javascript - Using Crypto.js in meteor - Stack Overflow

I am trying to include some crypto.js libraries in a meteor js app (meteor version 0.6.4.1).

• .1.2/build/rollups/hmac-sha256.js
• .1.2/build/ponents/enc-base64-min.js

When I copy and paste the contents into the server/main.js file it works fine, but this makes it very un-readable.

When I put the libraries in separate files in the server directory (I also tried placing them in the lib directory) I get the error ReferenceError: CryptoJS is not defined.

gist of server/main.js:

Meteor.methods({
    encrypt:function(bundleID){
        return CryptoJS.HmacSHA256(string, 'something');
    }
});

I also tried changing the first line of the hmac-sha256.js file from

var CryptoJS=CryptoJS||function(h,s){...

to:

CryptoJS=CryptoJS||function(h,s){...

to make it global, but this also did not work. How do I include this library properly?

I am trying to include some crypto.js libraries in a meteor js app (meteor version 0.6.4.1).

• http://crypto-js.googlecode./svn/tags/3.1.2/build/rollups/hmac-sha256.js
• http://crypto-js.googlecode./svn/tags/3.1.2/build/ponents/enc-base64-min.js

When I copy and paste the contents into the server/main.js file it works fine, but this makes it very un-readable.

When I put the libraries in separate files in the server directory (I also tried placing them in the lib directory) I get the error ReferenceError: CryptoJS is not defined.

gist of server/main.js:

Meteor.methods({
    encrypt:function(bundleID){
        return CryptoJS.HmacSHA256(string, 'something');
    }
});

I also tried changing the first line of the hmac-sha256.js file from

var CryptoJS=CryptoJS||function(h,s){...

to:

CryptoJS=CryptoJS||function(h,s){...

to make it global, but this also did not work. How do I include this library properly?

• javascript
• include
• global-variables
• meteor

Share Improve this question Follow asked Jul 26, 2013 at 21:18 Bill JohnstonBill Johnston 1,20811 gold badge1515 silver badges3333 bronze badges

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3 Answers 3

Sorted by: Reset to default 4

In your application dir create folder 'packages/cryptojs' and put there files:

• hmac-sha256.js
• enc-base64-min.js
• package.js

packages / cryptojs / package.js:

Package.describe({
  summary: "CryptoJS"
});

Package.on_use(function (api, where) {
  api.add_files(['hmac-sha256.js'], ['client','server']);
  api.add_files(['enc-base64-min.js'], ['client','server']);
});

You need to modify hmac-sha256.js by changing beginning of line 7 from:

var CryptoJS=CryptoJS||function(h,s){

to:

CryptoJS=function(h,s){

After that, you can use it:

var hash = CryptoJS.HmacSHA256("Message", "secret");
var hashInBase64 = CryptoJS.enc.Base64.stringify(hash);    
console.log(hashInBase64)

Example source

I followed as parhelium's guide, but still not work, then I found new way to fix this issue: Just replace line 7 in hmac-sha512.js to this one to globalize CryptoJS object:

this.CryptoJS=this.CryptoJS

Fix the same for other cryptojs. To use with Base64, you must make sure the base64.js is loaded after other libraries.

The reason this is happening is due to the variable scoping in meteor. Try putting the cryptojs library files in /server/patibility. This way the cryptojs library can be accessed in other files.

You could also get it working without putting it in /patibility by removing the var used in the cryptojs source files. The thing is if you do this its harder to keep the files up to date.