crypto

Simple symmetric GPG file encryption and decryption

About

crypto provides a simple interface to symmetric Gnu Privacy Guard (gpg) encryption and decryption for one or more files on Unix and Linux platforms. It runs on top of gpg and requires a gpg install on your system. Encryption is performed with the AES256 cipher algorithm.

Encryption benchmarks vs. default gpg encryption are available here with additional details for text, pdf, mp3, and png mime types.

crypto provides a number of options including automated tar archives of multiple files prior to encryption, portable ASCII armored encryption formatting, and SHA256 hash digest generation for your encrypted files.

Documentation

Detailed documentation is available here.

Quickstart

Encrypt a File

$ crypto sometext.txt

Encrypt with Portable ASCII Armored Format

$ crypto --armor sometext.txt

Encrypt Multiple Files with Same Passphrase

$ crypto sometext.txt anotherimage.jpg

Encrypt Multiple Files with Wildcard Expansion

$ crypto *.txt

Encrypt and Generate SHA256 Hash Digest of the Encrypted File

$ crypto --hash sometext.txt

Encrypt All Top Level Files in Multiple Directories with Same Passphrase

$ crypto imagedir privatedir

Pack Multiple Files in a Tar Archive, Then Encrypt the Archive

$ crypto --tar privatedir

Decrypt a File

$ decrypto sometext.txt.crypt

Decrypt All Encrypted Files in Top Level of Directory

$ decrypto privatedir

Decrypt Text to Standard Output Stream

$ decrypto --stdout sometext.txt.gpg

Install

1) Install GPG

Mac OSX Users

Mac OSX users can install gpg from source, with Homebrew, or by installing the Mac GPG Tools Suite.

The Homebrew install command is:

brew install gpg

Please refer to the detailed documentation on the Gnu Privacy Guard and Mac GPG Tools suite sites for more information if you choose the source or GPG Tools approaches.

Linux Users

If gpg is not installed on your Linux distro, you can use your package manager to install it or compile and install it from the source.

2) Install crypto

You can install crypto with pip:

pip install crypto

or download the crypto source, unpack it, navigate to the top level directory, and install with the command:

python setup.py install

Options

crypto Options

--armor | -a

Encrypt in a portable ASCII armored format

--hash

Generate SHA256 hash digest of encrypted file(s)

--space

Favor reduced file size over encryption speed

--speed

Favor encryption speed over reduced file size

--tar

Create tar archives from directories of files, then encrypt

decrypto Options

--nountar

Do not automatically unpack tar archives after decryption

--overwrite | -o

Overwrite an existing file with the new decrypted file

--stdout | -s

Push the decrypted data to the standard output stream instead of generating a new file

Other Options

--help | -h

View the help documentation

--usage

View the usage documentation

--version | -v

View the crypto version number

Issues

Please submit a new issue report on the GitHub repository with a detailed overview of the problem that you are having.

Project Contributors

• Christoph Russ (@christophruss)

MIT License | Built with the Naked Framework