A cryptographic solution to implement access control in a hierarchy and more

@inproceedings{Ray2002ACS,
  title={A cryptographic solution to implement access control in a hierarchy and more},
  author={Indrakshi Ray and Indrajit Ray and Natarajan Narasimhamurthi},
  booktitle={SACMAT},
  year={2002}
}
The need for access control in a hierarchy arises in severaldifferent contexts. One such context is managing the information ofan organization where the users are divided into different securityclasses depending on who has access to what. Several cryptographicsolutions have been proposed to address this problem --- thesolutions are based on generating cryptographic keys for eachsecurity class such that the key for a lower level security classdepends on the key for the security class that is… CONTINUE READING
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