Daniel E. Geer

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We show that the Kerberos Authentication System can relax its requirement for synchronized clocks, with only a minor change which is consistent with the current protocol. Synchronization has been an important limitation of Kerbeross it imposes political costs and technical ones. Further, Kerberos' reliance on synchronization obstructs the secure(More)
We show that the Kerberos Authentication System can relax its requirement for synchronized clocks, with only a minor change which is consistent with the current protocol. Synchronization has been an important limitation of Kerberos; it imposes political costs and technical ones. Further, Kerberos' reliance on synchronization obstructs the secure(More)
Regular readers of this column might recall the installment that appeared in the November/ December 2010 issue, "An Index of Cybersecurity," which suggested that such an index (the ICS) would soon appear. Prophesy is now fulfilled: the ICS has begun publication at cybersecurityindex.org. It's what is called a sentiment-based index- if you're familiar with(More)