PGP Encryption Tool

Description

This is a Rust-based command-line tool that encrypts files using PGP (Pretty Good Privacy). It allows users to encrypt files from a specified input directory and save the encrypted versions to an output directory. The tool leverages the sequoia-openpgp crate for encryption and supports public key-based encryption.

Features

• Encrypts all files in a given input folder
• Outputs encrypted files to a specified directory
• Supports public key encryption using the sequoia-openpgp crate
• Maintains relative directory structure in the output folder

Installation

Clone the repository and navigate to the project directory:

git clone https://github.com/akoken/pgp-encryption.git
cd pgp-encryption

Then, build the project:

cargo build --release

Usage

Run the tool using the following command:

./target/release/pgp-encryption -f <input_folder> -o <output_folder> -k <public_key_file>

Arguments:

• -f, --folder : Input folder containing files to encrypt
• -o, --output : Output folder where encrypted files will be stored
• -k, --key : Path to the public key file used for encryption

Example:

./target/release/pgp-encryption -f ./documents -o ./encrypted -k public-key.asc

Build from Source

To compile the project manually, run:

cargo build --release

This will create an optimized binary in the target/release directory.

Dependencies

The project relies on the following Rust crates:

• sequoia-openpgp for PGP encryption
• walkdir for directory traversal
• clap for command-line argument parsing

Error Handling

If an error occurs, the program will output an error message and return an appropriate exit code:

• 1 : Invalid input
• 2 : Public key error
• 3 : Encryption failure
• 4 : I/O error