FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2576768314> ?p ?o ?g. }

• W2576768314 startingPage "304" @default.
• W2576768314 abstract "Our new Access Control Encryption is an implementation of CP-ABE, when used as part of a key delivery mechanism for an encrypted Data Base. It focuses on improving performance. In ACE the access policies are any predicates over the set of object attributes. E¢ ciency gains are most pronounced when the DNF representations of policies are compact. In ACE, within the life span of the keys, each user has to perform very few ABE decryptions, regardless of the number of policies accessible to her. Keys to most objects are then computed using only symmetric key decryptions. ACE is not the …rst to utilize symmetric key cryptography to reduce the number of CP-ABE operations, when access policies form a multi-level partially ordered set. However, in addition to this signi…cant saving, ACE also takes advantage of overlaps among policies on clauses of the policies, thus further reducing computational complexity. Let R denote the number of user roles, N be the number of object access policies, k the ratio between the cost of CP-ABE encryption and symmetric key encryption complexities (for 10 attributes k 10), and N = cR: The gain factor of ACE vs. a competing hybrid system is = kc=(k + c): Usually c >> 1; but in some systems it may happen that c < 1: ACE is composed of two sub systems encrypting the same messages: A CP-ABE and a symmetric key encryption system. We prove that ACE is secure under a new Uniform Security Game that we propose and justify, assuming that its building blocks, namely CP-ABE and block ciphers are secure. We require that CP-ABE be secure under the Selective Set Model, and that the block cipher be secure under Multi-User CPA, which we de…ne. We present Policy Encryption (PE) that can replace CP-ABE as a component of ACE. In many cases, PE is more e¢ cient than CP-ABE. However PE does not prevent collusions. Instead it limits collusions. PE is useful in those cases where owners can compartmentalize objects and subjects, so that within each compartment the owners can tolerate collusions. PE prevents inter compartmental collusions. PE has also the following appealing properties: It relies on older hence more reliable intractability assumption, the Computational Di¢ e-Hellman assumption, whereas CP-ABE relies on the newer Bilinear Di¢ e-Hellman assumption. PE uses o¤-the shelf standard crypto building blocks with one small modi…cation, with proven security. For a small number of compartments PE is much faster than CP-ABE. PE and CP-ABE can coexist in the same system, where ABE is used in high security compartments. We apply ACE to a practical …nancial example, the Consolidate Audit Trail (CAT), which is expected to become the largest repository of …nancial data in the world." @default.
• W2576768314 created "2017-01-26" @default.
• W2576768314 creator A5008813314 @default.
• W2576768314 date "2016-01-01" @default.
• W2576768314 modified "2023-09-26" @default.
• W2576768314 title "A Fast Attribute Based Encryption." @default.
• W2576768314 cites W1510795740 @default.
• W2576768314 cites W1513098086 @default.
• W2576768314 cites W1522101599 @default.
• W2576768314 cites W1538349060 @default.
• W2576768314 cites W1591825788 @default.
• W2576768314 cites W1660562555 @default.
• W2576768314 cites W177444027 @default.
• W2576768314 cites W1901278359 @default.
• W2576768314 cites W1966744153 @default.
• W2576768314 cites W1982128483 @default.
• W2576768314 cites W2021328268 @default.
• W2576768314 cites W2035452705 @default.
• W2576768314 cites W2076046175 @default.
• W2576768314 cites W2107324709 @default.
• W2576768314 cites W2108072891 @default.
• W2576768314 cites W2138001464 @default.
• W2576768314 cites W2161195863 @default.
• W2576768314 hasPublicationYear "2016" @default.
• W2576768314 type Work @default.
• W2576768314 sameAs 2576768314 @default.
• W2576768314 citedByCount "0" @default.
• W2576768314 crossrefType "posted-content" @default.
• W2576768314 hasAuthorship W2576768314A5008813314 @default.
• W2576768314 hasConcept C147977885 @default.
• W2576768314 hasConcept C148730421 @default.
• W2576768314 hasConcept C154945302 @default.
• W2576768314 hasConcept C158215988 @default.
• W2576768314 hasConcept C177264268 @default.
• W2576768314 hasConcept C178489894 @default.
• W2576768314 hasConcept C199360897 @default.
• W2576768314 hasConcept C203062551 @default.
• W2576768314 hasConcept C26517878 @default.
• W2576768314 hasConcept C2781238097 @default.
• W2576768314 hasConcept C35181327 @default.
• W2576768314 hasConcept C38652104 @default.
• W2576768314 hasConcept C41008148 @default.
• W2576768314 hasConcept C46905813 @default.
• W2576768314 hasConcept C527821871 @default.
• W2576768314 hasConcept C54569210 @default.
• W2576768314 hasConcept C65302260 @default.
• W2576768314 hasConcept C7646194 @default.
• W2576768314 hasConcept C80444323 @default.
• W2576768314 hasConceptScore W2576768314C147977885 @default.
• W2576768314 hasConceptScore W2576768314C148730421 @default.
• W2576768314 hasConceptScore W2576768314C154945302 @default.
• W2576768314 hasConceptScore W2576768314C158215988 @default.
• W2576768314 hasConceptScore W2576768314C177264268 @default.
• W2576768314 hasConceptScore W2576768314C178489894 @default.
• W2576768314 hasConceptScore W2576768314C199360897 @default.
• W2576768314 hasConceptScore W2576768314C203062551 @default.
• W2576768314 hasConceptScore W2576768314C26517878 @default.
• W2576768314 hasConceptScore W2576768314C2781238097 @default.
• W2576768314 hasConceptScore W2576768314C35181327 @default.
• W2576768314 hasConceptScore W2576768314C38652104 @default.
• W2576768314 hasConceptScore W2576768314C41008148 @default.
• W2576768314 hasConceptScore W2576768314C46905813 @default.
• W2576768314 hasConceptScore W2576768314C527821871 @default.
• W2576768314 hasConceptScore W2576768314C54569210 @default.
• W2576768314 hasConceptScore W2576768314C65302260 @default.
• W2576768314 hasConceptScore W2576768314C7646194 @default.
• W2576768314 hasConceptScore W2576768314C80444323 @default.
• W2576768314 hasLocation W25767683141 @default.
• W2576768314 hasOpenAccess W2576768314 @default.
• W2576768314 hasPrimaryLocation W25767683141 @default.
• W2576768314 hasRelatedWork W1556683487 @default.
• W2576768314 hasRelatedWork W164740805 @default.
• W2576768314 hasRelatedWork W2032065483 @default.
• W2576768314 hasRelatedWork W2161195863 @default.
• W2576768314 hasRelatedWork W2235014515 @default.
• W2576768314 hasRelatedWork W2402219606 @default.
• W2576768314 hasRelatedWork W2407172942 @default.
• W2576768314 hasRelatedWork W2511918238 @default.
• W2576768314 hasRelatedWork W2534829094 @default.
• W2576768314 hasRelatedWork W2535223219 @default.
• W2576768314 hasRelatedWork W2599469874 @default.
• W2576768314 hasRelatedWork W2949293557 @default.
• W2576768314 hasRelatedWork W2950771063 @default.
• W2576768314 hasRelatedWork W3004351928 @default.
• W2576768314 hasRelatedWork W3021689368 @default.
• W2576768314 hasRelatedWork W3029445927 @default.
• W2576768314 hasRelatedWork W3096305835 @default.
• W2576768314 hasRelatedWork W3122061693 @default.
• W2576768314 hasRelatedWork W36745501 @default.
• W2576768314 hasRelatedWork W78107630 @default.
• W2576768314 hasVolume "2016" @default.
• W2576768314 isParatext "false" @default.
• W2576768314 isRetracted "false" @default.
• W2576768314 magId "2576768314" @default.
• W2576768314 workType "article" @default.