Abstract: An system and a method utilizing a quick response (QR) code to facilitate the transaction of restricted items. The system receives information about a first user from the first user. The system interfaces with systems to determine whether the first user can purchase the restricted items. The system creates a record for the first user and generates a QR code linking the user information to the database record. The system creates a record for a second user, linked to the record for the first user, authorizing the second user to act on behalf of the first user. A second user may utilize the QR code, and identifying information at a point of sale terminal to complete the transaction. Once the transaction is completed, the first user is presented with an indication whether the QR code is still valid.

Abstract: Exemplary embodiments provide an authentication system for granting access to an access point. The system includes a Near-Field-Communication (NFC) tag, a NFC reader and writer, and an access point coupled to the NFC reader and writer. The NFC reader and writer is configured to read the NFC tag when the access point is activated and the NFC tag is within range of the NFC reader and writer. In a first phase of authentication, the NFC reader and writer is configured to read and analyze data stored in the memory of the NFC tag to authenticate access to the access point. In a second phase of authentication, the access point is configured to receive and analyze a user input, and grant access to the access point based on analyze of the user input and success at the first phase of authentication.