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Recently, a secure key exchange technique was developed, in which both communicators (Alice and Bob) randomly select between two known resistors. By measuring the resulting thermal noise on a shared wire, they can each determine the resistor chosen by their counterpart, while the eavesdropper (Eve) cannot determine this. By repeating this transaction, they can create a common secure key, one bit a time. Although theoretically elegant, this approach is difficult to realize in practice. In thisdoi:10.1109/iccd.2011.6081445 dblp:conf/iccd/LinIJK11 fatcat:kchvp5tfuze4lgqymw3a4gnmkm