Public Key Infrastructure refers to a framework consisting of standards and services to enable secure, encrypted communication and authentication over potentially insecure networks such as the Internet.
Related Terms: Secret Key, Public Key
Source: CNSSI 4009, IETF RFC 2828, Federal Bridge Certificate Authority Cross-certification Methodology 3.0, InCommon Glossary, Kantara Identity Assurance Framework 1100, NIST SP 800-63 Rev 1