use openssl::crypto::hmac::HMAC;
use openssl::crypto::symm;
+// These aren't the keys you're looking for.
static KEY_A: &'static [u8] = [125, 31, 131, 118, 143, 180, 252, 53, 211, 217, 79, 240, 128, 91, 252, 87, 104, 236, 145, 198, 163, 203, 161, 12, 53, 56, 218, 40, 221, 95, 171, 140];
static KEY_C: &'static [u8] = [75, 226, 88, 31, 223, 216, 182, 216, 178, 58, 59, 193, 245, 80, 254, 128, 125, 246, 246, 224, 194, 190, 123, 123, 10, 131, 217, 183, 112, 157, 166, 102];
+/// Only returns the first ten bytes.
pub fn compute_mac(data: &[u8]) -> [u8, ..10] {
let mut hmac = HMAC(SHA256, KEY_A);
hmac.update(data);
result
}
+/// Encrypt may fail if the provided data size isn't a multiple of 16.
pub fn encrypt(plaindata: &[u8], iv: &[u8]) -> Option<Vec<u8>> {
let c = symm::Crypter::new(symm::AES_256_CBC);
c.init(symm::Encrypt, KEY_C, iv.to_vec());
c.pad(false); // Padding disabled!
- let mut r = c.update(plaindata);
+ let r = c.update(plaindata);
let rest = c.finalize();
if rest.is_empty() {
Some(r)
}
}
+/// Decrypt may fail if the provided data size isn't a multiple of 16.
pub fn decrypt(cypherdata: &[u8], iv: &[u8]) -> Option<Vec<u8>> {
let c = symm::Crypter::new(symm::AES_256_CBC);
c.init(symm::Decrypt, KEY_C, iv.to_vec());
c.pad(false); // Padding disabled!
- let mut r = c.update(cypherdata);
+ let r = c.update(cypherdata);
let rest = c.finalize();
if rest.is_empty() {
Some(r)