Door access control via a mobile device

A system for providing door access control via a mobile device, comprising:

• a mobile device configured to provide a specific user identity assigned to the mobile device and a digital identifier that is associated with an application on the mobile device, wherein the application includes a locking mechanism for the application that must be renewed at a first particular time period and wherein the mobile device includes a locking mechanism to lock the device after a second particular time period;
• and
• a door access control system configured to:
• determine an area of a facility to which a user is authorized access;
• and
• receive and confirm that the user identity and digital identifier are valid;
• receive confirmation that the application is unlocked;
• and receive confirmation that the mobile device is unlocked;
• and
• authorize access to the authorized area by the user if the user identity and identifier are valid, and confirmations that the application and mobile device are unlocked.

A method for providing access control via a mobile device, comprising:

• determining an area of a facility to which a user is authorized access;
• and
• receiving a user identity and a digital identifier from a mobile device
• confirming that the user identity and the digital identifier are valid;
• receiving from the mobile device a confirmation that the application is unlocked;
• and
• receiving from the mobile device a confirmation that the mobile device is unlocked.