File Encryptor Apk

Older Versions

Apk Infos

Version	1.0.7
Rating	3.8/5, based on 25 votes
Size‎	93.4 KB
Requires Android	Android 4.4+ (KitKat)
Author's Notes	Encrypt your photos, documents and data files using AES Encryption.

About File Encryptor APK

Description

This app can be used for encrypting your files using Advanced Encryption Standard (AES) with 256 bit key. It can encrypt/ decrypt files using AES. This app ONLY REQUIRES PERMISSION to WRITE SD CARD and NOTHING MORE, so you can be sure ,that your DATA IS SAFE. It is COMPLETELY FREE OF ADVERTISEMENTS. You can be sure that the app does what it promises . The crack resistitvity of an AES depends on the password length and complexity. The app warns if the user does not selects a password with min 6 characters having atleast one uppercase letter, one lower case, one special character and one digit.

File Encryptor is a file Encryption application that allows you to protect your image,doc,xls etc data files. It allows you to encrypt/decrypt files using Advance Encryption Standard(AES) with a 256 bit (key length).

The system computes the 256 bit key from the password string using SHA-256. The system uses Cipher Block Chaining method (CBC) to encrypt the data in blocks of 128 bits. Block cipher modes for symmetric-key encryption algorithms require plain text input that is a multiple of the block size (ie 128 bits for AES), so messages may have to be padded to bring them to this length. The padding being used is PKCS5Padding. In CBC Explicit Initialization Vectors technique is being used wherein we prepend a single random block to the plaintext. Encryption is done as normal, except the IV does not need to be communicated to the decryption routine. Whatever IV decryption uses, only the random block is "corrupted". This block is discarded and the rest of the decryption is the original plaintext.

Electronic Codebook(ECB) block cipher method option has also been given to be compatible with legacy version of the app. In ECB the message is divided into blocks, and each block is encrypted separately.The disadvantage of this method is that identical plaintext blocks are encrypted into identical ciphertext blocks; thus, it must not be used with a non-random and repetitive data. The ECB mode is deterministic. ECB option is only for academic purpose and backward compatibility.

You can use it to encrypt files before putting them on online locations (cloud storage, Google Drive, Skydrive, Box, Dropbox, Gmail, etc.) or to store encrypted sensitive files on your Android phone so that they are unreadable to those who don't know your password.

Features
• AES encryption format.
• File encryption and decryption.
• Secure erase of original files after encryption or decryption ( will be build in future versions).
• Internal file browser for selecting.
• Send/share functionality for Google Drive, SkyDrive, Box, Dropbox, Gmail, Bluetooth etc.
• Encrypt your files before putting them in the cloud storage (Google Drive, SkyDrive, Box, Dropbox etc.)
• Password can be up to 40 characters (minimum 6 and recommended at least 12 characters or more)
• Encrypted files have .aes_ extension.
• Files after encryption/decryption go to the same folder.

Incase of any issues, feel free to write to me at
manindersinghgill@gmail.com

PS
Some good links to learn cryptography process being used in the app are as under
AES
https://www.youtube.com/watch?v=nL1ApwEXrz0
https://www.youtube.com/watch?v=ayiOhApI6SM

Block Ciphers, Why not use ECB?
https://www.youtube.com/watch?v=t0pREiDO7_g
https://en.wikipedia.org/wiki/Block_cipher

UTF-8
https://www.youtube.com/watch?v=vLBtrd9Ar28

Latest updates

What's new in version 1.0.7

The earlier version used Electronic Code Book(ECB) Block Cipher Mode which is vulnerable to Crypt analysis and not recommended to be used. This version uses Cipher Block Chaining(CBC) as the block cipher mode. In this mode, the feature to share the encrypted file/files as attachment in mail has been added. The support for SD Card has been added in addition to internal storage which existed earlier.

How to install File Encryptor APK on Android phone or tablet?

Download File Encryptor APK file from ApkClean, then follow these steps:

Update Phone Settings

• Go to your phone Settings page
• Tap Security or Applications (varies with device)
• Check the Unknown Sources box
• Confirm with OK

Go to Downloads

• Open Downloads on your device by going to My Files or Files
• Tap the APK file you downloaded (com.file_encryption.android-v1.0.7-ApkClean.apk)
• Tap Install when prompted, the APK file you downloaded will be installed on your device.

Older Versions

1.0.7 (7)	93.4 KB
1.0.5 (5)	98.5 KB

Questions & Answers

Q: What is an APK File?

A: Just like Windows (PC) systems use an .exe file for installing software, Android does the same. An APK file is the file format used for installing software on the Android operating system.

Q: If I install an APK from this website, will I be able to update the app from the Play Store?

A: Yes, absolutely. The Play Store installs APKs it downloads from Google's servers, and sideloading from a site like ApkClean.net goes through a very similar process, except you're the one performing the downloading and initiating the installation (sideloading).
As soon as the Play Store finds a version of the app newer than the one you've sideloaded, it will commence an update.

Q: Why ApkClean.net can guarantee APK 100% safe?

A: Whenever someone wants to download an APK file from ApkClean.net, we'll check the corresponding APK file on Google Play and allow user download it directly (of course, we'll cache it on our server). If the APK file does not exist on Google Play, we'll search it in our cache.

Q: What are Android App permissions?

A: Apps require access to certain systems within your device. When you install an application, you are notified of all of the permissions required to run that application.

Don't hesitate to contact us if you have any questions or concerns.

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