title: Implementations of JavaScript stream ciphers?
body: <p>Are there any free to use implementations of stream ciphers available for JavaScript?</p>
  
  <p>Especially interested in HC-128, Salsa20/12 or SOSEMANUK as these are recommended by <a href="http://www.ecrypt.eu.org/stream/index.html" rel="nofollow noreferrer">The eSTREAM Project</a></p>