mpc-protocol 0.5.0

Multi-party computation framework using the noise protocol for end-to-end encryption
Documentation 
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//! Compression helpers using zlib.

use flate2::{write::{ZlibEncoder, ZlibDecoder}, Compression};
use std::io::prelude::*;
use crate::Result;

/// Compress bytes.
pub fn deflate(packet: &[u8]) -> Result<Vec<u8>> {
    let mut encoder = ZlibEncoder::new(Vec::new(), Compression::fast());
    encoder.write_all(packet)?;
    Ok(encoder.finish()?)
}

/// Decompress bytes.
pub fn inflate(packet: &[u8]) -> Result<Vec<u8>> {
    let mut z = ZlibDecoder::new(Vec::new());
    z.write_all(packet)?;
    Ok(z.finish()?)
}

#[cfg(test)]
mod test {
    use super::*;
    use anyhow::Result;

    #[test]
    fn compress_decompress() -> Result<()> {
        let packet = "Some message that we send out over the wire.";
        let compressed = deflate(packet.as_bytes())?;
        let decompressed = inflate(&compressed)?;
        assert_eq!(packet.as_bytes(), &decompressed);
        Ok(())
    }
}