Development of a Computer-Aided Fault Tree Synthesis Methodology for Quantitative Risk Analysis in the Chemical Process Industry. (December 2004) Yanjun Wang, B.En., Zhejiang University, Hangzhou, China Chair of Advisory Committee: Dr. M. Sam Mannan There has been growing public concern regarding the threat to people and environment from industrial activities, thus more rigorous regulations. Th...

Fault-tree analysis is applied to technological systems to determine the probability of system’s failure modes with unacceptable consequences, called “critical states”. As many Fault-trees as the number of system’s critical states are constructed and analysed; when their probabilities are deemed not acceptable, the Importance and Sensitivity Analysis (ISA) is applied to improve the system safet...

This article introduces a new way of understanding subjective probability and its generalization to lower and upper prevision. Instead of asking whether a person is willing to pay given prices for given risky payoffs, we ask whether the person believes he can make a lot of money at those prices. If not—if the person is convinced that no strategy for exploiting the prices can make him very rich ...

The use of Binary Decision Diagrams (BDDs) in fault tree analysis provides both an accurate and efficient means of analysing a system. There is a problem however, with the conversion process of the fault tree to the BDD. The variable ordering scheme chosen for the construction of the BDD has a crucial effect on its resulting size and previous research has failed to identify any scheme that is c...

Differential Fault Analysis (DFA) finds the key of a block cipher using differential information between correct and faulty ciphertexts obtained by inducing faults during the computation of ciphertexts. Among many ciphers AES has been the main target of DFA due to its popularity. DFA of AES has also been diversified into several directions: reducing the required number of faults, applying it to...

Design-time use of software fault tree analysis allows designers to focus on safety critical system aspects early in the software development process. This paper presents a technique for evaluating the impact of software fault tree 'key nodes' requiring multiple inputs to fail before the hazard propagates through the system. A heuristics-based key node metric providing a design tool with which ...

Fault tree analysis is a well-known method for reliability and safety assessment of engineering systems. In the last 3 decades, a number of methods have been introduced, in the literature, for automatic construction of fault trees. The main difference between these methods is the starting model from which the tree is constructed. This paper presents a new methodology for the construction of sta...

Differential Fault Analysis against AES has been actively studied these years. Based on similar assumptions of the fault injection, different DFA attacks against AES have been proposed. However, it is difficult to understand how different attack results are obtained for the same fault injection. It is also difficult to understand the relationship between similar assumptions of fault injection a...