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Wireless Sensor Networks are nowadays employed in several applications. Cyber-physical systems, health-care instruments and Internet of Things are using hundreds of smart sensors, which include also processing capability together with sophisticated communication protocols. The presence of faults in these critical applications must be checked during runtime, to detect transient and permanent faults...
The effects of permanent faults, arising along working life of digital electronic systems, may impact their reliability and performance. In-field test may help to detect these faults and to prevent serious effects in safety-critical applications. Distributed electronic systems introduce further complexity in this scenario, as the low observability and the lack of maintenance make difficult the detection...
Distributed Electronic Systems used for executing concurrently intensive data acquisition (sensing) and control tasks (actuating) are spread thorough several applications. Health-care, automotive, communications, space and other industries are developing and including these systems because of their competitiveness in terms of cost, performance and reliability. Robustness of distributed electronic...
. Permanent faults (e.g., due to electronic components aging) represent a real problem in nowadays digital systems working in automotive vehicles. Mandatory tests should be done at the vehicle key-on in order to detect damaged elements. Generation and validation of these tests can be improved in a great manner considering the characteristics of the target distributed subsystems. In this work, an approach...
. True-random number generators (TRNGs) are being recently defined, designed and prototyped on digital electronic circuits, like part of encryption and decryption algorithms. They provide very interesting results in terms of security and cost. In harsh environments, like aerospace applications, Single Event Upsets (SEUs) are a main concern. TRNGs are currently used in satellite communications to enhance...
Digital electronic systems in automotive applications are in charge of different tasks, ranging from very critical control functions (e.g., airbag, ABS, ESP) to comfort services (e.g., handling of mirrors, seats, windows, wipers). Hardening these systems involves suitably trading off cost and reliability. Due to standards and regulations in the area, the reliability of subsystems involved even in...
. Serial communications protocols used in automot ive systems must comply with different levels of robustness. Some subsystems in charge of n on-critical tasks are composed of cheaper and non-fault tolerant elements. As Single Event Upsets also affect th ese sub-systems, a comp lete analysis of heir robustness could highlight the critical elements and point out the possible solutions, such as selective...
In this work, a method is proposed for obtaining comparable measurements of the SEU sensitivity in reprogrammable devices that present different characteristics like internal architecture, technology, amount of available resources, etc. A specific minority checker is developed for reporting the presence of SEUs or MBUs which will help in this comparing task during dynamic tests.
Robust communications protocols are widely used in safety critical applications, such as aerospace or automotive systems. On-board complex systems, working in harsh environments, are composed of distributed modules with a high degree of interaction and critical tasks replication. Single Event Upsets (SEUs) are very probable to affect these modules and their communications. Robust protocols are usually...
A new solution is presented for fast measuring of randomness properties of cryptographic algorithms. Statistical Tests from NIST are hardware implemented in order to enable an on-line detection of intentional attacks in cryptographic ciphers. The small area overhead and the short processing times provide a good solution for hardening this type of circuits.
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