I am happy to announce that a new site has joined the wechall network.
PromptRiddle is from Brazil and it seems to be in english.
I did not check out the site much, but the name is clever. It even has a prompt theme and soundtrack.
The challenge categories shall be Crypto, Stegano and Logic whereas 57 challenges are available.
In the beginning it really looks more like a puzzle/riddle side, not that techy so far... but this seems to change later on.
The authors want to add this in the news:
The game has a hackish-theme and is based on a computer terminal emulator.
The player is in constant communication with Cyber, the fictional main
character of Promptriddle. The passwords are usually encrypted in physical
resources, like in images, in texts and/or in audios. Promptriddle is still
growing and has currently 57 levels online. Each level may be independent
or not from the previous ones.
In the name of Daniel Bentes Ferreira, Eduardo Dadalto Câmara Gomes and Leonardo Cesar Wolter
With pleasure we'd like to announce a new site just got added to the WeChall network: CryptoHack! The site specializes on cryptography challenges and currently offers 80 challenges, which are a good start for anyone interested in cryptography.
I enjoy playing CTF challenges, but often found that I was not available in
the short time period that the CTF was open (usually a weekend). I also
found that often times people would unintentionally (or intentionally)
break a challenge either during or after solving it. I also don't enjoy
enumeration during a CTF, I prefer a straight forward problem to which you
need to solve. As a solution to these frustrations, I created 247CTF which
is a CTF platform that does not have an end date, nor does it have
challenge sharing between different players (each challenge instance is
unique per user), nor is significant enumeration required.
I set a basescore of 10000 and we all wish you a
Time to learn French if you don't know it already: a new site has joined. It's called Énigmes À Thématiques and has challenges in many topics. Get your vin, baguette and other stereotypes and throw them away because you don't have time for that nonsense with this many new challenges.
that experts in the field of cryptography have joined the wechall network.
The new challenge site joining is MysteryTwister, which is part of the famous open-source project CrypTool, known amongst challengers.
CrypTool is an academic approach to teach the mathematics behind cryptography in an experimental manner by offering three offline e-learning programs (CT1, CT2, and JCT), the website CrypTool-Online, and the MysteryTwister crypto contest.
The puzzles on MTC3 are, of course, of cryptographic nature, and quite some of the problems are yet unsolved.
MTC3 has almost 9000 players from all around the world and the ciphertexts are presented in English and German. There is an active forum to discuss the problems in a non-spoiling, moderated manner.
Currently there are 260 challenges by more than 50 different authors, offering everything about crypto and computational number theory I can imagine -- from classical ciphers (Caesar, Vigenère, Hill, ...) to modern symmetric and asymmetric crypto (ORYX, AES, RSA, ECC, Lattice, homomorphic, DSA, ...).
So if you need a warmup or a fresh excourse in cryptography, this surely is a place to look at.
The site is scheduled with 10,000 basepoints, and the wechall score also includes old and inactive challenge sets.
The project lead Bernhard Esslinger is looking forward to your feedback and,maybe, a yet unsolved challenge to be cracked.
We all hope that many of you discover something new while trying out the
site and we wish you...