History

v2.1.0 (2019/12/26)

code now uses standard as linter
var has been replaced with const and let
code now executed in strict mode

v2.0.0 (2016/11/05)

Buffers are now required to be passed as arguments. In 1.x, the arguments were assumed to be strings, and were always run through String().
Starting with Node.js v6.6.0, use crypto.timingSafeEqual() (if available).