Difference between revisions of "Cybersecurity"

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Revision as of 17:27, 23 October 2020

Cybersecurity is a Division B and Division C event that was first run as a trial event at the 2021 BEARSO Invitational to replace Ping Pong Parachute. The event consists of two parts: a written test on Cryptography and Web Architecture, and a hands on task on Cryptography and Programming.


Hash algorithms

One-way functions. The most famous family is NIST's Secure Hash Algorithms (SHA).


Quantum computers can break some cryptographic functions (e.g. prime factorization through Shor's algorithm). Post-quantum cryptography uses properties of quantum mechanics, such as entanglement, to protect against quantum computer attacks.

Web architecture


Mozilla's web docs tend to be the most up-to-date repository for web technologies information. W3C Schools and Stack Overflow often don't follow industry best practices.


Modern websites use HTTPS, a descendant of the Hypertext Transport Protocol (HTTP) that incorporates encryption through Transport Layer Security (TLS).


Primality algorithm:


Rules in the BEARSO Invitational