Who is responsible for protecting the tokens from unauthorized access?

The Trusted Agent holds specific responsibilities within the PKI framework, especially concerning the management and protection of cryptographic tokens. This role includes ensuring that tokens, which often hold sensitive authentication information, are not accessible to unauthorized individuals. Trusted Agents are directly involved in the process of issuing, managing, and revoking digital certificates and tokens. This positions them as critical custodians of these security assets.

In contrast, while other roles like the subscriber, who utilizes the tokens, and the IT administrator, who may facilitate infrastructure, play important parts in the ecosystem, they do not have the same level of responsibility for the tokens' security as the Trusted Agent. The Security Officer may set policies and protocols regarding security but is not responsible for the hands-on management of tokens. Thus, the Trusted Agent’s primary duty in safeguarding tokens from unauthorized access is essential to maintaining the integrity and security of the PKI.