Titlebook: SEMPER - Secure Electronic Marketplace for Europe; Gérard Lacoste,Birgit Pfitzmann,Michael Waidner Book 2000 Springer-Verlag Berlin Heidel

AVANT

Fair Exchange: A New Paradigm for Electronic Commercecols..The basic problem which we solved is how to provide an open and extensible solution for exchanging two arbitrary business items fairly: Up to now, specialized fair exchange protocols were developed for any combination of two goods (examples include certified mail, contract signing, and fair-pu

性学院

骚扰

Chapter 12: Trust Management in the Certificate Blockfrastructures (PKI), mainly focusing on certificates and certificate authorities (CAs). The existence of several CAs offering services of different quality and certificates with different semantics is one of the main reason why trust management is needed. More precisely, trust management provides th

尊重

Chapter 13: Limiting Liability in Electronic Commercey. This implies conflicting interests: The key holder does not want to be held liable for signatures he has not made. The relying party wants to rely on a digital signature and be able to enforce it in a law court. This chapter tries to find an acceptable compromise. It introduces the necessity for

取之不竭

Chapter 14: Legal Aspectst all of them are insufficient with respect to the protection of the key holder against compromised signatures through realistic attacks. The liability is at the key holder in most approaches. On the other hand, it is obvious that the relying party must be protected against signed transactions claim

Asperity

疼死我了

Chapter 13: Limiting Liability in Electronic Commercelimiting liability for digitally signed transactions, presents the Commitment Service and shows how it can be used as Liability-Cover Service to limit the key holder’s overall liability for digitally signed messages. The main principle is a separation between deniable signatures and undeniable commitments.

发生

Legal Frameworknt and Liability-Cover Service. The proposals also cover most other legal aspects of electronic commerce, again with a focus on predictability even in cross border scenarios, fairness to all parties, and ease of adoption. A model for implementing these proposals is given as the . Electronic-Commerce Agreement, ..

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Architecture overall design. Next, we describe the layers of the service architecture in more detail by breaking each layer down into several service blocks. We then present important aspects of the implementation architecture, i.e., our general rules for realizing these blocks in software. Finally, we describe the actual Java prototype.

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