In the US, insults are not something for which you can be prosecuted. Calling someone a son of a bitch is not defamatory. No one believes you are really the child of a dog. So that is an opinion. Defamation requires a false factual statement. Truth is a complete defense.
What is Public Key Infrastructure (PKI)? Public Key Infrastructure (PKI) is a set of hardware, software, people, policies, and procedures needed to create, manage, distribute, use, store, and revoke digital certificates. In cryptography, a PKI is an arrangement that binds public keys with respective user identities by means of a certificate authority (CA). Wikipedia.org
Public Key Infrastructure (PKI) refers to the technical mechanisms, procedures and policies that collectively provide a framework for addressing the previously illustrated fundamentals of security-authentication, confidentiality, integrity, non-repudiation and access control.ncryption and Decryption. The benefits of PKI are delivered through the use of Public Key Cryptography. A core aspect of Public Key Cryptography is the encryption and decryption of digital data. Encryption is the conversion of data into seemingly random, incomprehensible data.