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PKI (Public Key Infrastructure)

Public Key Infrastructure

A Public Key Infrastructure is basically a setup where we can generate Digital Certificates and manage Public-Key encryption. This setup consist of a set of Hardware & Software, role and policies to create, manage, distribute, use and revoke the Digital Certificate.

The purpose of a Digital Certificate is to Encrypt the Data so that an authorized person can Decrypt the data.



Whenever we are using an encryption and send a data from one end to another end, we need two keys. Public Key & Private Key. Public Key is use for encrypt for the data and Private Key is use for decrypt the Data. An encryption ensure the security layer but it does not ensure that only the right person is decrypting the Data. Any person having the Private Key can decrypt the data. So here we need PKI to ensure that only the right person is having the Private Key.

PKI identify and authenticate the Public Key owner.




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