Randomness testing is a key tool to analyse the quality of true (physical) random and pseudo-random number generators. There wide variety tests that are designed for this purpose, i.e., goodness sequences used. These grouped in different sets called suites or batteries. The batteries must be such way form them independent, they have coverage, computationally efficient. One battery well-known EN...

OBJECTIVE To identify, from the perspective of the health staff, the strengths and weaknesses of the program for the detection and control of cervical cancer through a qualitative assessment implemented in three health centers in the city of San Luis Potosi, Mexico, from August 2008 to November 2009. METHODS A qualitative evaluation was performed. Nine providers participated in the study. The...

We point to three types of potential vulnerabilities in the Bluetooth standard, version 1.0B. The first vulnerability opens up the system to an attack in which an adversary under certain circumstances is able to determine the key exchanged by two victim devices, making eavesdropping and impersonation possible. This can be done either by exhaustively searching all possible PINs (but without inte...