Communications of the ACM
Securing the Cloud
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University of Texas at Austin (UT) researchers are working on the NEBULA project, a U.S. National Science Foundation-funded study to develop a more cloud-compatible Internet architecture by enhancing data transfer security. "An intermediate provider should be able to know where the packet's been and should be able to exercise its policies about the downstream provider that's going to handle the flow next," says UT professor Michael Walfish.
Walfish has worked with colleagues at Stanford University, the Stevens Institute of Technology, and the University of California, Berkeley to develop ICING, a system that allows information to choose its own path, picking different providers, and arriving at its destination with a record of where it came from and each stop it made. "What we do is take a packet, a unit of data, and we add some fields to the head of the packet," Walfish says.
ICING enables victims of denial-of-service attacks to cut off the connection from the attackers faster and with more accuracy.
From University of Texas at Austin
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