pub async fn seed_keypair<P, S, Seed>(
    pub_key: P,
    sec_key: S,
    seed: Seed
) -> impl Future<Output = Result<(), OneErr>>where
    P: Into<BufWriteSized<sodoken::::crypto_box::curve25519xsalsa20poly1305::seed_keypair::{constant#0}>> + 'static + Send,
    S: Into<BufWriteSized<sodoken::::crypto_box::curve25519xsalsa20poly1305::seed_keypair::{constant#1}>> + 'static + Send,
    Seed: Into<BufReadSized<sodoken::::crypto_box::curve25519xsalsa20poly1305::seed_keypair::{constant#2}>> + 'static + Send,
Expand description

create a box curve25519xsalsa20poly1305 keypair from a private seed