fpass 0.2.3

CLI Password Manager
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

use aes_gcm::{
    Aes256Gcm, Key, Nonce,
    aead::{Aead, KeyInit},
};

use anyhow::{Result, anyhow};

use crate::password;

/// Full decryption.
/// let data: Vec<u8> = decrypt(data_encrypted, salt, nonce, password);
pub fn decrypt(
    data_encrypted: &[u8],
    salt: &[u8],
    nonce: &[u8],
    password: &[u8],
) -> Result<Vec<u8>> {
    let key = password::derive_key(password, &salt)?;
    let nonce_byte = Nonce::from_slice(&nonce);
    let cipher_key = Key::<Aes256Gcm>::from_slice(&key);
    let cipher = Aes256Gcm::new(cipher_key);

    cipher
        .decrypt(nonce_byte, data_encrypted)
        .map_err(|e| anyhow!("Failed to decrypt data: {:?}", e))
}