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As a typical semi-invasive attack against cryptographic primitives, laser fault injection (LFI) has emerged as a serious threat for security ICs. However, very few countermeasures against LFI have been proposed in previous literature. In this paper, a logic-level countermeasure for sensing the malicious laser injection on FPGA is presented. The implemented logic consists of a digital inverter ring...
Electromagnetic injection (EMI) is a powerful and precise technique for fault injection in modern ICs. This intentional fault can be utilized to steal secret information hidden inside of ICs. Unlike laser fault injection, tedious package decapsulation is not needed for EMI, which reduces an attacker's cost and thus causes a serious information security threat. In this paper, a PLL-based sensor circuit...
This paper presents a standard-cell-based semiautomatic design methodology for a new conceptual countermeasure against electromagnetic (EM) analysis and fault-injection attacks. The countermeasure, called the EM attack sensor, utilizes LC oscillators that react to variations in the EM field around a cryptographic LSI caused by a microprobe brought near the LSI. A dual-coil sensor architecture with...
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