Source: wikibot/x-509
= X.509
{wiki=X.509}
X.509 is a widely used standard for public key infrastructure (PKI) that defines the format of public key certificates. It is part of the ITU-T X.500 series of standards for directory services. X.509 certificates bind an entity's identity to a public key, allowing secure communication and authentication over networks. \#\#\# Key Features of X.509: 1. **Certificate Structure**: An X.