The design and construction of secure systems cannot be entirely captured in textbooks or class notes, but must be taught as an art which is learned through apprenticeship and practice. This paper describes a course in Secure Systems that uses the Flaw Hypothesis Methodology for penetration testing as a vehicle for motivating and teaching students fundamental principles of security

This article starts with a fact: Internet penetration levels in Spain are extremely low compared with other European countries. In the nineties this situation was justified by the relative delay in the adoption of public and private initiatives, oriented towards the development of the Information Society (IS). However, data in 2003 show that the gap still holds or even tends to increase with th...

Abstract The system of seabed Cone Penetration Test (CPT) is a kind equipment for offshore investigations. Seabed CPT used to assess multiple physical properties marine sediments. Constant-rate penetration mechanism the core part CPT, which adopts dual-cylinder drive penetrate probe rod into seafloor sediments at constant speed (2cm/s). At present, domestic and its almost all rely on imports. I...

shear wave velocity is a basic engineering tool required to define dynamic properties of soils. in many instances it may be preferable to determine vs indirectly by common in-situ tests, such as the standard penetration test. many empirical correlations based on the standard penetration test are broadly classified as regression techniques. however, no rigorous procedure has been published for c...