A homomorphism of the de Bruijn graph that maps a graph of order n onto one of order n -1 and its applications to the design of nonsingular feedback shift registers are discussed. The properties preserved under this mapping suggest a new design technique whose main advantage is due to the fact that the problem of designing a desired n-stage shift register may be reduced to a problem of order n ...

With the advancement of many large HEP experiments, amount data that needs to be processed and stored has increased significantly, so we must upgrade computing resources improve performance storage software. This article discusses porting EOS software from x86_64 architecture aarch64 architecture, with aim finding a more cost-effective solution. In process porting, biggest challenge is dependen...

Efficient, reliable trapping of execution in a program at the desired location is a hot area of research for security professionals. The progression of debuggers and malware is akin to a game of cat and mouse each are constantly in a state of trying to thwart one another. At the core of most efficient debuggers today is a combination of virtual machines and traditional binary modification break...

Programming paradigms that abstract underlying multi-core properties of computer architectures have existed for several decennia now; however, for the recently introduction Cell Broadband Architecture, well-known for its application in the Playstation 3, such paradigms had to be adapted to fully utilize all power of the parallel-focused Cell processor; CellFS is one of the first libraries that ...

For the majority of common workloads, performance in a virtualized environment is close to that in a native environment. Virtualization does create some overheads, however. These come from the virtualization of the CPU, the MMU (Memory Management Unit), and the I/O devices. In some of their recent x86 processors AMD and Intel have begun to provide hardware extensions to help bridge this perform...

We present a preliminary approach to defining a formal specification of the semantics of the X86 Instruction Set Architecture. The goal of the formalization is to support the dual requirements of analyzing the correctness of binaries executing on the architecture and investigating different safety and security properties of the architecture itself. In particular, we focus on the security proper...

For the majority of common workloads, performance in a virtualized environment is close to that in a native environment. Virtualization does create some overheads, however. These come from the virtualization of the CPU, the MMU (Memory Management Unit), and the I/O devices. In some of their recent x86 processors AMD and Intel have begun to provide hardware extensions to help bridge this perform...