Tap on running cryptolink  

Faked states attack on quantum cryptosystems

a paper written in Quantum Cryptography group at the Department of Electronics and Telecommunications

Vadim Makarov and Dag R. Hjelme, "Faked states attack on quantum cryptosystems," Journal of Modern Optics 52, 691-705 (2005).


A new type of attack on quantum cryptography systems is proposed. In this attack, Eve utilizes various optical imperfections in Bobís scheme and constructs light pulses so that Bob does not distinguish his detection results from normal, whereas they give Bob the basis and bit value chosen at Eveís discretion. Applying this attack to systems with passive basis choice on Bobís side is considered. Also, a general workflow of breaking into a running quantum cryptolink using this or Trojan horse attack is discussed.


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Vadim Makarov