What is a main reason for in-person meetings between the subscriber and the TA?

In-person meetings between the subscriber and the Trusted Agent (TA) are crucial primarily to ensure proper identification. The PKI framework relies heavily on the principle of verifying the identity of individuals before they can receive a cryptographic certificate. This verification process often requires face-to-face interaction, as it allows the TA to confirm personal identification documents and credentials that the subscriber presents.

By meeting in person, the TA can effectively validate the subscriber’s identity against official documents, which is a vital step in preventing identity fraud and ensuring that only authorized individuals are issued PKI certificates. This process bolsters the trustworthiness of the PKI system, as it ensures that the digital identities being created are legitimate and secure.