File Encryptor

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Other Topics

• Quick Start
• Batch Processing
• More...
• SAF Mode (Android 5+)
• FAQ

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 Related Settings
 
 Video Tutorial

Quick Start

Encryption

• Select a file or folder (touch a file/folder icon).
• Tap the Encrypt button (bottom-right corner).
• Set a password.
• A new ".enc file" will be created.
(Note: You can delete/wipe the original file(s) after the encryption or it can be done automatically: Settings: File Encryptor → Wipe Source After Encryption)

Decryption

• Select an encrypted file (touch a file).
• Tap the Decrypt button (bottom-right corner).
• Enter the correct password.
• The selected file will be decrypted.

A - Available Drives and Dirs

• User-defined Home/Default directories, shortcuts to the application directories + a directory/drive selector (using SAF directory picker).
• Custom Directories -
  
  • Encrypted/Decrypted files output directories can be set here (if enabled in Settings: File Encryptor → Encrypted/Decrypted Files Destination)
    
    
    

B - Current Volume Parameters

• available space / volume size

C - Selected File/Folder

• Long-click to select folder
• Short-click to select file
• or touch a file/folder icon
• Selected file or folder can be:
  • Encrypted or Decrypted (according to the state of the selected file) by the Encrypt/Decrypt button (E);
  • Renamed, Opened, Deleted, or Wiped by using the "Menu button" (bottom, second from right);
  • Note: Long-clicking on a file leads to the same behavior as using the Menu button on the selected file/folder.
• Multiple File Selection

D - Encrypted File

• Encrypted files can be recognized by .enc extensions, purple backgrounds, and “lock” icons.

E - Encrypt/Decrypt Button

• Encrypt or decrypt (according to the selected item) files or folders.

F - Compression ON/OFF

• Activate/deactivate data compression.

G - Direct to the Main Menu

• Go directly to the application Main Menu

H - More Button

• Selected file/folder can be Renamed, Deleted, Wiped or Opened (file).

I - Set Session Password

• Set session ("master") password.
• A password is not set to enter the application, but set for the current encryption/decryption session. You may have an unlimited number of passwords for any purpose.

Multiple File Selection

• Multiple file selection (batch processing) - (PRO version feature)
• This can be activated/deactivated in the application settings; Settings → File Encryptor: Multiple File Selection

More...

• The encryption/decryption process can be interrupted by the "Back Button".
• Wiping:
  
  • Data is physically overwritten before deleting (cannot be undeleted).
  • warning: Due to caches, reallocation mechanisms, and wear-leveling in modern systems and on hardware/driver levels itself, there is a disproportion between "reported file system state" (reported to the app) and "real/physical memory state". There is a possibility that sometimes on some devices (depended on system/flash memory driver) the wipe feature will not work on 100%. There is no way, how to be absolutely sure, since the app works always only with a "virtual" image of a physical media.
• Icons
  
   

  	Folder
  	Read-Only Folder
  	File (more types: image, video, ...)
  	Read-Only File (more types: image, video, ...)
  	Encrypted File
  	Read-Only Encrypted File
  	Back to the Parent Folder

   
• Incorrect Password
  • There is no way to decrypt any file without a correct password.

SAF Mode (Android 5+)

Where?

• button or

Or it can be used for output operations only (if custom destination folders are activated in the application settings - Settings: File Encryptor → Encrypted/Decrypted Files Destination).
If you set the destination(s) to "Ask", the following dialog will be displayed for all encryption/decryption tasks:




Background
In Android 4.4 (KitKat), Google suddenly cut off all third-party (non-preinstalled) applications from the permission to write to external/removable storage. Thanks to this decision, a lot of applications have been crippled and some have become entirely useless. Pressure on Google has led to a compromise solution that has been integrated into Android 5. Applications can regain the write permission to external storage using a new API together with SAF (Storage Access Framework). However, in general, external SD cards are usually much less reliable (especially some combinations of devices/SD cards) than an internal memory.

First Start

• Directory picker will appear. You need to select the directory (or volume) with which you want to work.
• Tap the More button (top-right corner) and choose Show SD card.
• Tap the Menu button (top-left corner) and choose the storage you want to use.
• Tap SELECT (bottom).

Limitations
There are some limitations in the SAF mode you should know.

• SAF API provides lower performance (in fact - much, much lower) than the standard direct file access mode (especially with dirs that contain a lot of files/subdirs).
• Home/Custom directories cannot be set in SAF; however, the last-picked SAF URI is automatically saved: Home Button → Go to Last Picked SAF Dir.
• The wipe feature does not work. If option “Wipe after Encryption” is checked in the app settings, file(s) will be deleted only. If you use "Select Destination (SAF)" together with read-only source files, the file(s) will not be deleted at all.
• The “Open File” function will work only if the destination application is able to decode the SAF URI.