digipl
February 3, 2024, 7:57pm
7
As long as it is the client who performs the self-encryption, it is not possible for the nodes to know whether the chunk is encrypted or not.
As for compression, self-encryption use brotli.
Brotli is a lossless data compression algorithm developed by Google. It uses a combination of the general-purpose LZ77 lossless compression algorithm, Huffman coding and 2nd-order context modelling.
Brotli is primarily used by web servers and content delivery networks to compress HTTP content, making internet websites load faster. A successor to gzip, it is supported by all major web browsers and has become increasingly popular, as it provides better compression than gzip.
Google employees Jyr...
}
/// Encrypt the chunk
pub(crate) fn encrypt_chunk(content: Bytes, pki: (Pad, Key, Iv)) -> Result<Bytes> {
let (pad, key, iv) = pki;
let mut compressed = vec![];
let enc_params = BrotliEncoderParams {
quality: COMPRESSION_QUALITY,
..Default::default()
};
let _size = brotli::BrotliCompress(
&mut Cursor::new(content.as_ref()),
&mut compressed,
&enc_params,
)
.map_err(|_| Error::Compression)?;
let encrypted = encryption::encrypt(Bytes::from(compressed), &key, &iv)?;
Ok(xor(&encrypted, &pad))
}
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