What validation step is performed when an ETA enrolls a Token?

When an Enrollment Token Authority (ETA) enrolls a Token, the validation step of in-person identification verification is crucial for ensuring the true identity of the individual requesting the token. This step typically involves the ETA confirming the identity of the person by checking a government-issued ID or another form of official identification in person.

In-person identification verification serves as a strong, reliable method for preventing identity fraud, as it requires individuals to present physical proof of who they are before being granted access to sensitive information or systems. This process is particularly important in scenarios where secure communication and transactions occur, making it essential in the context of Public Key Infrastructure, which relies on the trustworthiness of certificate authorities and user identities.

The other methods such as phone call verification, email confirmation, and letter of confirmation may not provide the same level of assurance regarding the individual’s identity as they can be vulnerable to spoofing or interception. In-person verification stands out as a secure means of establishing verification, which is why it is the correct choice in this scenario.