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» Ciphertext-Policy Attribute-Based Encryption
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CODASPY
2012
12 years 1 months ago
Comparison-based encryption for fine-grained access control in clouds
Access control is one of the most important security mechanisms in cloud computing. However, there has been little work that explores various comparison-based constraints for regu...
Yan Zhu, Hongxin Hu, Gail-Joon Ahn, Mengyang Yu, H...
IACR
2011
130views more  IACR 2011»
12 years 4 months ago
Hiding the Policy in Cryptographic Access Control
Abstract. Recently, cryptographic access control has received a lot of attention, mainly due to the availability of efficient Attribute-Based Encryption (ABE) schemes. ABE allows ...
Sascha Müller, Stefan Katzenbeisser
CCS
2007
ACM
13 years 11 months ago
Attribute-based encryption with non-monotonic access structures
We construct an Attribute-Based Encryption (ABE) scheme that allows a user’s private key to be expressed in terms of any access formula over attributes. Previous ABE schemes wer...
Rafail Ostrovsky, Amit Sahai, Brent Waters
IHI
2012
217views Healthcare» more  IHI 2012»
12 years 26 days ago
Declarative privacy policy: finite models and attribute-based encryption
Regulations and policies regarding Electronic Health Information (EHI) are increasingly complex. Federal and State policy makers have called for both education to increase stakeho...
Peifung E. Lam, John C. Mitchell, Andre Scedrov, S...
CRYPTO
2012
Springer
327views Cryptology» more  CRYPTO 2012»
11 years 7 months ago
Functional Encryption for Regular Languages
We provide a functional encryption system that supports functionality for regular languages. In our system a secret key is associated with a Deterministic Finite Automata (DFA) M....
Brent Waters