Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Fault Injections"”.
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Fault injections on mission-critical computer systems
This thesis presents two unique sets of fault injections on mission-critical computer systems with the goal of (1) understanding the impact of faults, errors and failures, and (2) evaluating fault-tolerance and resilience of the targeted systems in the presence of failures. Our first fault …
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A supervised machine learning-based framework to detect low-level fault injections in software systems
Fault injection attacks inject faults into system components, inducing abnormal software behavior. Software vulnerability analysis cannot prevent new attack vectors without software modifications. Attack detection methods utilize system-specific software features and unsupervised learning due to …
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FReAK: fault injection based resilience assessment of Kubernetes
… container orchestrator, using nearly 12000 fault injections in the control plane of Kubernetes performed using FReAK, an automated fault injector, is presented in this thesis. Subsequently, the vulnerable functionalities of the components are uncovered. Additionally, a Bayesian model for …
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Hierarchical Simulation to Assess Hardware and Software Dependability
… that the simulation method predicts that same fault impact 87.5% of the time, as is obtained by similar fault injections into a real Myrinet system. Reasons for the remaining discrepancy are examined in the thesis. A second key result shows the reduction in the number of simulations needed due …
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Experimental study of software dependability
… of software systems include software faults and hardware faults. To improve software dependability, it is necessary to understand the characteristics of these faults and how they affect software systems. In this study, a distributed fault injection and monitoring environment (DEFINE) …
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Towards Secure Machine Learning Acceleration: Threats and Defenses Across Algorithms, Architecture, and Circuits
… illustrates the vulnerability of sparse DNNs to fault injections on their model parameters. It presents SparseBFA, an algorithm to identify the most vulnerable bits among the model parameters of a sparse DNN. SparseBFA shows that a victim DNN is highly susceptible to a few bit flips in the …
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Fault Attacks on Embedded Software: New Directions in Modeling, Design, and Mitigation
… attacks against embedded software, which uses fault injection as a hacking tool. Fault attacks use well-chosen, targeted fault injection combined with clever system response analysis to break the security of a system. In case of a fault attack on embedded software, faults are injected into the …
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Resiliency of high-performance computing systems: A fault-injection-based characterization of the high-speed network in the blue waters testbed
… checkpointing may no longer be a viable fault tolerance mechanism. This poses serious ramifications for a system's ability to guarantee reliability and availability of its resources. It is becoming increasingly important to understand fault-to-failure propagation and to identify key areas …
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Analysis and Design of Symmetric Cryptographic Algorithms
… the first part of the dissertation, we deal with fault-based attacks on cryptographic circuits which belong to the field of active implementation attacks and aim to retrieve secret keys stored on such chips. Our main focus lies on the cryptanalytic aspects of those attacks. In particular, we …
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Probabilistic design for emerging memory and nanometer-scale logic
… technologies; (2) Probabilistic modeling of faults due to on-chip voltage variation. This dissertation first investigates the unique physics-level stochasticity of spin-transfer torque magnetic RAM (STT-RAM). The write process of STT-RAM is stochastic: specifically, the write time of a …
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Fault Attacks on Cryptosystems: Novel Threat Models, Countermeasures and Evaluation Metrics
… side-channel leakage and active attacks based on fault injection. Fault behavior can be processed as side-channel information, offering all the benefits of Differential Power Analysis including noise averaging and hypothesis testing by correlation. In fault attacks, the adversary induces faults …