fpass 0.2.3

CLI Password Manager
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use aes_gcm::{
    Aes256Gcm, Key, Nonce,
    aead::{Aead, KeyInit},
};
use anyhow::{Result, anyhow};

use crate::password;

/// Full encryption.
/// let (encrypted_text, salt, noncee) = encrypt(data, password);
pub fn encrypt(
    data: &[u8],
    password: &[u8],
    salt_bytes: &[u8],
    nonce_bytes: &[u8],
) -> Result<Vec<u8>> {
    let key = password::derive_key(password, &salt_bytes)?;
    let nonce = Nonce::from_slice(&nonce_bytes);
    let ky = Key::<Aes256Gcm>::from_slice(&key);
    let cipher = Aes256Gcm::new(ky);
    cipher
        .encrypt(nonce, data)
        .map_err(|e| anyhow!("Error with encryption: {:?}", e))
}