Read a Snapshot From Filesystem

Run the Example

You can read a snapshot from the file system and retrieve the public key from the stored secret Ed25519 key stored at the given path by running the following command from within the client crate.

 cargo run --example cli read-snapshot --path "/path/to/snapshot.file" --client-path "client-path-0" --vault-path "vault-path" --record-path "record-path" --key "passphrase"

Expected Output

[2022-03-28T08:29:33Z INFO  cli] Loading snapshot
[2022-03-28T08:29:33Z INFO  cli] Creating public key
[2022-03-28T08:29:33Z INFO  cli] Public key is "smsmXBG/Ln/Yjip72OJns4PB4iejVBIzs4MOXO9IkTE=" (Base64)

Example Code

async fn command_read_snapshot(path: String, client_path: String, key: String, private_key_location: VaultLocation) {
    let stronghold = Stronghold::default();
    let client_path = client_path.as_bytes().to_vec();
    let snapshot_path = SnapshotPath::from_path(path);

    // calculate hash from key
    let key = hash_blake2b(key);
    let keyprovider = KeyProvider::try_from(key).expect("Failed to load key");

    info!("Loading snapshot");

    let client = stronghold
        .load_client_from_snapshot(client_path, &keyprovider, &snapshot_path)
        .expect("Could not load client from Snapshot");

    // get the public key
    let public_key_procedure = stronghold::procedures::PublicKey {
        ty: KeyType::Ed25519,
        private_key: private_key_location.to_location(),
    };

    info!("Creating public key");
    let procedure_result = client.execute_procedure(StrongholdProcedure::PublicKey(public_key_procedure));

    let procedure_result = procedure_result.unwrap();
    let output: Vec<u8> = procedure_result.into();
    info!(r#"Public key is "{}" (Base64)"#, base64::encode(output));
}