encrypt email addresses with Javascript

Those pesky spammers. They're out there harvesting our email addresses right off our own web pages. A simple but brilliant way of obfuscating your email address is to encrypt it using a simple substitution cipher and then decrypt it using javascript when the page is displayed. Simple, but hard to break.

A more common method is to encode your email address using HTML entities or hex codes, but it seems like it would be fairly simple for a spambot to use a regular expression search for the html entity for the '@' symbol among a bunch of HTML entities. Those spammers aren't all stupid, you know.

Technorati Tags: email, javascript, security

Comments

[michael jordan shoes]

This article is very well, thank you.

[fyi]

FYI ... there are free web sites out there for encrypted email without a client on your computer. One of these is www.encrytpshield.com it does not allow HTML in your email but its simple enough to use