Breakthrough in MPC cryptography could make cloud computing more secure
September 11, 2013
Grazed from Business Cloud News. Author: Jonathan Brandon.
A recent breakthrough in multi-party computation (MPC) cryptography may result in a “sea change” in computing security according to Peter Scholl, a researcher in the Cryptography and Information Security group at the University of Bristol. The essential idea behind MPC, a subset of cryptography, is that it should enable two or more people to compute any function choosing secret inputs, without actually revealing the contents of those inputs to either party.
Scholl is among a team of researchers from the Department of Computer Science at University of Bristol and Aarhus University in Denmark who are jointly developing a practical implementation protocol for MPC called SPDZ (pronounced “speeds”)…
The protocol employs a message authentication code (MAC – not to be confused with Media Access Control) on secret data which is shared between each party on both ends of a computer transaction. The MAC is verified when both parties reveal a piece of information that can only be known by the other party (like a piece of that MAC)…
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