The Public Key Infrastructure (PKI) is a complex authentication technique that functions by using digital certificates. These certificates provide a certain level of trust to the communication as they authenticate the sender. PKI uses the concept of Certificate Authority (CA) for the central entity that issues certificates to users. The CA confirms the identity of every user and every user in an organization trusts the CA.
Some situations might not require a central certification authority and one alternative to this approach is using a “web of trust.” With this approach, users sign certificates for people they know and those people . . .
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