var secret = "My Secret Passphrase";
var plainText = "the brown fox jumped over the lazy dog";
var encrypted = CryptoJS.AES.encrypt(plainText, secret);
var decrypted = CryptoJS.AES.decrypt(encrypted, secret);
document.getElementById("m1").innerHTML = encrypted;
document.getElementById("m2").innerHTML = decrypted;
document.getElementById("m3").innerHTML = decrypted.toString(CryptoJS.enc.Utf8);
alert(btoa("category=textile&user=user1")); // ==> Y2F0ZWdvcnk9dGV4dGlsZSZ1c2VyPXVzZXIx
alert(atob("Y2F0ZWdvcnk9dGV4dGlsZSZ1c2VyPXVzZXIx")); // ==> category=textile&user=user1