| Autor: | Karin Petersen, Mike Spreitzer, Douglas B. Terry, Marvin M. Theimer, Alan J. Demers |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
SIMPLE (military communications protocol)
Computer Networks and Communications Corruption Computer science media_common.quotation_subject Distributed computing Mobile computing Data security Computer security computer.software_genre Replication (computing) High availability Server Data system Electrical and Electronic Engineering computer Information Systems media_common |
| Zdroj: | Wireless Networks. 5:357-371 |
| ISSN: | 1022-0038 |
| DOI: | 10.1023/a:1019175717085 |
| Popis: | Providing high availability and the ability to share data despite the weak connectivity of mobile computing raises the problem of trusting replicated data servers that may be corrupt. This is because servers must be run on portable computers, and these machines are less secure and thus less trustworthy than those traditionally used to run servers. We describe the kinds of problems one must be prepared to deal with, noting that even users of secured, non‐portable computers are at risk if servers trust all authorized peers. We show that high availability through data replication on portable computers need not be mutually exclusive with various levels of data security one might want. We give three solutions to this trust problem for a simple example architecture, achieving progressively higher levels of security with progressively higher costs. We then show how to solve this trust problem for the more complex architecture of Bayou, a weakly consistent replicated data system we built at Xerox PARC. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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