Offical URL:

Crypto CTF is an online competition for hackers to test, evaluate, and expand their cryptography exploiting skills. In this CTF we will provides various crypto challenges regarding modern cryptography techniques.
All crypto lovers are most welcome
CryptoCTF is a revenge for everlasting complaints by CTF participants about crypto challenges in CTF contests. In this brand new tournament we are trying to provide the crypto lovers with fun and challenging pure crypto tasks to squeeze their heart and test their passion for cryptography.
Each task will be based on a particular cryptographic primitive or it will include a direct application of cryptography in other fields.
The organizers of this tournaments generously offer their skills knowledge to design original Crypto tasks and challenges for similar contests.
Long Live Crypto

CTF events

Crypto CTF 202024.05
Crypto CTF 201924.05
Related tags: web pwn php crypto stego hacking forensics gpg base64 android python xor des rsa prime bruteforce c++ reverse engineering metasploit programming c engineering security misc pwnable sql exploit stegano math networking ruby prng http penetration malware windows network pentesting guessing html being linux analysis factoring sleeping rev nmap embedded databases shellcode overflow fermat gdb png reversing cryptography-rsa tor electronics substitution sleep aws attacks buffer static ecc crypt c knapsack esper reverse criativas gambiarras pgp rotated gauss rsa-like matrix secret-sharing movfuscated virtualbox number_theory gcd modular-arithmetic polynomial linear_algebra randomness serverless 35c3 cryptoapi windowsbinary gc hill arithmetic oaep pow boneh-durfee polynomials goldwasser-micali complex binomial frequency