PKI is a framework that manages digital keys and certificates for secure communication. It provides the infrastructure needed to create, manage, distribute, use, store, and revoke digital certificates.
Main Components:
Certificate Authority (CA): Issues and manages certificates
Registration Authority (RA): Verifies certificate requests before CA signs them
Digital Certificates: Bind public keys to identities
Certificate Repository: Stores and distributes certificates
Certificate Revocation List (CRL): Lists revoked certificates
Key Management: Handles key generation, storage, and lifecycle
PKI enables trust relationships between parties who have never met by establishing a chain of trust through trusted CAs.
Rewriting in plainer words…
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