tokio_postgres_generic_rustls

Trait DigestImplementation

Source 
pub trait DigestImplementation {
    // Required method
    fn digest(&self, algorithm: DigestAlgorithm, bytes: &[u8]) -> Vec<u8> ⓘ;
}
Expand description

Trait used to provide a custom digest backend to tokio_postgres_generic_rustls

This trait is implementated for three types by default, each behind it’s own feature flag. The provided backends are aws-lc-rs, ring, and rustcrypto.

Required Methods§

Source

fn digest(&self, algorithm: DigestAlgorithm, bytes: &[u8]) -> Vec<u8> ⓘ

Hash the provided bytes with the provided algorithm

use tokio_postgres_generic_rustls::{DigestImplementation, DigestAlgorithm};

struct CustomAwsLcRsDigest;

impl DigestImplementation for CustomAwsLcRsDigest {
    fn digest(&self, digest_algorithm: DigestAlgorithm, bytes: &[u8]) -> Vec<u8> {
        let digest_alg = match digest_algorithm {
            // Note: SHA1 is upgraded to SHA256 as per https://datatracker.ietf.org/doc/html/rfc5929#section-4.1
            DigestAlgorithm::Sha1 | DigestAlgorithm::Sha256 => &aws_lc_rs::digest::SHA256,
            DigestAlgorithm::Sha384 => &aws_lc_rs::digest::SHA384,
            DigestAlgorithm::Sha512 => &aws_lc_rs::digest::SHA512,
        };

        aws_lc_rs::digest::digest(digest_alg, bytes).as_ref().into()
    }
}

Implementors§