On Fri, Jan 05, 2007 at 01:33:34PM +0100, Svip wrote: > I discovered that anyone have yet to discuss HEC's. So I thought I > might as well start this topic. HEC stands for "HTML Encoded > CAPTCHA". It's quite easy, it is using means of HTML and CSS to > create the image which was originally broadcasted in png/jpeg/gif or > perhaps even svg.
Pros: OCR software doesn't tend to come with built in support Cons: If this became widespread, then spammers would quickly write something to turn this into a bitmap. Bandwidth intensive CPU intensive (on the client, but likely on the server too) All the usual problems of visual CAPTCHA Depends on CSS support from the client -- David Dorward http://dorward.me.uk ******************************************************************* List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: [EMAIL PROTECTED] *******************************************************************