What does Public Key Infrastructure (PKI) aim to improve?

Public Key Infrastructure (PKI) is primarily designed to enhance the confidentiality and security of information exchanged over networks. It achieves this by utilizing cryptographic techniques to ensure that data is encrypted, allowing authorized users to access it while keeping it secure from unauthorized access.

In a PKI system, public and private keys are generated for users, enabling secure communication through encryption. When data is transmitted, it can be encrypted using the recipient's public key and can only be decrypted by their corresponding private key, maintaining its confidentiality during transmission. This mechanism also helps in ensuring the integrity of the data, as any tampering with the encrypted message can be detected.

While speed of data transmission, reliability of server connections, and usability of mobile applications are important aspects of network security and functionality, they are not the primary focus of PKI. The main objective remains centered on establishing a trusted environment for secure communications, thereby directly addressing the issue of confidentiality in data exchanges.