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use sodiumoxide;
use sodiumoxide::randombytes;
use sodiumoxide::crypto::hash::sha256;

pub fn hash(m: &[u8]) -> Vec<u8> {
    let digest = sha256::hash(&m);
    digest.0.to_vec()
}

pub fn random_bytes(size: usize) -> Vec<u8> {
    randombytes::randombytes(size)
}

/// Initialize the sodium library and chooses faster version of the primitives
/// if possible.
///
/// `init` also makes `KeyPair::random()` thread-safe.
pub fn init() -> bool {
    sodiumoxide::init()
}