#encryption #nethsm #backup #hsm

nethsm-backup

A library and binary for working with encrypted NetHSM backups

3 unstable releases

Uses new Rust 2024

0.2.0 Jul 10, 2025
0.1.1 Apr 22, 2025
0.1.0 Dec 8, 2024

#1739 in Cryptography

23 downloads per month
Used in 10 crates (2 directly)

Apache-2.0 OR MIT

33KB
176 lines

NetHSM backup

A library to parse, decrypt, validate and browse NetHSM backups.

Documentation

Examples

Listing all fields in a backup file:

# fn main() -> testresult::TestResult {
use std::collections::HashMap;

use nethsm_backup::Backup;

let backup = Backup::parse(std::fs::File::open("tests/nethsm.backup-file.bkp")?)?;
let decryptor = backup.decrypt(b"my-very-unsafe-backup-passphrase")?;

assert_eq!(decryptor.version()?, [0]);

for item in decryptor.items_iter() {
    let (key, value) = item?;
    println!("Found {key} with value: {value:X?}");
}
# Ok(()) }

Dumping the value of one specified field (here /config/version):

# fn main() -> testresult::TestResult {
use std::collections::HashMap;

use nethsm_backup::Backup;

let backup = Backup::parse(std::fs::File::open("tests/nethsm.backup-file.bkp")?)?;
let decryptor = backup.decrypt(b"my-very-unsafe-backup-passphrase")?;

assert_eq!(decryptor.version()?, [0]);

for (key, value) in decryptor
    .items_iter()
    .flat_map(|item| item.ok())
    .filter(|(key, _)| key == "/config/version")
{
    println!("Found {key} with value: {value:X?}");
}
# Ok(()) }

Features

  • _nethsm-integration-test enables tests that require podman for starting test dependencies in containers.

Contributing

Please refer to the contributing guidelines to learn how to contribute to this project.

License

This project may be used under the terms of the Apache-2.0 or MIT license.

Changes to this project - unless stated otherwise - automatically fall under the terms of both of the aforementioned licenses.

Dependencies

~1.7–2.3MB
~47K SLoC