X.509 Digital Certificates (CloudMonk.io)

X.509 Digital Certificates

The Online Certificate Status Protocol (OCSP) stapling, formally known as the TLS Certificate Status Request extension, is a Internet standard for checking the revocation status of X.509 digital certificates.

X.509 digital certificates are a standardized format for public key certificates used in secure communication protocols, such as SSL/TLS, S/MIME, and IPSec. Governed by the X.509 standard defined by the International Telecommunication Union (ITU), these certificates contain information about the identity of the certificate holder, their public key, the digital signature of the certificate authority (CA), and other X.509 metadata. X.509 certificates are used to authenticate entities in a network, establish secure connections, and verify integrity and verify authenticity of transmitted data. They play a crucial role in web security, email encryption, digital signatures, and VPNs. X.509 certificates are issued by trusted CAs, and their X.509 certificate validity can be verified using public key infrastructure (PKI). The widespread adoption of X.509 certificates has contributed to the establishment of secure communication channels on the internet and other networks. [https://en.wikipedia.org/wiki/X.509]