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use crypto::random;
const TOK_SIZE: usize = 64;
/// An authentication token that can be compared in constant time
///
/// ```
///
/// use lockchain_core::users::auth::Token;
/// let t1 = Token::new();
/// let t2 = Token::new();
///
/// // Will fail, but no expose failure length
/// assert_eq!(t1, t2);
/// ```
pub struct Token {
tok: [u8; TOK_SIZE],
}
impl Token {
pub fn new() -> Self {
let v = random::bytes(TOK_SIZE);
let mut tok = [0; TOK_SIZE];
tok.copy_from_slice(v.as_slice());
Self { tok }
}
}
impl PartialEq for Token {
fn eq(&self, other: &Self) -> bool {
let mut ret = true;
for i in 0..TOK_SIZE {
if self.tok[i] != other.tok[i] {
ret = false;
}
}
ret
}
}
impl Eq for Token {}
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