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We consider a scenario where a sequence of messages must be protected and the security requirement is that, the most recent message has high level of security while past messages could be secured at a lower level. We assume the adversary is an eavesdropping adversary and has unlimited computational power. The motivation for this problem is situations where sensitivity of messages reduce over time,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.