It stands for Public Key Infrastructure. It has to do with security and data encryption.
PKI must use asymmetric encryption because it is managing the keys in many cases. This implies the use of public and private key pairs, which is asymmetric.
health certificate
PKI is a set of procedures in order to establish a secure information. The six components are: Revocation, Certificate Authority, Certificate Publishing, Registration Authority, PKI aware application, Certificate Management System.
Public Key Infrastructure (PKI) in an integrated system of software, encryption methodologies, protocols, legal agreements, and third-party services that enables users to communicate securely an protect information assets.
Firstly you require a program to do the encryption and ensure your system is compatible. Many programs are available that offer this capability and the steps would vary.
A critical concept common to all PKIs is the use of digital certificates issued by a trusted entity, known as a Certificate Authority (CA), to validate the identities of users and devices. These digital certificates contain public key information and are used to establish secure communications through encryption and digital signatures. Trust in the PKI is based on a hierarchical system where higher-level CAs vouch for the identities of lower-level CAs, creating a chain of trust.
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You be referring to a CAC Card. This was a common access card, also used for computer security by the DoD and military that doubles as an ID Card in some cases. It's used for PKI (Public Key Infrastructure) encryption key holding as well in some cases.
system for encrpting sensitive information
One can receive a PKI certificate, or a public-key infrastructure certificate, is by digitally signing and publishing the public key bound to a given user.
Encryption