This topic covers how data is protected in transit and how identity is proved online. Symmetric and asymmetric encryption are compared, including how a public and private key pair is used and why the private key is never shared. You will study quantum cryptography and the problem it addresses. The topic then covers SSL and TLS, digital certificates and the certificate authorities that issue them, and how a digital signature confirms both sender and content.
🔒 Sign in to view this topic's basics.