System and method for performing payment transactions, verifying age, verifying identity, and managing taxes

摘要: Age authentication and management of taxes for a merchant. The merchant can verify the age customer based on customer's use smartcard that is obtained from validation authority. may contain certificate related to user. By utilizing smartcard, user go an online, virtual, or brick-and-mortar buy goods requiring restrictions. When proceeds purchase good service verification, merchant' s application obtain information request authority authenticating user's age. Further, also remit pay behalf location other stored in profile.