Method of Key Management

Anna K. Zych (Inventor), Jeroen M. Doumen (Inventor), Willem Jonker (Inventor), Pieter H. Hartel (Inventor), Milan Petkovic (Inventor)

Research output: Patent

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The invention relates to a method of key management for group-based controlled access to encrypted data, in which a decryption key for the encrypted data can be obtained by a party if the party is a member of at least one group which is authorized to access the data, the groups being organized in a hierarchical tree in which each non-leaf node represents a group and each leaf node represents a member of all groups represented by nodes hierarchically superior to the leaf node in question.
Original languageEnglish
Patent numberPH006387, WO-IB2007/053498, EP-06119878.4
IPCH04L 9/08
Priority date31/08/06
Filing date30/08/07
Publication statusSubmitted - 31 Aug 2006


  • SCS-Cybersecurity


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