A collection of Web pages and programs in the JavaScript
language perform military-grade encryption (256 bit secret key
AES)
entirely within your Web browser—you needn't
download nor install any software, and nothing is sent to
any Web site when you encrypt or decrypt a message. You
can download the page source and JavaScript programs to your
own computer and use them even when not connected
to the Internet. Companion pages provide a
text-based steganography facility and key generator
suitable for preparing one-time key lists. Please
visit the
JavaScrypt Home Page
for details, or the
JavaScrypt Tutorial
for an overview of the available facilities.