anubis-wormhole 1.0.0

A post-quantum secure file transfer tool based on the Magic Wormhole protocol.
Documentation 
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use crate::traits::Kem;
use std::time::{Duration, Instant};

#[derive(Clone, Copy, Debug)]
pub struct RekeyPolicy {
    pub max_bytes: u64,
    pub max_records: u64,
    pub max_duration: Duration,
}

#[derive(Debug)]
pub struct RekeyState {
    pub bytes: u64,
    pub records: u64,
    pub started: Instant,
}

impl RekeyState {
    pub fn new() -> Self { Self { bytes: 0, records: 0, started: Instant::now() } }
    pub fn add_record(&mut self, size: u64) { self.bytes += size; self.records += 1; }
    pub fn should_rekey(&self, p: &RekeyPolicy) -> bool {
        self.bytes >= p.max_bytes || self.records >= p.max_records || self.started.elapsed() >= p.max_duration
    }
}

pub fn new_kem_secret<K: Kem>(kem: &K, peer_pk: &K::PublicKey) -> (K::Ciphertext, K::SharedSecret) {
    kem.encapsulate(peer_pk)
}