This free program uses a self-synchronizing stream cipher to create encrypted html files, which can only be viewed by peolple with the correct password. The decryption is carried out by a JavaScript implementation of the cipher, so the encrypted pages are compatable with any JavaScript enabled web browser.

Features
Creates password protected web pages.
Passwords can be stored on a local machine with a cookie.
All the javascript required to decipher is stored in a seperate *.js file, which can be shared by any number of encrypted pages.
Can be used to prevent changes being made to web pages.
Key size is 100¹¹, equivalent to 73-bits.