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RFC 2818 - Glossary

Glossary​

Core Terms​

TLS (Transport Layer Security)

  • Transport layer security protocol, successor to SSL

SSL (Secure Sockets Layer)

  • Predecessor to TLS, now deprecated

Certificate

  • Digital document containing public key and identity information

CA (Certificate Authority)

  • Certificate authority that issues trusted certificates

Closure Alert

  • TLS mechanism for secure connection closure

Premature Close

  • Improper TLS connection closure

Man-in-the-Middle Attack

  • Attacker intercepts and potentially modifies communication

subjectAltName (Subject Alternative Name)

  • Certificate extension specifying additional hostnames

Common Name

  • CN field in certificate subject

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