Security is the science and technology of secure communications and resource protection from security violation such as unauthorized access and modification. Putting proper security in place gives us many advantages. It lets us exchange confidential information and keep it confidential. We can be sure that a piece of information received has not been changed. Nobody can deny sending or receiving a piece of information. We can control which piece of information can be accessed, and by whom. We can know when a piece of information was accessed, and by whom. Networks and databases are guarded...

Recently, the emergence of wireless and mobile networks has made possible the admission of electronic commerce to a new application and research subject: mobile commerce, defined as the exchange or buying and selling of commodities, services, or information on the Internet through the use of mobile handheld devices. In just a few years, mobile commerce has emerged from nowhere to become the hottest new trend in business transactions. However, the prosperity and popularity of mobile commerce will be brought to a higher level only if information is securely and safely exchanged among end...

Electronic payment is the economic backbone of all e-commerce transactions. This book covers the major subjects related to e-payment such as, for example, public key infrastructure, smart cards, payment agents, digital cash, SET protocols, and micro-payment. Its first part covers the infrastructure for secure e-payment over the Internet, whereas in the second part a variety of e-payment methods and systems are described.

This edited volume offers a well-written and sound technical overview of the state of the art in e-payment for e-business developers, graduate students, and...

The second International Symposium on Electronic Commerce was held in Hong Kong, April 2001, in conjunction with the fourth International Workshop on the Technological Challenges of Electronic Commerce. This symposium belongs to the- commerce conference series started in 1998 in Toronto, Canada. Since then, every year, there has been an international workshop on the technological challenges of electronic commerce, and every other year, in conjunction with the workshop, an international symposium on electronic commerce is held. The following workshops have been held so far. The first...

Electronic payment is the economic backbone of all e-commerce transactions. This book covers the major subjects related to e-payment such as, for example, public key infrastructure, smart cards, payment agents, digital cash, SET protocols, and micro-payment. Its first part covers the infrastructure for secure e-payment over the Internet, whereas in the second part a variety of e-payment methods and systems are described.

This edited volume offers a well-written and sound technical overview of the state of the art in e-payment for e-business developers, graduate students, and...

Digital image business applications are expanding rapidly, driven by recent advances in the technology and breakthroughs in the price and performance of hardware and firmware. This ever increasing need for the storage and transmission of images has in turn driven the technology of image compression: image data rate reduction to save storage space and reduce transmission rate requirements. Digital image compression offers a solution to a variety of imaging applications that require a vast amount of data to represent the images, such as document imaging management systems, facsimile...