Correctness-by-Construction (CbC) is an incremental program construction process to construct functionally correct programs. The programs are constructed stepwise along with a specification that inherently guaranteed be satisfied. CbC complex use without specialized tool support, since it needs set of predefined refinement rules fixed granularity which additional on top the programming language...

Security protocols use cryptography to set up private communication channels on an insecure network. Many protocols contain flaws, and because security goals are seldom specified in detail, we cannot be certain what constitutes a flaw. Thanks to recent work by a number of researchers, security protocols can now be analyzed formally. The paper outlines the problem area, emphasizing the notion of...

We introduce Signatures of Correct Computation (SCC), a new model for verifying dynamic computations in cloud settings. In the SCC model, a trusted source outsources a function f to an untrusted server, along with a public key for that function (to be used during verification). The server can then produce a succinct signature σ vouching for the correctness of the computation of f , i.e., that s...

Large sample methods for estimating the variance of parameter estimates for hypothesistesting purposes (White, 1982) and statistical tests for model selection (Vuong, 1989) when the statistical model is wrong (i.e., misspeci ed) are reviewed. A parallel distributed processing (PDP) statistical model for analyzing categorical time series data is then proposed, and a theorem establishing when the...

With the introduction of multi-core CPUs, multi-threaded programming is becoming significantly more popular. Unfortunately, it is difficult for programmers to ensure their code is correct because current languages are too low-level. Atomic sections are a recent language primitive that expose a higher level interface to programmers. Thus they make concurrent programming more straightforward. Ato...