welsonjs/lib/crypto-js/hmac.min.js

!function(e,t){"object"==typeof exports?module.exports=exports=t(require("./core")):"function"==typeof define&&define.amd?define(["./core"],t):t(e.CryptoJS)}(this,function(e){var t,h;t=e.lib.Base,h=e.enc.Utf8,e.algo.HMAC=t.extend({init:function(e,t){e=this._hasher=new e.init,"string"==typeof t&&(t=h.parse(t));var i=e.blockSize,n=4*i;t.sigBytes>n&&(t=e.finalize(t)),t.clamp();for(var s=this._oKey=t.clone(),r=this._iKey=t.clone(),o=s.words,a=r.words,f=0;f<i;f++)o[f]^=1549556828,a[f]^=909522486;s.sigBytes=r.sigBytes=n,this.reset()},reset:function(){var e=this._hasher;e.reset(),e.update(this._iKey)},update:function(e){return this._hasher.update(e),this},finalize:function(e){var t=this._hasher,i=t.finalize(e);return t.reset(),t.finalize(this._oKey.clone().concat(i))}})});