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110
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TCS
2008
15 years 10 days ago
2008
A time-bound hierarchical key assignment scheme is a method to assign time-dependent encryption keys to a set of classes in a partially ordered hierarchy, in such a way that each ...
116
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ESORICS
2007
Springer
15 years 6 months ago
2007
Springer
The problem of key management in access hierarchies studies ways to assign keys to users and classes such that each user, after receiving her secret key(s), is able to independentl...