Cryptography Today
Navigation base page for the 'Cryptography Today' section.
Section Overview
What is this section about?
Understand the role of cryptography in modern IT infrastructure before migrating to PQC.
Why it matters
Provides foundational context necessary for understanding the next critical steps in the quantum transition.
Recommended Reading Order
How Does Cryptography Work in Modern IT?
2-4 minutes · standardLearn how cryptography quietly protects modern digital life, from browsers, Wi-Fi routers, ID cards, phones, smart devices, VPNs, cloud services, backups, and software updates.
Symmetric vs Asymmetric Cryptography
2-4 minutes · standardUnderstand the difference between symmetric and asymmetric (public-key) cryptography.
What is Key Exchange?
3-5 minutes · standardLearn how computers securely agree on a shared secret over an untrusted network.
What is a Digital Signature?
2-4 minutes · standardUnderstand how digital signatures prove identity and ensure data integrity.
How Does TLS Use Cryptography?
3-5 minutes · standardLearn how TLS and HTTPS use certificates, digital signatures, key exchange, and symmetric encryption to protect secure connections.