This book constitutes the refereed proceedings of the first International Conference on Principles of Security and Trust, POST 2012, held in Tallinn, Estonia, in March/April 2012, as part of ETAPS 2012, the European Joint Conferences on Theory and Practice of Software. The 20 papers, presented together with the abstract of an invited talk and a joint-ETAPS paper, were selected from a total of 67 submissions. Topics covered by the papers include: foundations of security, authentication, confidentiality, privacy and anonymity, authorization and trust, network security, protocols for security, language-based security, and quantitative security properties.

This book constitutes the thoroughly refereed post-proceedings of the 7th International Workshop on Formal Aspects of Security and Trust, FAST 2010, held as part of the 8th IEEE International Conference on Software Engineering and Formal Methods, SEFM 2010 in Pisa, Italy in September 2010. The 14 revised full papers presented together with one invited paper were carefully reviewed and selected from 42 submissions. The papers focus of formal aspects in security and trust policy models, security protocol design and analysis, formal models of trust and reputation, logics for security and trust, distributed trust management systems, trust-based reasoning, digital assets protection, data protection, privacy and id issues, information flow analysis, language-based security, security and trust aspects in ubiquitous computing, validation/analysis tools, web service security/trust/privacy, grid security, security risk assessment, and case studies.

The present volume contains the proceedings of the 6th International workshop on Formal Aspects of Security and Trust (fast 2009), held in Eindhoven, The Netherlands, 5-6 November 2009, as part of Formal Methods Week 2009. fast is sponsored by IFIP WG 1.7 on Foundations of Security Analysis and Design. The previous ?ve fast workshop editions have fostered cooperation among researchers in the areas of security and trust, and we aimed to continue this tradition. As computing and networkinfrastructures become increasingly per- sive, and as they carry increasing economic activity, society needs well-matched security and trust mechanisms. These interactions increasingly span several - terprises and involve loosely structured communities of individuals. Participants in these activities must control interactions with their partners based on trust policies and business logic. Trust-based decisions e?ectively determine the se- ritygoalsforsharedinformationandfor accessto sensitiveorvaluableresources. fast sought original papers focusing of formal aspects of: security and trust policy models; security protocol design and analysis; formal models of trust and reputation; logics for security and trust; distributed trust management s- tems; trust-based reasoning; digital assets protection; data protection; privacy and id issues; information ? ow analysis; language-based security; security and trust aspects in ubiquitous computing; validation/analysis tools; Web service security/trust/privacy; grid security; security risk assessment; and case studies. The fast proceedings contain-in addition to an abstract of the invited talk by Anindya Banerjee-revisionsoffull papersacceptedforpresentationat fast.

The Joint Workshop on "Automated Reasoning for Security Protocol Analysis and Issues in the Theory of Security" (ARSPA-WITS 2009) was held in York, UK, March 28-29, 2009, in association with ETAPS 2009. ARSPA is a series of workshops on "Automated Reasoning for Security P- tocol Analysis," bringing together researchers and practitioners from both the security andthe formalmethods communities,from academiaand industry,who are working on developing and applying automated reasoning techniques and tools for the formal speci?cation and analysis of security protocols. The ?rst two ARSPA workshops were held as satellite events of the Second International JointConferenceon Automated Reasoning(IJCAR 2004)andof the 32nd Int- nationalColloquiumonAutomata,LanguagesandProgramming(ICALP2005), respectively. ARSPA then joined forces with the workshop FCS (Foundations of Computer Security): FCS-ARSPA 2006 was a?liated with LICS 2006, in the context of FLoC 2006,and FCS-ARSPA 2007 was a?liated with LICS 2007 and ICALP 2007. WITSistheo?cialannualworkshoporganizedbytheIFIP WG1.7on"T- oretical Foundations of Security Analysis and Design," established to promote the investigation on the theoretical foundations of security, discovering and p- moting new areas of application of theoretical techniques in computer security and supporting the systematic use of formal techniques in the development of security-related applications. This is the ninth meeting in the series. In 2008, ARSPA and WITS joined with the workshop on Foundations of Computer - curityFCSforajointworkshop,FCS-ARSPA-WITS2008,associatedwithLICS 2008 and CSF 21.

This volume contains the proceedings of the 7th Conference on Computational Methods in Systems Biology (CMSB 2009), held in Bologna, from August 31 to September 1, 2009. The ?rst CMSB was held in Trento in 2003, bringing together life scientists, computer scientists, engineers and physicists. The goal was to promote the c- vergence of di?erent disciplines aiming at a new understanding and description of biological systems, ?rmly ground in formal models, supported by compu- tionallanguagesandtools, ando?eringnew methodsofanalysis.The conference then moved to Paris in 2004, Edinburgh in 2005, Trento in 2006, Edinburgh in 2007 and Rostock/Warnemunde ] in 2008. This year the conference attracted about 45 submissions form 18 countries, mainly from Europe and North America, but also from Asia and Australia. We wish to thank all authors for their interest in CMSB 2009. After careful disc- sions, the Programme Committee eventually selected 18 papers for presentation at the conference. Each of them was accurately refereed by at least three - viewers, who delivered detailed and insightful comments and suggestions. The Conference Chairmen warmly thank all the members of the Programme C- mittee and all their sub-referees for the excellent support they gave, as well as for the friendly and constructive discussions. We also would like to thank the authorsfor havingrevisedtheir papers to addressthe comments andsuggestions by the referees."

The present volume contains the proceedings of the 5th International Workshop on Formal Aspects in Security and Trust (FAST 2008), held in Malaga, Spain, October 9-10, 2008. FAST is an event a?liated with the 13th European Sym- sium on Research in Computer Security (ESORICS 2008). FAST 2008 was held under the auspices of the IFIP WG 1.7 on Foundations of Security Analysis and Design. The 5th International Workshop on Formal Aspects in Security and Trust (FAST 2008) aimed at continuing the successful e?ort of the previous three FAST workshop editions for fostering the cooperation among researchers in the areas of security and trust. As computing and network infrastructures become increasingly pervasive, and as they carry increasing economic activity, society needs well-matched security and trust mechanisms. These interactions incre- ingly span several enterprises and involve loosely structured communities of - dividuals. Participants in these activities must control interactions with their partners based on trust policies and business logic. Trust-based decisions - fectively determine the security goals for shared information and for access to sensitive or valuable resources. FAST sought for original papers focusing on formal aspects in: security and trust policy models; security protocol design and analysis; formal models of trustand reputation;logicsfor security andtrust;distributed trust management systems;trust-basedreasoning;digitalassetsprotection;dataprotection;privacy and ID issues; information ?ow analysis; language-based security; security and trust aspects in ubiquitous computing; validation/analysis tools; Web service security/trust/privacy; GRID security; security risk assessment; case studies.

This volume contains the 43 papers written by close collaboratorsand friends of UgoMontanariincelebrationofhis65thbirthday.Insomesense, thevolumeisa re?ection, with gratitude and admiration, on Ugo's highly creative, remarkably fruitful and intellectually generous life, which is thriving as strongly as ever. It provides a snapshot of the manifold research ideas that have been deeply in?uenced by Ugo's work. In a sense the book gives a vantage point from which to foresee further developments to come: by Ugo himself, and by many other people encouraged and stimulated by his friendship and example. The volume consists of seven sections, six of which are dedicated to the main research areas to which Ugo has contributed. Each of these six sections starts with a contribution by one of Ugo's closer collaborators providing an account of Ugo's contribution to the area and brie?y describing the papers in the section. The six scienti?c sections and the respective editors are the following: - Graph Transformation (Andrea Corradini) - Constraint and Logic Programming (Francesca Rossi) - Software Engineering (Stefania Gnesi) - Concurrency (Roberto Gorrieri) - Models of Computation (Roberto Bruni and Vladimiro Sassone) - Software Veri?cation (Gian-Luigi Ferrari) The ?nal section, edited by Fabio Gadducci, contains somelaudatio or memories of working experiences with Ugo, as well as three more technical contributions.

This volume presents the set of papers accompanying the lectures of the eighth International School on Formal Methods for the Design of Computer, Com- nication, and Software Systems (SFM). Thisseriesofschoolsaddressestheuseofformalmethodsincomputerscience asaprominentapproachtotherigorousdesignofcomputer, communication, and software systems. The main aim of the SFM series is to o?er a good spectrum of current research in foundations as well as applications of formal methods, which can be of help for graduate students and young researchers who intend to approach the ?eld. SFM 2008 was devoted to formal techniques for computational systems - ology and covered several aspects of the ?eld, including computational models, calculi and logics for biological systems, and veri?cation and simulation me- ods. Theschoolfeatured not onlyregularlectures, but also talksgivenby people involvedinthe ItalianresearchprojectonBio-InspiredSystems andCalculiwith Applications (BISCA). The ?rst partof this volume comprises nine papers basedon regularlectures. The paper by Degasperi and Gilmore describes the application of sensitivity analysistechniques to stochastic simulation algorithms. Talcott's paper presents pathway logic, an approach to modeling and analysis of biological processes based on rewriting logic. Fages and Soliman study reaction graphs and acti- tion/inhibition graphs used by biologists through formal methods originating from programming theory. The paper by Maus, John, R] ohl, and Uhrmacher d- cusses categories, abstraction hierarchies, and composition hierarchies playing a role in modeling and simulation for computational biology. Gillespie's paper - views the theory of stochastic chemical kinetics and several simulation methods that are based on that theory."

  This book constitutes the refereed proceedings of the 12th European Symposium on Programming, ESOP 2003, held in Warsaw, Poland, in April 2003. The 25 revised full papers presented together with two invited papers were carefully reviewed and selected from 99 submissions. Among the topics addressed are programming paradigms and their integration, program semantics, calculi of computation, security, advanced type systems, program analysis, program transformation, and practical algorithms based on theoretical developments.

This book constitutes the refereed proceedings of the 24th International Colloquium on Automata, Languages and Programming, ICALP '97, held in Bologna, Italy, in July 1997. ICALP '97 celebrated the 25th anniversary of the European Association for Theoretical Computer Science (EATCS), which has sponsored the ICALP meetings since 1972.
The volume presents 73 revised full papers selected from a total of 197 submissions. Also included are six invited contributions. ICALP is one of the few flagship conferences in the area. The book addresses all current topics in theoretical computer science.