News for hackers. Stuff that matters.
Re:Engine Yard Programming Contest - Win an iPhone 3GS PLUS ... by jrockway on Tuesday July 14, 2009 @03:15PM (#704389)
This is the sort of thing that hash functions are designed to avoid.

Since getting closer words does not get you a closer hash, usual optimization algorithms (like genetic algorithms, simulated annealing, etc.) are not going to be helpful.

Perhaps I'm missing something, but I think brute force and luck are going to win this contest, assuming that SHA1 is not broken between now and July 20th. If you want an iPhone 3G S, you should probably just head over to the Apple store and buy one and spend your valuable time on something else.

Re:Engine Yard Programming Contest - Win an iPhone 3GS PLUS ... by sanj on Tuesday July 14, 2009 @04:14PM (#704519)
I'm aware that this is what hashes are supposed to avoid. However, many crypto attacks seem to build on weaknesses in their design.

Hence my question.

Re:Engine Yard Programming Contest - Win an iPhone 3GS PLUS ... by javanix on Tuesday July 14, 2009 @09:55PM (#704977)
If someone had come up with something like you suggested it would have been a lot bigger news and this "contest" really wouldn't have happened.