Copilotfree, in-browser
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Two ciphers for two jobs: one hides data fast, the other gets the shared key across an open wire.
Symmetric vs Asymmetric
Two ciphers for two jobs: one hides data fast, the other gets the shared key across an open wire.
Hashing and Integrity
How a one-way digest proves data has not changed, and why MD5 and raw password hashes fail at it.
PKI and Certificates
Assemble public keys and signatures into trust that scales across the whole web.
TLS in Practice
Where symmetric speed, key agreement, hashing, and certificates meet on one HTTPS connection.