Fault Sensitivity Analysis

Provided by: International Association for Cryptologic Research
Topic: Security
Format: PDF
In this paper the authors propose a new fault-based attack called the Fault Sensitivity Analysis (FSA) attack, which unlike most existing fault-based analyses including Differential Fault Analysis (DFA) does not use values of faulty ciphertexts. Fault sensitivity means the critical condition when a faulty output begins to exhibit some detectable characteristics, e.g., the clock frequency when fault operation begins to occur. They explain that the fault sensitivity exhibits sensitive-data dependency and can be used to retrieve the secret key.

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