GPG Utilities

This project provides a set of scripts for signing, encrypting, and verifying files using GPG (GNU Privacy Guard). It includes both Python and Bash scripts to facilitate various cryptographic operations.

Features

• Sign Messages: Clearsign or detach-sign messages using GPG.
• Symmetric Encryption: Encrypt and decrypt files using a password.
• Asymmetric Encryption: Encrypt and decrypt files using recipient keys.
• Verify Signatures: Verify signed messages and files.

Scripts

Python Scripts

1. gpg-clearsign-cmd.zsh:

   • Prompts for a message and signs it using GPG.
   • Requires GPG installed and configured.

2. gpg-verify-clearsign.zsh:

   • Verifies a signed message using a public key.

Bash Scripts

1. gpg-crypt-sym.zsh:

   • Symmetrically encrypts or decrypts a file.
   • Usage: gpg-crypt-sym.zsh -f <file> -o <output> -m <mode> [-p password] [-a]

2. gpg-crypt.zsh:

   • Asymmetrically encrypts or decrypts a file.
   • Usage: gpg-crypt.zsh -f <file> -o <output> -r <recipient> -m <mode> [-a]

3. gpg-sign-file.zsh:

   • Signs a file using a specified GPG key.
   • Usage: gpg-sign-file.zsh -f <file> -o <output> -k <key> -s <signing_option>

4. gpg-verify-file.zsh:

   • Verifies a file against its signature.
   • Usage: gpg-verify-file.zsh -f <file> -s <signature>

Requirements

• GPG installed on your system.
• Nix package Manager (for Python scripts)

License

MIT License. See LICENSE for details.

Usage

Refer to the usage instructions in each script for specific command-line options and examples.