There may be a bug.

[AdrianNostromo]

Hello,
I am using this and tested it against a c++ version and it doesn't give the same result.
Comparing to the c++ version and the wikipedia c++ example code, there is a line that is different.

In the file salsa20.js, the following line seems wrong.
for (i=0; i<rounds; i++){

On the wikipedia version it is:

// 10 loops × 2 rounds/loop = 20 rounds
for (i=0; i<rounds; i+=2) {

Ps. Thanks for taking the time to write this.

[neoatlantis]

Hello,

I finally had some time to look into this :) This was my misinterpretation on "rounds" and "double rounds". Indeed the core function of Salsa20, in its expanded form as given on https://cr.yp.to/salsa20.html, has in each loop a "double round".

As of version v0.2.2 this class should be init'ed with

const salsa20 = new Salsa20({ doubleRounds: 10 });

or

const salsa20 = new Salsa20({ rounds: 20 });

And I hope this will fix the confusion.