paul-2004

Predicting and controlling correlations in differentials of addition mod 2^{n}

This is a paper I wrote in collaboration with Scott Fluhrer in 2005. It was not accepted for FSE 2006; it would have been better if I hadn’t waited until 2014 to make it public, but better late than never. It arose from a discovery I made when developing attacks on Salsa20 for “Truncated differential…

stairs

A study in Scala

Cards on the table: I like Scala. Right now it’s my go-to general purpose programming language, but I know that many people have a dim opinion of it, or appreciate its positives but are heavily conflicted by its negatives. Actually I do put myself in that latter camp, though I think I’ve got deep enough…

facebook

Facebook android security fail

I wrote about the Ocado android applications ridiculous privileges  list a while back. Facebook has reminded me of it: Facebook app now reads your smartphone’s text messages? THE TRUTH. Facebook want to be able to capture the two factor auth message straight from your text messages, so they ask for access to all your text messages.…