Patent ID: 8907794
Filing Date: 2014-12-09
Classification: E05B,G07C,Y10T

Abstract:
1. A cryptographic lock for securing an asset, comprising: a shape memory alloy (SMA) having a first and second phase, said first phase inhibiting access to an asset and said second phase allowing access to said asset; wherein said first phase is a Martensite phase of said SMA and said second phase is an Austenite phase of said SMA; and an RFID transponder, coupled to said SMA, configured to receive an authentication signal from an RFID transceiver and, based thereon, energize said SMA to temporarily change said SMA from said first phase to said second phase, wherein said cryptographic lock secures said asset within a cavity of a body of a secure container, said secure container further having a lid secured by said cryptographic lock through employment of said first phase, wherein said RFID transponder is a Near Field Communication (NFC) transponder, wherein said RFID provides current to the SMAs to energize the SMA the through the heat generated by the current provided to the SMA, transform the SMA , from the Martensite phase and to the Austenite phase, wherein said RFID transponder generates about 1.8 mA at about 2 volts for said SMA upon receipt of said authentication signal, and wherein said 1.8 mA at about 2 volts has been captured or redirected by the RFID transponder to transform the SMA.