I have written javascript to for RSASHA256 but gettitng error crypto.js is not defined.

 function aaa(message,secret) {
     <script src="http://crypto-
      js.googlecode/svn/tags/3.0.2/build/rollups/hmac-sha256.js"></script>;
     <script src="http://crypto-
      js.googlecode/svn/tags/3.0.2/build/ponents/enc-base64-min.js"></script>;
     var hash = CryptoJS.HmacSHA256("Message", "secret");
     var hashInBase64 = CryptoJS.enc.Base64.stringify(hash);
     document.write(hashInBase64);
}

I have written javascript to for RSASHA256 but gettitng error crypto.js is not defined.

 function aaa(message,secret) {
     <script src="http://crypto-
      js.googlecode./svn/tags/3.0.2/build/rollups/hmac-sha256.js"></script>;
     <script src="http://crypto-
      js.googlecode./svn/tags/3.0.2/build/ponents/enc-base64-min.js"></script>;
     var hash = CryptoJS.HmacSHA256("Message", "secret");
     var hashInBase64 = CryptoJS.enc.Base64.stringify(hash);
     document.write(hashInBase64);
}

• javascript
• sha

• 1 I don't understand why <script> is in js function ? put it into html head tag – Rostyslav Kuzmovych Commented Jul 4, 2017 at 11:11
• 1 What you have (when corrected) is nothing to do with RSA btw. – Alex K. Commented Jul 4, 2017 at 11:13
• 1 keep also in mind that in most cases, your js code will be visible, and even editable, crypting on the client side (for security reasons) is a bit pointless. Depending on what you want, maybe HTTPS will fit better. – Kaddath Commented Jul 4, 2017 at 11:16
• I have written code as below to make in HmacSHA256 and that is working but but i need in RSASHA256 and for that is not working function aaa(message,secret) { var hash = CryptoJS.HmacSHA256("message", "secret"); var hashInBase64 = CryptoJS.enc.Base64.stringify(hash); return aaa } – user8237460 Commented Jul 6, 2017 at 12:22

3 Answers 3

You need to set the <script> tags inside your HTML.

 function aaa(message,secret) {
     var hash = CryptoJS.HmacSHA256("Message", "secret");
     var hashInBase64 = CryptoJS.enc.Base64.stringify(hash);
     document.write(hashInBase64);
 }

   <script src="https://cdnjs.cloudflare./ajax/libs/crypto-js/3.1.9-1/crypto-js.js">

1. Use script tag in html

2. or you can use jquery to load the script

   $.getScript("YourScriptOrLibraryFile.js", function(){
     //your code
   });
   

Hi my below code is working fine for HmacSHA256 not for RSASHA256,

 function aaa(message,secret) {
 var hash = CryptoJS.HmacSHA256("Message", "secret");
 var hashInBase64 = CryptoJS.enc.Base64.stringify(hash);
 return aaa
 }