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
 

Changelog
https://github.com/nodesocket/cryptr/blob/master/CHANGELOG.md

Support, Bugs, And Feature Requests
Create issues here in GitHub (https://github.com/nodesocket/cryptr/issues).

Versioning
For transparency and insight into the release cycle, and for striving to maintain backward compatibility, cryptr will be maintained under the semantic versioning guidelines.
Releases will be numbered with the follow format:
<major>.<minor>.<patch>
And constructed with the following guidelines:

• Breaking backward compatibility bumps the major (and resets the minor and patch)
• New additions without breaking backward compatibility bumps the minor (and resets the patch)
• Bug fixes and misc changes bumps the patch

For more information on semantic versioning, visit http://semver.org/.