Method of Key Management

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Zych, Anna K. and Doumen, Jeroen M. and Jonker, Willem and Hartel, Pieter H. and Petkovic, Milan (2008) Method of Key Management. Patent.

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Abstract: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.
Item Type:Patent
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62832
Official URL:http://v3.espacenet.com/textdoc?IDX=WO2008026184
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