Android :: Encrypt And Decrypt .apk Files / Re-"make" It Again Using WinZip?
Jun 7, 2010
I was wondering how to break apart .apk files in Windows to see all of it's components, edit some of the components, and put the file back together.
I have been able to open up the file to see the components using WinZip but I am unsure of how to re-"make" the .apk file again using WinZip. Is there a special option within winzip or can you just change the extension from .zip to .apk? Not sure if this matters, but the .apk files are being used within Eclipse in an emulator as of now.
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Mar 25, 2009
I want to write an app which encrypts the data and decrypts it into original data.
But I dont know how to do it.
can any one please guide me how to do it.
if possible please show me some example.
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Jun 30, 2010
I am working on an android application, and I need to use encryption for one aspect of it. I am really indifferent to which algorithm I use (AES, DES, RSA, etc...). I am aware that Java has a crypto package, but I am not at all familiar with. Can someone post an example on how to do an encrypt/decrypt function?
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Jan 20, 2010
I want to know if I can create an application in android that encrypts your voice in a normal phone call and sends it to the destination where it can then be decrypted.
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Jul 18, 2010
Is there some code snippet that show how to encrypt a password with Android and then decrypt it with php?
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Nov 24, 2010
I want to encrypt file and store it in SD card. I want to decrypt that encrypted file and store it in sd card again. I have tried to encrypt file by opening as file stream and encrypt is but it is not working. I want some idea how to do this.
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Dec 1, 2009
Is it possible in android framework to encrypt/decrypt voice data? What I am thinking is when a call comes in, and before user picks it up another local application is activated, it then encrypts and decrypts outgoing/incoming voice data?
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May 7, 2010
What is the secure way to store passwords on android device?
I found same topic in "Android Developers Group". Steve918 kindly shared a sample code for it but I can not download it anymore. http://steven.bitsetters.com/articles/2007/11/20/android-password-safe/
Does anybody know how to encrypt/decrypt password using Android supporting secure algorithm?
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Apr 14, 2012
I purchased an Acer Iconia A200. It took the system upgrade to Ice Cream Sandwich without any problems. After upgrading, I chose to apply the "Encrypt Tablet" feature -- and now I regret that choice. The tablet won't take any more system updates, and apparently it can't ever successfully follow through on a factory reset.
Any way to decrypt an encrypted Ice Cream Sandwich tablet -- or at least if there's a way to factory reset it successfully?
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May 2, 2012
I encrypted my Samsung Galaxy Nexus several months ago and now I want to decrypt the drive and wipe the information. Nothing I have tried has worked so far.
The option to perform a factory reset through the OS has not worked. I make the selection, enter in my passphrase, the phone reboots into the green robot screen (like it was updating) then when it boots back up it asks me to enter in the encryption passphrase again and I do then it takes me to my un-wiped phone.
I have also attempted to reset it with the ClockworkMod Recovery and it will not work either. Giving an "Error mounting data!" message and similar message for the rest
I have my Nexus unlocked and rooted but it is running stock other than those two.
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Jul 17, 2010
I create aviparsernode folder by coping from MP4 parser node folder under /external/opencore/nodes/. But when I type "make" command under /external/opencore/build_config/opencore_dynamic/. The files under aviparsernode folder are not compilied. Does any one knows how to let OpenCore to make files under aviparsernode folder?
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Aug 28, 2010
I'm making a game, but the game lags a bit every time onCellLocationChanged or updateNetworkNameExtension shows up in my Log file. What is making these two run? Is there a way to make them not run?
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Aug 25, 2010
Any news on someone making a program to view/edit sketchup files? I'd quite like to be able to have an engineering doodle when bored.
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Mar 11, 2010
Does anyone know how to decrypt a stored google password on an HTC Hero?
My bro forgot his google password. The secondary email is completely defunct. The security question is completely incomprehensible. He even filled out the form to convince google that he is who he says he is... no dice.
The ONLY place the password is stored is his HTC Hero, as a saved gmail password.
My question is... is there a way to export, decrypt, or recover his gmail password on his Hero?
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Nov 20, 2010
Is it possible to encrypt a whole external sd card(or a part of its partition i.e ext/fat32) and mount it at boot time or when ever users wants.
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Jul 13, 2010
Security is top priority for me, i realise there are apps out there that can remote wipe lock etc, but if the thief is quick enough to take out the sdcard and put it in another phone the sdcards contents can still be accessed can't it?
So i would like to know if there is anyway to encrypt or protect the sdcard and the contents within it?
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Jun 4, 2010
I am new to android. i am trying to learn and work on it.can some one help me with the following issue.
i have some fields to be encrypted and uploaded to the DB using android.
the fields which should be encrypted are DOB,Email id, Phone number and some othe numeric value.
now i am doing some formal encryption by substitution.
Can some one help me with an example to do some standerd form of encryption.
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Sep 16, 2013
Is there a way to encrypt a file in Android 4.1?In Linix vim there is an option (vim -x) to do this, but it does not seem to be present in VimTouch.I'd like if possible to share an encrypted file between PC and phone.
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May 22, 2010
Is there an app that can help me access my computer's files or just make my phone become an external disk over the wifi? if so can u plz tell me which apps or software i need to install?
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Nov 6, 2011
I have a couple of videos, that I would like to strip the audio from, and was planning to use FLAC, and/or similar lossless codec; but before I do this, what codecs can Andriod decrypt? According to Android Central, it can decode FLAC, but only in Android 4.0 and higher, and I'm currently on Android 2.3.4 on a HTC Amaze 4G...
Is there any software I could get, in order for it to decode/decrypt FLAC correctly?
I don't mind using any other lossless audio codec, as long as Android 2.3.4 supports it...
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Jun 2, 2010
How to do RSA encryption of byte array with base-64 encoded public key?
After reading the couple of articles( of google search ) on how to do RSA encryption in Java, found the following snippet.
CODE:.........
I have public key as a base64 encoded string (126 characters), How do i create 'PublicKey' with the encoded string and use it with Cipher.
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Jun 21, 2012
I'm looking to make a large library of files available through an app. (nearly a 3gb folder and growing.
User would download the APP and then have access to an ever growing library of files they can then choose to download whatever they want from it.
Can this be done by a simple RSS reader?
I don't want the files available to anyone without the app installed. It would only be a text list of the files, clickable to download.
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Sep 13, 2010
Would it be possible for me to build an application that enables people to encrypt call coming to me with my public key and then for me to decrypt the call data at my end using my own private key. This way I basically have a more secure communication channel which I am assuming because RSA is hard to crack would be difficult to monitor.I am asking this question from a research point of view and have absolutely not considered the factor as to how computationally feasible would such an application be. I would just like to know if there is a way for me to intercept my outgoing data using any built functions.
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Feb 28, 2014
I just encrypted my LG G2 and chose I believe a 17 character random password which includes punctuation. It's hard enough to remember and I only wish to enter it when I power on the phone. However it seems I have to enter it every time the phone locks itself. I don't want that, it's a heck of inconvenience. I just want swipe to unlock, not no pin or no pattern and only want to enter the big as password when the phone turns on. I am rooted and on the latest AT&T firmware.
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Sep 30, 2010
I have a rooted evo running fresh 3.3.3.1 and so far I love it. I used unrevoked 3.21 to do this. My question is does flashing new radio files and pellet files actually increase and or decrease how well the radio works on the phone. I noticed hat once I installed wireless tether that my WiFi signal seems to go down 1 or 2 bars when the laptop is not even 10 feet away. Is thus normal. Anyway I'm very knew to the whole flashing of radio files and just wanted to hear if it does anything or not.
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Sep 15, 2010
If i can make new files on my phone for private pics to go in as for my eyes only?
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Sep 13, 2010
So I could easily do this with my other Captivate before I traded in for a new one (last one was defective, thats a different story) they are both rooted. The thing is I can't remember how I set my song as my ringtone. It is a full song and I easily set it as my ringtone. I didn't put it in a custom "ringtones" folder or anything.
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May 11, 2014
I want to make am basic app of website . To be accessible offline.I have files:
database/database.txt
css/style.css
img/logo.jpg
index.php
how to put that files info apk file and make it all working (php) ?
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Jan 19, 2013
I know that I can make a recovery zip to install packages, but I was wondering if I can make a zip that will extract and replace database files on my phone that are not packaged. The reason I want to do this is so that when I flash a new ROM, I can easily restore certain phone settings like altered APN databases.
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Oct 14, 2012
I search for a way, to make a complete backup. Because i will test some other roms. Complete backup mean somthing like the ftf files for Flashtool. a backup from kernel, rom and personal data's in one way with one file or folder that i can restore later. I think, that this not is possible with Smartphone on, so it must be a way with pc and Smartphone in Flash- or Fastboot mode?
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