What is the primary use of a digital certificate?

The primary use of a digital certificate is to authenticate and secure online transactions. A digital certificate serves as an electronic "passport" that confirms the identity of the entity (be it a person, organization, or device) engaged in an electronic transaction. It utilizes cryptographic techniques to ensure that the data is transmitted securely and that the parties involved can trust each other.

The importance of digital certificates lies in their role in establishing secure connections over the internet, particularly through protocols such as SSL/TLS. When a user connects to a website that uses HTTPS, for example, the digital certificate helps verify whether the organization behind the website is legitimate. This not only helps protect sensitive information like credit card details but also provides a level of assurance to users that they are interacting with a credible entity.

While there are other functionalities associated with digital technology, such as storing digital currencies or tracking user behavior, these are not the primary roles of a digital certificate. Similarly, managing digital identities is a broader category that encompasses various systems and methods, but at its core, the fundamental purpose of a digital certificate is rooted in ensuring secure and authenticated communication during online transactions.