Function constant_time_eq

pub fn constant_time_eq(a: &[u8], b: &[u8]) -> bool

Compares two equal-sized byte strings in constant time.

Examples

use constant_time_eq::constant_time_eq;

assert!(constant_time_eq(b"foo", b"foo"));
assert!(!constant_time_eq(b"foo", b"bar"));
assert!(!constant_time_eq(b"bar", b"baz"));

// Not equal-sized, so won't take constant time.
assert!(!constant_time_eq(b"foo", b""));
assert!(!constant_time_eq(b"foo", b"quux"));