A Low Area Probing Detector for Power Efficient Security ICs

Weiner, Michael P.; Manich, Salvador; Sigl, Georg

doi:10.1007/978-3-319-13066-8_12

Cited by 3 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concept of an LAPD by Weiner et al [8] fills this gap; here, we provide a detailed analysis of the LAPD including a reliability analysis with respect to manufacturing variations and varying environmental conditions.…”

Section: Limitations Of Previous Workmentioning

confidence: 99%

“…Considering a set of lines that are symmetric with respect to dimensions and timing, probing one of the lines introduces a small timing asymmetry between the probed line and the unprobed lines. The LAPD [8] can measure such timing differences and raise an alarm if they are beyond normal noise or manufacturing variations. This increases the complexity of a microprobing attack.…”

Section: Low Area Probing Detectormentioning

confidence: 99%

“…We have presented the concept of a low area probing detector (LAPD) [8] that only consists of a few gates and therefore keeps the area and power overhead low. In this paper, we demonstrate its reliability with respect to process variations and varying environmental conditions and give recommendations how to increase the reliability beyond its intrinsic limits.…”

mentioning

confidence: 99%

“…In the following years, industry and academia have been working on countermeasures against microprobing. Masking schemes were implemented to make probing single lines worthless [6]; circuits dedicated to the detection of microprobes based on their parasitic capacitance have been proposed [7], [8] and also other circuits proposed in academia that can detect microprobes as a side effect [9].…”

mentioning

confidence: 99%

See 3 more Smart Citations

The Low Area Probing Detector as a Countermeasure Against Invasive Attacks

Weiner

Manich

Rodríguez-Montañés

et al. 2018

IEEE Trans. VLSI Syst.

Self Cite

View full text Add to dashboard Cite

Abstract-Microprobing allows intercepting data from onchip wires as well as injecting faults into data or control lines. This makes it a commonly used attack technique against security-related semiconductors, such as smart card controllers. We present the low area probing detector (LAPD) as an efficient approach to detect microprobing. It compares delay differences between symmetric lines such as bus lines to detect timing asymmetries introduced by the capacitive load of a probe. Compared with state-of-the-art microprobing countermeasures from industry, such as shields or bus encryption, the area overhead is minimal and no delays are introduced; in contrast to probing detection schemes from academia, such as the probe attempt detector, no analog circuitry is needed. We show the Monte Carlo simulation results of mismatch variations as well as process, voltage, and temperature corners on a 65-nm technology and present a simple reliability optimization. Eventually, we show that the detection of state-of-the-art commercial microprobes is possible even under extreme conditions and the margin with respect to false positives is sufficient.

show abstract

Section: Limitations Of Previous Workmentioning

confidence: 99%

Section: Low Area Probing Detectormentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations