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#News(Security) [ via IoTForIndiaGroup ]
[This is Physicaly Uncloneable Function (PUF) approach ]
The need for secure electronic devices is pervasive at all levels; from banking transactions to defence and surveillance applications. Recent reports of the USA suspecting Chinese chip manufacturer of spying or commercial US chips having deep security bugs, brings to the fore the importance of self-reliance in technology to develop such electronic devices. In one such effort, Prof. Udayan Ganguly and his group from the Indian Institute of Technology Bombay (IIT Bombay) have developed a hardware-based encryption system to safeguard storage of data and e-commerce and banking transactions. Their innovation has been awarded the PK Patwardhan Technology Development Award by IIT Bombay.
In the new encryption technology developed by Prof. Udayan Ganguly’s group, the researchers generate a unique key, comprising a string of bits, for every electronic chip. The encryption unit of each chip contains an array of tiny capacitors that store electric charge. All the capacitors have an insulator material sandwiched between two metal plates. When a voltage is applied to this collection of capacitors, the insulator layer in some capacitors breaks down randomly
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