Authentication system using nfc tags

A method for authenticating access to an access point, the method comprising:

• storing data in a memory of a Near-Field-Communication (NFC) tag, the NFC tag configured for bisynchronous communication when within defined physical range of a NFC reader and writer coupled to an access point;
• in a first phase of authentication:
• reading, via the NFC reader and writer, the data in the memory of the NFC tag when the access point is activated;
• and
• analyzing the data to authenticate access to the access point;
• in a second phase of authentication:
• receiving a user input at the access point;
• analyzing the user input at the access point;
• and
• granting access to the access point based on the analysis of the user input and success of the first phase of authentication.

A non-transitory machine readable medium storing instructions that when executed causes a processor to implement a method for authenticating access to an access point, the method comprising:

• storing data in a memory of a Near-Field-Communication (NFC) tag, the NFC tag configured for bisynchronous communication when within range of a NFC reader and writer coupled to an access point;
• in a first phase of authentication:
• reading, via the NFC reader and writer, the data in the NFC tag when the access point is activated;
• and
• analyzing the data to authenticate access to the access point;
• in a second phase of authentication:
• receiving a user input at the access point;
• analyzing the user input at the access point;
• and
• granting access to the access point based on the analysis of the user input and success of the first phase of authentication.