Announcing the 2017 Winners!

We are proud to announce the winners of the 2017 Underhanded Crypto Contest! First Place: JP Smith and Will Song Second Place: Neville Longbottom The announcement was made by Adam Caudill at the DEF CON Crypto & Privacy Village on Friday, July 28th; below is the approximate text of the talk given at the event, the slides are also available. Slide 1: Hi everyone, I’m Adam Caudill, and...

2017 Winner: JP Smith and Will Song

The well-deserved winner of the 2017 Underhanded Crypto Contest is JP Smith and Will Song for a curve generator for a SIDH, a post-quantum key exchange. This curve generator appears on the surface to function properly, but in reality in certain circumstances the curve generated isn’t supersingular – this doesn’t pose a threat if the attacker is using classical computers, but...

2017 Runner-Up: Neville Longbottom

In second place for the 2017 Underhanded Crypto Contest is “Neville Longbottom” for an application that uses AES to encrypt data, but has special behavior for long messages. For this entry, the author was awarded a prize of $500 provided by NCC Group Cryptography Services; at the authors request, the prize has been donated to the EFF. From the author: Introduction My submission to the...

New Deadline: July 5th, 2017

To give you all some more time to work on your entries, we’ve extended the deadline to Wednesday, July 5th, 2017. We chose this new date because it’s after the Canada Day long weekend and after Independence Day in the United States. If you’ve already submitted an entry, you’re welcome to re-submit it before the new deadline if the extra time allows you to make improvements.

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