A customer wants to transfer an electronic ticket that includes customer security
features to another person, he requests that the merchant unbind the security features
from the ticket identifier. The merchant verifies the identity of the customer
based on a digital certificate or other customer identifier. If the customer is
allowed to transfer the ticket, the merchant unbinds the ticket identifier from
the security features. The customer can then transfer the ticket to a second ticket
holder. If the second ticket holder presents the ticket to the merchant for admission,
the merchant determines that the ticket identifier is unbound and admits the ticket
holder. To enhance security in case of loss or theft of the electronic ticket,
the second ticket holder can request that the merchant rebind the ticket to security
features corresponding to the second ticket holder.