integrating java code with a browser

This question is a general one.

I have java code for hmac(sha1 and md5) coding and a client server key exchange protocol(both codes in java).

Now i want to embed/integrate t开发者_C百科his with a browser to implement password hashing. Any ideas how i might proceed about it?

Java applets run in the browser.

But note that applets are a bit tedious to run, and you can have md5/sha1 with javascript.