Welcome to the resource topic for 2015/609
Title:
Experimental Study of DIGIPASS GO3 and the Security of Authentication
Authors: Igor Semaev
Abstract:Based on the analysis of 6-digit one-time passwords(OTP) generated by DIGIPASS GO3 we were able to reconstruct the synchronisation system of the token, the OTP generating algorithm and the verification protocol in details essential for an attack. The OTPs are more predictable than expected. A forgery attack is described. We argue the attack success probability is 8^{-5}. That is much higher than 10^{-6} which may be expected if all the digits are independent and uniformly distributed. Under natural assumptions even in a relatively small bank or company with 10^4 customers the number of compromised accounts during a year may be more than 100.
ePrint: https://eprint.iacr.org/2015/609
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