Preface. Part I: International Workshop on Certification and Security in E-Services (CSES 2002). Workshop Organization. Introduction; M. Talamo. Invited Speakers. A Network Management Viewpoint on Security in e-Services; R. Boutaba, B. Ishibashi, B. Shihada. Security and Certification Issues in Grid Computing; I. Foster, F. Siebenlist, S. Tuecke, V. Welch. Performance Considerations in Web Security; A. Iyengar, R. Mraz, M.E. Zurko. Protecting Applications Against Malice Using AdaptiveMiddleware; R.E. Schantz, F. Webber, P. Pal, J. Loyall, D.C. Schmidt. Contributed Full Papers. A Context-Aware Approach to Infer Trust in Public Key Infrastructures; F. Di Vito, P. Inverardi, G. Melideo. Mountain Information System: A Distributed E-Government Office; G. Marinelli, P. Russo. E-Government Services: Certification and Security Overlay; F. Arcieri, R. Giaccio. A Multi-Expert Based Approach to Continuous Authentication of Mobile-Device Users; O. Mazhelis, A. Seleznyov, S. Puuronen. Encrypted Database Integrity in Database Service Provider Model; H. Hacigumus, B. Iyer, S. Mehrotra. Contributed Short Papers. Deploying Multi-tier Applications Across Multiple Security Domains; I. Balabine, A. Koschel. Security Through Integration: Towards a Comprehensive Framework for Development and Certification; B. Marquet, A. Rossi, F.J.N. Cosquer. Multiple Applications with a Single Smart Card; D.T. Shaw, S. P. Maj. Part II: Workshop on E-Government and Security. Workshop Organization. Invited Speakers. Respecting Privacy in E-Government; J. Stoddart. The Status of Privacy Enhancing Technologies; J. Borking. Initiatives in the Fight Against Cyber Terrorism; K. Tolan. Identification and Confidentiality for e-Government; R. Posch,H. Leitold. Mastering E-Commerce and Globalization; E. Dubreuil.