Function issue_token

mserver/MasterService/src/service.rs:403–410

Generate a fresh server token: `(plaintext, hash)`. The plaintext is returned to the server once on register; only the hash is persisted.

()

fn to_hex(bytes: &[u8]) -> String {
    bytes.iter().map(|byte| format!("{byte:02x}")).collect()
}

/// SHA-256 hex of a server token (what the DB stores; never the token itself).
pub fn token_hash(token: &str) -> String {
    to_hex(&sha2::Sha256::digest(token.as_bytes()))
}

/// Generate a fresh server token: `(plaintext, hash)`. The plaintext is returned to the
/// server once on register; only the hash is persisted.
pub fn issue_token() -> Result<(String, String)> {
    let mut bytes = [0u8; 32];