Future Business Leaders of America (FBLA) Cybersecurity Practice Test

What does public key infrastructure (PKI) enable?

1. The secure exchange of data and user identification

2. The development of intranet systems

3. Local storage of encryption keys

4. The permanent storage of public data

The correct answer is: The secure exchange of data and user identification

Public Key Infrastructure (PKI) is a framework that facilitates secure communications and transactions over networks through the use of cryptographic techniques. It enables the secure exchange of data and user identification by providing a system for generating, managing, distributing, and revoking digital certificates. These digital certificates, which include public keys, are used to authenticate the identities of individuals or entities, allowing them to engage in secure communications. In practical terms, when two parties want to communicate securely, PKI allows one party to verify the identity of the other through their digital certificate. This process ensures that the data transmitted between them is encrypted and that both parties can trust each other's identities. By establishing a chain of trust through trusted certificate authorities, PKI supports essential security protocols in various applications, including email encryption and secure web browsing. The other options do not accurately reflect the primary purpose of PKI. It does not specifically enable the development of intranet systems, nor does it focus on the local storage of encryption keys or the permanent storage of public data. Instead, its primary goal remains centered around the secure exchange of information and the verification of identities, which is fundamental in today’s digital landscape where security and trust are paramount.