rooster 2.14.1

A simple password manager
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// The code in this file is copied from the "rust-crypto" Git repository.

// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use rtoolbox::safe_vec::SafeVec;
use aes::cipher::{block_padding::Pkcs7, BlockDecryptMut, BlockEncryptMut, KeyIvInit};

type Aes256CbcEnc = cbc::Encryptor<aes::Aes256>;
type Aes256CbcDec = cbc::Decryptor<aes::Aes256>;

pub fn encrypt(data: &[u8], key: &[u8], iv: &[u8]) -> Result<Vec<u8>, ()> {
    Ok(
        Aes256CbcEnc::new(key.into(), iv.into())
        .encrypt_padded_vec_mut::<Pkcs7>(data)
    )
}

pub fn decrypt(data: &[u8], key: &[u8], iv: &[u8]) -> Result<SafeVec, ()> {
    let buf = data.to_vec();
    Aes256CbcDec::new(key.into(), iv.into())
        .decrypt_padded_vec_mut::<Pkcs7>(&buf)
        .map_err(|_| ())
        .map(SafeVec::new)
}