Encryption Types
AES, RSA, PKI, and digital signatures—the building blocks of secure communication.
1
Symmetric Encryption (AES)
ReadingHow AES uses one shared key for fast encryption—and how keys must stay secret.
15 min
+19 XP
2
Asymmetric Encryption (RSA)
ReadingPublic/private key pairs: encrypt with one key, decrypt with the other.
15 min
+19 XP
3
Public Key Infrastructure (PKI)
ReadingCertificates, trust chains, and how PKI connects identities to public keys.
15 min
+19 XP
4
Digital Signatures
ReadingProve who signed a message and that it was not altered in transit.
15 min
+19 XP
5
Quiz — Encryption
Practice Quiz10-question quiz on AES, RSA, PKI, and digital signatures.
10 min
+19 XP