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

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1answer
43 views

Client-side encryption of messages across apps

Is it possible to encrypt any message (part) across apps? I'd want client-side encryption using pgp keys (asymmetric public/secret) integrate into multiple apps (like WhatsApp, GoogleTalk, ...), ...
2
votes
1answer
133 views

Why isn't there any encryption application on GSM calling?

I just wondering the reason why there is no encryption tool for GSM calling in android. Is it legal or technical problem? Thank you
1
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0answers
285 views

Decrypt encryptes Android Phone (MIUI 4.2)

I've encrypted my Phone because of my organization's policy. Unfortunately the device is a bit slower and moreover I am not able to update ROMs anymore. I do have root access and my device is running ...
1
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0answers
76 views

What file level function is used to read/write SQLite database file [closed]

I am working on some sort of implementation for SQLite file encryption in Android devices. I would like to get some info about the low level function inside the SQLite source code (Amalgamation ...
5
votes
1answer
2k views

How can I decrypt an encrypted SD card (HTC Evo 4G) on a different device?

I encrypted both my phone and SD card upon purchasing my HTC Evo 4g LTE. Recently the phone died (would get to the login screen and then reboot). After a factory reset the SD card shows up as ...
4
votes
0answers
499 views

Is full device encryption possible on LG Optimus L5 II (LG-E460)?

After starting the encryption process from within the Device Policy Manager for Google Apps the device will reboot, and immediately get stuck on the boot loader while happily displaying the LG logo ...
1
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0answers
104 views

Device encryption and broken screen

Assuming you have a device that is encrypted by the factory encryption option in the security settings of the device, and having said device suffer a fall and end up with a broken screen, what are the ...
3
votes
0answers
1k views

How to do backups and updates properly with full device encryption?

I think about the following use cases: 'Perfectly' reverse encryption without losing settings Update ROMs. Even if /system, /data, /sdcard (internal) are encrypted Low level Backups with CWM. When ...
1
vote
1answer
121 views

How do I keep my email and passwords secure without full-device encryption?

I bought a cheap, no-name Android 4.1.1 tablet a while back, and was dismayed to find that the "Encrypt Data" option was simply not present in the "Settings" -> "Security" menu. I then upgraded to a ...
1
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0answers
74 views

Android - Exchange encryption - SD card 'damaged'

Mrs has a HTC One S, asked me to set up her work email on exchange. No problem. Got to the device admin-security policy part; a little bit surprised by requesting encryption & pin lock but what ...
2
votes
1answer
1k views

Can I safely downgrade an encrypted Asus Transformer TF101 from 8.6.5.21 to 8.6.5.19?

I want to root my encrypted Asus Transformer TF101 (Firmware 8.6.5.21; Serial B80...) and install a custom ROM. I read that the only way to do this is by downgrading to stock 8.6.5.19 and then using ...
5
votes
3answers
18k views

How do I decrypt files on my SD card that I encrypted using the Settings?

I have files that I used to copy from my SD card to my PC using the USB Mass Storage option under the "USB connection" pop-up. I checked the flag under Settings->Location & Security->Data ...
0
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0answers
46 views

How can I decode a mobile encoded file?

I am using filelock software in my Android phone. You can encode (encrypt) any file in this software by a password. I forgot my password and without password I cant decode my file. Is there any ...
1
vote
0answers
399 views

“Encryption Failed” on my Samsung Note 2 & it asks me to reset device. Is there a way to back up my data

I have Samsung Galaxy Note 2 from AT&T. At the reboot it displays "Encryption failed", and would ask me to reset device. I cannot access my phone. I have very important data on this phone. I want ...
-1
votes
1answer
203 views

Why/ How do some manufacturers remove the Encryption option? [closed]

I've owned two Android tablets now - one a no-name cheapo device (running 4.1.1); the other a more mainstream Asus Memopad HD 7 (4.2.1). Neither have had the "System" -> "Security" -> "Encrypt Data" ...
0
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0answers
73 views

i can't play my video files due to previous encryption

I have a samsung galaxy note N7000, i encrypted my files but then i needed to factory reset my phone. after the reset all my files is ok since i remove the external sd but all the files in the sd cant ...
5
votes
1answer
254 views

Performance impact of device encryption

As far as I know, most or all Android devices don't have any hardware cryptography accelerators, so the block-level storage encryption happens on the CPU. How high is the impact of encrypting and ...
4
votes
2answers
3k views

How do I decrypt files on SD card that I encrypted on a different device? [duplicate]

I encrypted my phone and SD card on my Note 2. I broke that phone, but recovered the SD card. How do I decrypt the SD card to get all files out (I do have password for it) with the new phone?
1
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0answers
79 views

Cannot log in to my android phone anymore

Few days ago I got firmware update in my S3. After update, I realized the default QWERTY keyboard is lost. There was only voice input. Then, I downloaded painfully "Go Keyboard" with voice search in ...
4
votes
1answer
209 views

Backing up Android device on Windows via wireless

I need a way to back up my whole Android device on my PC, which is running Windows 7. I don't have USB cable for my phone, but I have wireless router, so my best option is using Wireless connection. ...
1
vote
1answer
973 views

K9-Mail PGP encryption problem

I have a bit of a problem with PGP and K9-Mail on my Galaxy S3. I'm using the GPG Mail plugin on my computer (Mac OS X 10.8) and can read and write mails just perfectly. Today I decided to setup PGP ...
1
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0answers
277 views

No encryption option on Huawei g510 and Android 4.1.1

I recently bought a Huawei g510 with Android 4.1.1 and I was going to encrypt it, but I just can't find the encryption option in the settings panel or any other place. I looked around on the net but ...
1
vote
1answer
197 views

Can the LG 768 be encypted?

I have an LG 768 device. It is running Android 4.04 with Kernel version 3.0.21 and build number IMM76L. I can find no way to encrypt the device. None of the menus lead to an option to encrypt. Has ...
1
vote
1answer
180 views

Cannot perform OTA update on encrpyted Nexus 4

I encrypted my phone because of an Exchange policy with my employer. However, to apply the OTA update, I must decrypt. But the encryption option is greyed out at Settings. I tried removing my Mail ...
14
votes
6answers
3k views

Is it reasonably safe to use PIN code for encryption?

On the Android 4.0 (Samsung Galaxy Nexus) there is a posibilty to encrypt the phone. I found this about the encryption on Android 3.0, is the same algorithms used in Android 4? ...
1
vote
1answer
204 views

Using luks manager app for creating file based containers for encryption, is there any chance that unencrypted data appears in crash dumps etc?

My PC is fully encrypted and protected with TrueCrypt using. I don't use TrueCrypt encrypted file based containers as they are not safe from the OS itself. The official TrueCrypt site states that file ...
0
votes
0answers
108 views

Does decrypting my device really require a wipe?

A number of sources on the internet seem to indicate that to fully decrypt an Android device you must do a factory reset/wipe. However on my GS2 the option to decrypt the device is clearly present and ...
0
votes
2answers
2k 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 ...
3
votes
0answers
129 views

Standalone program for managing encrypted partitions? Or, How can I manage encrypted partitions in recovery mode?

Android uses dm-crypt for providing disk-encryption as stated in the implementation notes. Those notes also state (emphasis mine): While the actual encryption work is a standard linux kernel ...
17
votes
4answers
877 views

Ice Cream Sandwich (ICS) - Encryption, select different PIN than Screen Lock

I was wondering if one can select different passwords for device encryption in ICS? Having the same password for encryption and unlocking the screen isn't quite that secure... Thanks for hints.
2
votes
1answer
2k views

Cannot Factory Reset after Encrypting

I encrypted my phone but now want it not encrypted so have to factory reset. However, if I try to do this from the CWM Recovery it says -- Wiping data... Formatting /data... Error mounting /data! ...
2
votes
3answers
159 views

How can I quickly remove all of my data from my device and then get it back again?

Soon, I'll have to give my phone (a non-rooted LG Nexus 4) to another person for some time. As the phone contains very sensitive information, I do not want this person to be able to access any of it. ...
1
vote
0answers
208 views

Android 4.2 “Partition…has a different major than its disk!” error in logcat

I'm using a Samsung i9100 running Android 4.2.2 via sentinelrom_v4_75_i9100. No changes to the kernel outside what came with that ROM. I've tried encrypting a number of different 4.2.2 ROMs and ...
0
votes
1answer
203 views

Nexus 4 encryption

I encrypted my nexus, and now forget the password after the power is run out Can anyone tell me how many digit required and its rules (upper case, number, etc)?
0
votes
1answer
180 views

Encryption and Screen Lock without SIM card

I'm have a Samsung Galaxy S3 running Android 4.1.2 which I am trying to encrypt through Settings -> Security -> Encrypt Device. The process I am following is described in this article at Step 2. ...
2
votes
0answers
800 views

CM10.1, GS II, Mount command for encrypted sdcard0

Question: What is the syntax for the mount command within android to mount an encrypted file system? Context: I'm using CM10.1 (currently cm-10.1-20130604-NIGHTLY-I9100) on a Samsung Galaxy S2 ...
0
votes
1answer
2k views

Phone will not let me ENCRYPT

I want to encrypt my apps and personal data, such as passwords to email etc. If I have factory reset my phone (GS2sprint) and it is fully charged (over 90%) and plugged in. So I went to ...
1
vote
2answers
980 views

In which version of Android was encryption of /data made available?

These docs suggest that it has been available (only) since Android 3.0 Honeycomb. By contrast, conversation on discussion boards suggests it was available in 2.3.4 Gingerbread. So, what is the answer ...
0
votes
1answer
599 views

Use Tasker to swipe lock the screen for 10 mins then require password thereafter

i'm looking for a way where i can use the power button to turn off the screen and activate the swipe lock. If the phone is left untouched/unswiped for 10 mins the password lock should come on. There ...
1
vote
0answers
2k views

Why can't I access the files on my SD card?

I have a Motorola Droid Bionic which I recently updated to Android 4.1.2. Since the update, I can no longer access any of the files on the 32GB micro SD card I installed in the phone. I can view all ...
7
votes
1answer
237 views

How do I cancel a half completed email configuration?

Phone is trapped trying to encrypt my device against my wishes. On my Nexus S I was recently upgraded to 4.0.4 and decided to try adding my work email to my personal phone. This previously didn't ...
2
votes
0answers
58 views

Is there a way to share OTR keys between different applications?

I have IM+ pro installed on my phone and purchased the OTR upgrade. On my linux laptop I have pidgin installed and the OTR plugin active. I set both XMPP resources - laptop and nexus - to the same ...
0
votes
0answers
200 views

All files corrupted after Ext. SD encryption. external SD card gets encrypted due to Mail server

I have a Galaxy Note-2. Android version 4.1.2. After I sync into my Organisation's email on my phone it used to encrypt my SD card and External SD card. This never rendered my data inaccessible -- ...
20
votes
2answers
2k views

What is the Streaming Decryption setting in Google Drive?

I notice a "Streaming Decryption" option under Encryption Settings. For me, it was not selected by default. The description under this setting is a little unclear: Decrypt documents into a stream ...
2
votes
0answers
320 views

Decrypting TitaniumBackup files

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 ...
2
votes
0answers
209 views

Disabled samsung keyboard- now can't turn on my s3

I am in a weird situation. Few days back (I believe) I disabled samsung keyboard using nobloat app as i use adaptxt all time. But i have an encryption password and as samsung keyboard is disabled, i ...
1
vote
2answers
883 views

Is my Exchange email encrypted on my device?

If I setup an email synchronization with our Exchange server, is the mail I store on my phone encrypted or readible if someone finds/steals my phone? I have enabled the unlock password (although it's ...
0
votes
5answers
3k views

Locking SDHC Memory card on Samsung Galaxy 2

I have stored an important document on the SDHC card on my Samsung Galaxy 2 phone (so that I can edit it on the go). I don't want others to access this file or document without my permission. I know ...
3
votes
3answers
14k views

SD card will not format within Android therefore cannot mount. Works fine on laptop

I bought a 64GB SD card for my Galaxy S3, and it worked perfectly. Today I turned on device encryption (worked fine) then I turned on SD card encryption. Since then I am stuck with the phone reporting ...
1
vote
0answers
879 views

Can I install a micro-SD card into my Note 2 after I've enabled device encryption?

I recently got a Note 2 and enabled device encryption. I want to put a micro-SD in it now to expand my storage capacity, but when I go to settings, it won't let me mount the card. Is it because of the ...