Cryptology ePrint Archive: Report 2006/479
Available versions in chronological order
20061224:130115 (posted 24-Dec-2006 13:01:15 UTC)
Efficient Provably-Secure Hierarchical Key Assignment Schemes
Alfredo De Santis and Anna Lisa Ferrara and Barbara Masucci
20070103:181533 (posted 03-Jan-2007 18:15:33 UTC)
Efficient Provably-Secure Hierarchical Key Assignment Schemes
Alfredo De Santis and Anna Lisa Ferrara and Barbara Masucci
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