$36\mathrm{.}4\%$ complete

Question

An organization has tasked a cyber security technician with enhancing its framework after recently experiencing a cyber breach. What is the value associated with a public key infrastructure $($PKI$)?$

A$.$It summates all revoked and suspended certificates and must be accessible to anyone relying on the validity of Certificate Authority's certificates.

B$.$It is a cryptoprocessor implemented as a module within the central processing unit $($CPU$)$ of a computer or mobile device.

C$.$It is a cryptoprocessor implementing hardware through removable or dedicated form factors, like plug$-$in peripheral component interconnect express adaptor cards.

D$.$It is the framework that establishes trust in using public key cryptography to sign and encrypt messages via digital signatures.