SBIR Phase II: MEMS for Secure RFID Applications

该SBIR第二阶段研究项目将演示一种有效的？阿尔法？基于MEMS的RFID和其他电子安全应用安全方法的原型。MEMS谐振器具有很窄的带宽和很高的频率，不同的谐振器有不同的频率。这种自然频率变化可以用来唯一地识别谐振器，并使克隆特定信号变得极其困难？从本质上讲，这是一种“声纹”。这种RFID安全方法克服了加密的缺点，包括更复杂和更昂贵的标签以及管理加密密钥的需要。用于RFID标签的MEMS谐振器具有独特、安全、成本效益高、与CMOS兼容、读取速度快、低功耗要求和低开销等特点。该研究项目将在材料温度波动的真实环境中演示，工作的真空封装的MEMS芯片与连接的天线，低成本的原型读取器，最大10 cm的读取范围，以及读取器和系统软件，以提取MEMS响应信号，并与存储的信号进行比较，用于芯片识别。该项目将对人员和货物的身份识别安全产生广泛的影响。例如，在实施美国护照时使用的RFID标签最近被克隆，这使这些文件的安全性受到质疑。由于MEMS谐振器不能克隆，它们可以提供重要的安全保证，以经济地验证给定的护照。MEMS谐振器还可以用来对药品进行经济鉴定，因为假药越来越普遍(世界卫生组织预计2010年假药市场规模将达到750亿美元)，并已导致死亡。

This SBIR Phase II research project will demonstrate a working ?alpha? prototype of a MEMS-based approach to security for RFID and other electronic security applications. MEMS resonators have very narrow bandwidths and high frequencies which vary from resonator to resonator. This natural frequency variation can be used to uniquely identify a resonator, and makes cloning a specific signal extremely difficult ? in essence creating a ?voiceprint?. This approach to RFID security overcomes the drawbacks of encryption which include more complex and expensive tags and the need to manage encryption keys. MEMS resonators for RFID tags are unique, secure, cost effective, CMOS compatible, and fast to read, with low power requirements and low overhead. This research project will demonstrate in a real environment with material temperature swings, working vacuum encapsulated MEMS chips with attached antennas, a low-cost prototype reader with maximum 10cm read range, and reader and system software to extract MEMS response signals to compare with stored signals for chip identification. This project will have broad impact on the security of identification of both people and goods. For example, the RFID tags used in the implementation of US passports were recently cloned which calls into question the security of those documents. Since MEMS resonators cannot be cloned, they can provide significant security assurance to economically validate a given passport. MEMS resonators can also be used to economically authenticate pharmaceuticals since counterfeit drugs are increasingly prevalent (the World Health Organization projects a $75 billion counterfeit market in 2010) and have caused deaths.