Function private_box::decrypt

pub fn decrypt(cyphertext: &[u8], secret_key: &SecretKey) -> Result<Vec<u8>, ()>

Attempt to decrypt a private-box message, using your secret key. If you were an intended recipient then the decrypted message is returned as Ok(Vec<u8>). If it was not for you, then Err(()) will be returned.

Example

extern crate private_box;
extern crate sodiumoxide;

use private_box::{init, encrypt, decrypt};
use sodiumoxide::crypto::box_::curve25519xsalsa20poly1305::gen_keypair;
fn main() {
    let msg : [u8; 3] = [0,1,2];

    init();
    let (alice_pk, alice_sk) = gen_keypair();
    let (bob_pk, bob_sk) = gen_keypair();

    let recps = [alice_pk, bob_pk];
    let cypher = encrypt(&msg, &recps);

    let alice_result = decrypt(&cypher, &alice_sk);
    let bob_result = decrypt(&cypher, &bob_sk);

    assert_eq!(alice_result.unwrap(), msg);
    assert_eq!(bob_result.unwrap(), msg);
}