New challenge "stoic_thompson" submitted by Gordon F. @2019Ches CTF. Check out: bit.ly/31wE18N #WhibOx

Week 12/22: 18 AES challenges (1 standing), 69 breaks, 11 inversions. Top strawberries: 666 friendly_edison by Mugiwara (broken), 375 dazzling_panini by RickSanchz (broken), 362 cranky_mccarthy by Mugiwara (broken). Top bananas: 668 Patat0r, 665 jean_onche, 375 simco3 @2019Ches

Slides of WhibOx 2019 are online! cryptoexperts.com/whibox2019/

New challenge "eager_euler" submitted by BugsBunny @2019Ches CTF. Check out: ift.tt/2Z717RS #WhibOx

New challenge "wonderful_feynman" submitted by white_mountain @2019Ches CTF. Check out: ift.tt/2JK2JvC #WhibOx

Only a few days left to submit AES challenges… hurry up if you’re preparing something! Be reminded that August 1st is the posting deadline: after that date, you won’t be able to submit new challenges but just break/invert them. Also, 3 challenges are still unbroken. 🙃 @2019Ches

New challenge "brave_swanson" submitted by MMS @2019Ches CTF. Check out: ift.tt/2JSnPrG #WhibOx

New challenge "hopeful_kirch" submitted by cryptolux @2019Ches CTF. Check out: ift.tt/2Y7Je8Y #WhibOx

New challenge "blissful_fermi" submitted by alice1 @2019Ches CTF. Check out: ift.tt/2OtsuEM #WhibOx

New challenge "wizardly_allen" submitted by Gordon F. @2019Ches CTF. Check out: ift.tt/2YalwsY #WhibOx

New challenge "xenodochial_northcutt" submitted by RickSanchz @2019Ches CTF. Check out: ift.tt/2YAOH7G #WhibOx

New challenge "goofy_lichterman" submitted by cryptolux @2019Ches CTF. Check out: ift.tt/331G45E #WhibOx

New challenge "elegant_turing" submitted by cryptolux @2019Ches CTF. Check out: ift.tt/334QwcE #WhibOx

Just 45 mn left before the posting deadline... hurry up! whibox.cyber-crypt.com @2019Ches

Only a few hours left before the WhibOx Contest 2019 is finally over!! Will we see white box challenges survive for the first time? Check it out! whibox.cyber-crypt.com/dashboard @2019Ches

Strawberries just wan the WhibOx Contest 2019! Is this a new hope for white box cryptography? An amazing finish line - check it out whibox.cyber-crypt.com/dashboard @2019Ches

Hi everyone! We're back :-) Already 9 submissions, all broken within the hour... Who's gonna change the deal?! contest2021.whibox.io

The submission deadline for white-box ECDSA challenges is approaching: Sunday 22/08 at 00:00 = Saturday 21/08 at 23:59:59 + 1s (UTC). Time to debug and submit your code! 😉

The WhibOx contest is back in 2024! 🍓⚔️🍌 As usual white-box designers (🍓) and white-box attackers (🍌) will fight a relentless battle. The battlefield will be AES (as in 2017 and 2019) or ECDSA (as in 2021). Which one should it be? Please vote!

🙏 Thanks everyone for voting! 🔊 The WhibOx contest is back with ECDSA for this 4th edition. 🗓️ Tentative schedule: - Server open to submissions → 26/05 23:59 AoE - Deadline for implementation submissions → 08/08 23:59 AoE - Deadline for breaking → 01/09 23:59 AoE