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PKI
Public Key Infrastructure (PKI) is a framework that manages digital certificates and public-private key pairs, enabling secure communication, authentication, and data encryption over networks. PKI supports various security services such as confidentiality, integrity, and digital signatures. It includes components like Certificate Authorities (CAs), which issue and revoke digital certificates, Registration Authorities (RAs), which verify the identity of certificate requestors, and certificates themselves, which bind public keys to individuals or entities. PKI is essential for secure online transactions, encrypted communications, and identity verification in applications like SSL/TLS, email encryption, and code signing.
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