total backups so I open the TWRP folder on my sdcard. There is nothing there. ...
1
vote
1answer
415 views

Encrypting Nexus 7 vs. screen lock

I read in this article that a non-encrypted tablet with only screen-lock on can have data read through USB. Is this really true for example for a Nexus 7 tablet? I mean - if I lock the screen you ...
0
votes
0answers
11 views

How to decrypt your device? [duplicate]

I encrypted my device thinking it'd be an added security thing. But after encrypting I realize, I cannot use slide to unlock ! There's no option given in the settings that says decrypt the device. ...
1
vote
1answer
232 views

Change Input Method without unlocking the phone?

Recently, I've installed a WiFi Keyboard application to my Android phone. This way, since both the phone and my computer were connected to the same WiFi network, I could access the phone's keyboard ...
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0answers
68 views

Decrypt Samsung S2 files?

My Samsung S2 just went dead with the encrypted SD Card in it and I found out that KIES didn't backup that memory. The phone was repaired but now I cant read the files on the SD. Anyone out there who ...
0
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0answers
116 views

Encryption code apparently not same as lock screen code

So after I encrypted my Moto X with a numeric passcode, it seemed to boot and unlock fine. But I changed my lock screen code to an alphabetic one. Now my phone will decrypt to my alphabetic code and ...
8
votes
4answers
987 views

How can I access data (such as WiFi keys) in an encrypted Titanium backup?

How can I decrypt an encrypted "Titanium Backup" backup using standard (linux) tools? Example: Wi-Fi serves as a practical example, many other uses may apply to the solution I'm looking for. If I ...
2
votes
0answers
439 views

Decrypting TitaniumBackup files [duplicate]

I have TitaniumBackup encrypting backup copies of app settings before uploading to Google Drive. In order to verify/restore applications I need to type my password. I need to extract a backup outside ...