YAVA (Yeah Another Verification App)

YAVA is a command-line application written in Rust that provides secure file compression with integrity verification through SHA-256 checksums.

Installation

To install YAVA, run the following command:

 TODO: bash script for installing the binary

Usage

# To compress a file
yava <filename>

# To decompress a .yava file
yava <filename.yava>

Features

• File compression with metadata preservation
• SHA-256 checksum verification
• Creation date tracking
• Original file extension preservation
• Secure decompression with integrity checks

How It Works

Compression

When compressing a file, YAVA:

1. Calculates the SHA-256 hash of the file content
2. Records the current timestamp and original file extension
3. Compresses the file using XZ compression
4. Saves the compressed data along with metadata in a .yava file

Decompression

When decompressing a .yava file, YAVA:

1. Extracts the metadata (original hash, date, extension)
2. Calculates a new SHA-256 hash of the compressed content
3. Verifies the integrity by comparing the original and new hashes
4. If verification passes, decompresses the file to its original format

Security Features

SHA-256 hash verification ensures file integrity
Timestamp tracking for compression date
Automatic integrity checks during decompression
Clear security verification output

Technical Details

Written in Rust
Uses XZ compression (via xz2 crate)
SHA-256 for checksum verification
Preserves original file metadata

Requirements

Rust (latest stable version)
Compatible with Windows, Linux, and macOS

Building from Source

git clone https://github.com/Nichokas/YAVA.git
cd YAVA
cargo build --release