Cryptr – Shell Utility for Encrypting and Decrypting Files using OpenSSL

A simple shell utility for encrypting and decrypting files using OpenSSL.

Installation

git clone https://github.com/nodesocket/cryptr.git
ln -s "$PWD"/cryptr/cryptr.bash /usr/local/bin/cryptr

Bash tab completion

Add tools/cryptr-bash-completion.bash to your tab completion file directory.

API/Commands

encrypt

encrypt <file> – Encryptes file with OpenSSL AES-256 cipher block chaining. Writes an encrypted file out (ciphertext) appending .aes extension.

➜ cryptr encrypt ./secret-file
enter aes-256-cbc encryption password:
Verifying - enter aes-256-cbc encryption password:

➜ ls -alh
-rw-r--r--  1 user  group   1.0G Oct  1 13:33 secret-file
-rw-r--r--  1 user  group   1.0G Oct  1 13:34 secret-file.aes

You may optionally define the password to use when encrypting using the CRYPTR_PASSWORD environment variable. This enables non-interactive/batch operations.

➜ CRYPTR_PASSWORD=A1EO7S9SsQYcPChOr47n cryptr encrypt ./secret-file

decrypt

decrypt <file.aes> – Decrypt encrypted file using OpenSSL AES-256 cipher block chaining. Writes a decrypted file out (plaintext) removing .aes extension.

➜ ls -alh
-rw-r--r--  1 user  group   1.0G Oct  1 13:34 secret-file.aes

➜ cryptr decrypt ./secret-file.aes
enter aes-256-cbc decryption password:

➜ ls -alh
-rw-r--r--  1 user  group   1.0G Oct  1 13:35 secret-file
-rw-r--r--  1 user  group   1.0G Oct  1 13:34 secret-file.aes

You may optionally define the password to use when decrypting using the CRYPTR_PASSWORD environment variable. This enables non-interactive/batch operations.

➜ CRYPTR_PASSWORD=A1EO7S9SsQYcPChOr47n cryptr decrypt ./secret-file.aes

help

help – Displays help

➜ cryptr help
Usage: cryptr command <command-specific-options>

  encrypt <file>       Encrypt file
  decrypt <file.aes>   Decrypt encrypted file
  help                 Displays help
  version              Displays the current version

version

version – Displays the current version

➜ cryptr version
cryptr 2.1.1

default

default – Displays the current version and help

➜ cryptr
cryptr 2.1.1

Usage: cryptr command <command-specific-options>

  encrypt <file>       Encrypt file
  decrypt <file.aes>   Decrypt encrypted file
  help                 Displays help
  version              Displays the current version