Abstract
| Original language | English |
|---|---|
| Place of Publication | Enschede |
| Publisher | Centre for Telematics and Information Technology (CTIT) |
| Number of pages | 23 |
| Publication status | Published - Nov 2005 |
Publication series
| Name | CTIT Technical Report Series |
|---|---|
| Publisher | University of Twente, Centre for Telematica and Information Technology (CTIT) |
| No. | CTIT-TR-05-57 |
| ISSN (Print) | 1381-3625 |
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Keywords
- SCS-Cybersecurity
- Access control
- Hierarchical key management
Cite this
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A Diffie-Hellman based Key Management Scheme for Hierarchical Access Control. / Zych, Anna; Doumen, Jeroen; Hartel, Pieter; Jonker, Willem.
Enschede : Centre for Telematics and Information Technology (CTIT), 2005. 23 p. (CTIT Technical Report Series; No. CTIT-TR-05-57).Research output: Book/Report › Report › Professional
TY - BOOK
T1 - A Diffie-Hellman based Key Management Scheme for Hierarchical Access Control
AU - Zych, Anna
AU - Doumen, Jeroen
AU - Hartel, Pieter
AU - Jonker, Willem
PY - 2005/11
Y1 - 2005/11
N2 - All organizations share data in a carefully managed fashion by using access control mechanisms. We focus on enforcing access control by encrypting the data and managing the encryption keys. We make the realistic assumption that the structure of any organisation is a hierarchy of security classes. Data from a certain security class can only be accessed by another security class, if it is higher or equal in the hierarchy. Otherwise access is denied. Our solution is based on the Diffie-Hellman key exchange protocol. The worst case performance of our solution is slightly better than that of all other existing solutions. We show that our performance in practical cases is linear in the size of the hierarchy, whereas the best results from the literature are quadratic.
AB - All organizations share data in a carefully managed fashion by using access control mechanisms. We focus on enforcing access control by encrypting the data and managing the encryption keys. We make the realistic assumption that the structure of any organisation is a hierarchy of security classes. Data from a certain security class can only be accessed by another security class, if it is higher or equal in the hierarchy. Otherwise access is denied. Our solution is based on the Diffie-Hellman key exchange protocol. The worst case performance of our solution is slightly better than that of all other existing solutions. We show that our performance in practical cases is linear in the size of the hierarchy, whereas the best results from the literature are quadratic.
KW - SCS-Cybersecurity
KW - Access control
KW - Hierarchical key management
M3 - Report
T3 - CTIT Technical Report Series
BT - A Diffie-Hellman based Key Management Scheme for Hierarchical Access Control
PB - Centre for Telematics and Information Technology (CTIT)
CY - Enschede
ER -