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Monthly Archives August 2009

Javascript compression with unicode characters

For some random reason I was making a base999 number compression function, I think it was because someone posted on sla.ckers about base 62. I wanted to see how far I could compress the numbers using a higher range of characters, then it hit me. Why not use it for js compression
You see [...]

Posted 15 August 2009 † Gareth Heyes § Security § javascript ‡ Comments (3)

Fresh prototypes on all browsers

So there’s a well known technique for getting Object prototypes that are not from the current window which results in a fresh prototype. You use iframes to copy the required prototype from the iframe.contentWindow BUT…It doesn’t work in all browsers and it’s pretty silly having to copy each object manually, why not just use the [...]

Posted 11 August 2009 † Gareth Heyes § Security § javascript ‡ Comments (0)

Creating HTML listeners with JSReg and Hackvertor

JSReg has grown up a bit since I released the first version. You can now use it to monitor malicious javascript. I have a very basic example of this in Hackvertor, at the moment Hackvertor doesn’t support callbacks so it’s a bit of a hack but you will get the idea.
I use __defineSetter__ to [...]

Posted 04 August 2009 † Gareth Heyes § Security § hackvertor § javascript ‡ Comments (0)