deadbolt
deadbolt
simplifies encrypting and decrypting files. All you need is a password.
Select a file to encrypt, enter a password, and … that’s it. Decryption is just as easy.
You can download deadbolt
for Mac OS, Windows, or Linux. Any encrypted file can be shared across these platforms.
Note:
deadbolt
can not encrypt directories. To encrypt a directory, compress it into a.zip
(or any archive format) file before usingdeadbolt
.
Installation
If you're running Mac OS, install deadbolt
with Homebrew:
$ brew install --cask deadbolt
If you're running Windows or Linux, download the latest release here.
Ubuntu / Debian
First try:
$ sudo apt install deadbolt_1.0.0_amd64.deb
but if apt
suggests removing ubuntu-desktop
, etc, use:
$ sudo apt install deadbolt_1.0.0_amd64.deb --no-install-recommends
I'm working on packaging it for
snap
,apt
and AppImage, as well asaur
.
How it Works
Non-Technical Version
deadbolt
uses a proven, secure encryption algorithm to make sure your files stay safe.
Technical Version
deadbolt
is built on Electron and uses crypto.js
from the node.js
standard library. The encryption protocol used is AES-256-GCM
. This algorithm is part of the NSA's Commercial National Security Algorithm Suite and is approved to protect up to TOP SECRET documents. A 256-bit derived key for the cipher is created using 11,000 iterations of pbkdf2
with the SHA-512
HMAC digest algorithm, a 64-byte randomly generated salt, and a user generated password. The authenticity of the data is verified with the authentication tag provided by using GCM. These parameters were chosen by following the NIST Guidelines for pbkdf2.
FAQ
macOS
Showing Extensions on By default, macOS
hides file extensions. To reduce confusion about what type each file is, I recommend configuring macOS
to show file extensions. You can do that with the following command: $ defaults write NSGlobalDomain AppleShowAllExtensions -bool true && killall Finder
.
deadbolt
as Default App for .dbolt
Files on macOS
Setting You can set this app as the default app for .dbolt
files, which means you'll be able to double-click on .dbolt
files to open them with deadbolt
for decryption.
You can set this up the first time you double-click on a .dbolt
file, or by right-clicking on a .dbolt
file, selecting Get Info
and changing the default app in the Open With:
section.
To do this programmatically, run the following snippet:
$ brew install duti
$ duti -s org.alichtman.deadbolt dyn.ah62d4rv4ge80k2xtrv4a all
The output of $ duti -x dbolt
should then be:
$ duti -x dbolt
Deadbolt.app
/Applications/Deadbolt.app
org.alichtman.deadbolt