Differential Fault Analysis of the BipBip Block Cipher
نویسندگان
1 Department of Mathematics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran
2 CPS2 Lab, Department of Communication, Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
3 CPS2 Lab, Department of Communication, Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
4 CPS2 Lab, Department of Communication, Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
doi
10.22042/isecure.2025.217885چکیده
Differential Fault Analysis (DFA) represents one of the most effective physical attacks against cryptographic algorithms. It exploits the implementation weaknesses by injecting faults. DFA is a cryptographic technique in which an attacker intentionally injects errors into a cryptographic system and leverages the differences caused by these deliberate faults while executing cryptographic algorithms. The attacker can gain insights into the cryptographic operations by comparing the correct and faulty ciphertexts. This research applies DFA to BipBip, an ultra-low-latency tweakable block cipher characterized by a 24-bit tweakable block and a 256-bit master key. Our primary assumption is that the tweak remains fixed within BipBip. This study’s findings reveal that the structural design of the BipBip block cipher is susceptible to differential fault analysis. We demonstrate a significant vulnerability by injecting a precise number of 30 random faults into different states of BipBip. Through an exhaustive search process, we successfully retrieved the master key. Furthermore, this research marks the first application of differential fault analysis in identifying implementation weaknesses within BipBip, highlighting a critical security concern.
