[erlang-questions] crypto in erlang and javascript

[Joe Armstrong]

Hello,

I'm looking for "pairs" of crypto algorithms. I'm making a
web authentication framework and I want
crypto algorithms written Javascript running in the browser
to interact with Erlang versions written in the server.

So far I have got RSA and MD5 running in both JS and Erlang

I now want a decent symmetric encryption algorithm.

Any ideas?

I want both side to be reasonably efficient with non-restrictive
licenses.

/Joe