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Public Key Infrastructure Definition: Public Key Infrastructure (PKI) is a framework comprised of policies, processes, and technologies that enable secure communication by using public key cryptography to authenticate users, devices, and encrypt data.
Public Key Infrastructure (PKI) is a set of hardware, software, policies, and procedures used to create, manage, distribute, use, store, and revoke digital certificates and public-private key pairs. PKI enables secure communication and authentication over insecure networks, ensuring data confidentiality, integrity, and authentication between parties.