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Introduction to Public Key Infrastructure

What are the uses of public key infrastructure?
Public key infrastructure is used to protect information assets by providing a mechanism for authenticating and encrypting communications. PKI can be used to protect email messages, web traffic, and other data transmissions.
What does public key infrastructure encompass?
A public key infrastructure (PKI) is a type of infrastructure that ensures the secure exchange of sensitive data, the creation of digital identities for users, devices, and applications, and the end-to-end protection of end-to-end communications. A digital certificate is issued by a public key infrastructure, also known as a PKI.
What is the difference between public key and private key?
In a encryption method, the private key is used to encrypt a message, whereas the public key is used to decrypt it. Because the recipient is only aware of the message, he or she cannot read it. It not only increases network security but it also allows for the identification of public key infrastructure.

What are the uses of public key infrastructure?