[description] "smartpasslock nfc" is a security lock screen application using the nfc (near field communication). you can protect the device which you are using from a malicious third party. [basic usage] 1. after installation, initial setup starts, and you register ic cards ("suica", "nanaco", "edy" and so on). 2. after you check that nfc is on, the device is locked when device is in sleep mode. 3. the lock screen appears when you push the power button, and you can unlock it by touching it with the registered ic card. you can register some ic cards ("suica", "nanaco" and so on). you can prepare spare ic cards just in case that you lose the registered ic card, you can share the devices only among the people who are permitted to