B. Schneier, J. Kelsey, and J. Walker
ESORICS 96 Proceedings, Springer-Verlag, September 1996, pp. 172-182.
ABSTRACT: We develop a protocol for "distributed proctoring" that allows a network of graders to grade individual problems solved by a network of test takers. The mutual anonymity of the test takers and graders is ensured using anonymous MIXs, but an audit trail is provided in the event of a grading dispute. We discuss other applications for this protocol, more generally defined as "digital piecework."
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