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Many techniques of software vulnerability exploitation rely on deep and comprehensive analysis of vulnerable program binaries. If a copy of the vulnerable software is available to attackers, they can compose their attack scripts and payloads by studying the sample copy and launch attacks on other copies of the same software in deployment. By transforming software into different forms before deployment,...
Test case prioritization is an essential part of test execution systems for large organizations developing software systems in the context that their software versions are released very frequently. They must be tested on a variety of compatible hardware with different configurations to ensure correct functioning of a software version on a compatible hardware. In practice, test case execution must...
Program obfuscation is an important software protection technique that prevents attackers from revealing the programming logic and design of the software. We introduce translingual obfuscation, a new software obfuscation scheme which makes programs obscure by "misusing" the unique features of certain programming languages. Translingual obfuscation translates part of a program from its original...
Recently, there is growing interest in directly digitizing the scintillation pulses in PET detectors. With digital pulse samples, in principle one can apply nontrivial signal analysis software algorithms to either yield better detection performance or more flexibility in detector design. Previously, we have proposed the MVT method for direct scintillation pulse sampling and developed several kinds...
Importance sampling (IS) is a change-of-measure technique for speeding up the simulation of rare events in stochastic systems. In this paper, we presented an approach uses Importance Sampling technique for efficient estimation of software reliability via Markov software usage models in statistical testing. By suitable changes of the probabilities of state transitions during test, an iterative method...
In this paper the fluent software was used to solve the stability of ducted fan UAV problems. The researchers calculated, programming, before and after repeated treatment and so on inputs, inefficient labor was reduced. More energy and time was considered into the nature of the problem, optimization algorithm selection and parameter setting, so the work efficiency was improved. The pneumatic parameter...
The paper presents and designs a new-style gas monitor terminal in coal mine based on ARM chip called S3C2410A, which means the hardware and driver's designation of system uses S3C2410A as its central processing unit and also expounds the detail of software and hardware design. The system communicates with metrical instrument by the RS485 BUS. It can monitor the mine gas in network. It has good man-machine...
Traditional test sequence optimization methods for path testing have three problems: 1) fake test results may occur; 2) unnecessary repetitive tests may exist; 2) actual test coverage rate could be low. These problems are because the effects of the faults on the test sequence execution are not considered by traditional methods. To solve these problems, we defined a stochastic combinatorial optimization...
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