In this chapter, we discuss a widely used fault-tolerant data replication model called virtual synchrony. The model responds to two kinds of needs. First, there is the practical qu...
The problem of spam is a classic “tragedy of the commons” [10]. We propose the Zmail protocol as a way to preserve email as a “free” common resource for most users, while ...
Benjamin Kuipers, Alex X. Liu, Aashin Gautam, Moha...
The increasing use of email for phishing and unsolicited marketing has reduced the trustworthiness of email as a communication medium. Sender authentication is a known defense aga...