The current model of mail delivery over the Internet guarantees that an email message, when delivered, will have all its parts present at the recipient's mail server. The message is typically spooled pending retrieval by the recipient at a later time. This model has serious eeciency problems when handling messages that contain large les. Such messages impose a heavy burden on storage resources ...

1Division of Gastroenterology-Hepatology, Department Internal Medicine, School Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, the Netherlands. Correspondence: Daniel Keszthelyi, MD, PhD. E-mail: [email protected].

Computer users, especially mobile ones, have developed a significant dependency on electronic communication. Enhancing the capabilities of such communication by adding an awareness of context such as location and time increases the quality and intuitiveness of the services available to the mobile user. This paper describes the design and implementation of a context-aware messaging system called...

Software for encrypting email messages has been widely available for more than 15 years, but the emailusing public has failed to adopt secure messaging. This failure can be explained through a combination of technical, community, and usability factors. This paper proposes a new approach to email security that employs opportunistic encryption and a security proxy to facilitate the opportunistic ...

this solution has a flaw which in certain circumstances allows the malicious construction of apparently authentic messages. Finally note that it is not the intention of the author to criticise what is after all only an RFC,l but rather to ensure that possible solutions to multi-destination secure message authentication problems are analysed with care. There are many lessons to be learnt from th...

Strathclyde Institute of Pharmacy and Biomedical Sciences, University Strathclyde, Glasgow, UK Correspondence to Dino Rotondo, Glasgow G4 0RE, UK. Tel: +44 141 548 3629; fax: 552 2562; e-mail: [email protected]