Foreword for “Citizen Security Dialogues: Dispatches from Mexico”

Citizen (in)security?: Social media, citizen journalism and crisis response

The use of social media in a crisis has been applauded, and is witnessing an increase in uptake among those involved in crisis management activities, including citizens. Whilst some challenges have been discussed elsewhere, somewhat lacking is a discussion on the impact of sharing information on the security of those that may have been recorded. Accordingly, this working paper aims to provide p...

A Contemporary Foreword on GSM Security

This article contains a current outline of the GSM system security, with focus on the air interface protocol. It presents the terminology and describes the GSM security operation, including its principles and features. This document also discusses the effectiveness of GSM authentication and the strength of GSM encryption. It includes therefore the most significant physical and cryptanalytic att...

Foreword from the Editors

This issue of the Journal of Symbolic Computation collects selected papers on work presented at, or related to, the meeting MEGA 2005, held in Porto Conte, Alghero, Sardinia (Italy), May 27 June 1, 2005. MEGA is the acronym for “Effective Methods in Algebraic Geometry” (and its equivalent in Italian, French, Spanish, German, Russian, etc.), a series of (roughly) biennial conferences on computin...

Foreword Foreword

Dispatches from abroad: laughter amid the land mines.