What is PKI?

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PKI stands for Public Key Infrastructure and is the set of roles, policies, hardware, software and procedures that build a framework to issue trusted digital identities to users, servers and/or things.

The PKI framework is governed by a set of policies and procedures that defines the level of security.

A PKI typically includes a combination of software and hardware components, and together they implement functions for Certificate Authorities, Registration Authorities and Validation Authorities. These, in turn, are then responsible for issuing and lifecycle manage trusted identities for users, servers and things.

In everyday life, you use PKI when doing things online such as:

  • Logging in to your bank account
  • Shopping on an e-commerce site
  • Using an e-passport.

PKI illustration

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