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» A Formalization of Distributed Authorization with Delegation
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77
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CCS
2009
ACM
16 years 29 days ago
Conditional proxy re-encryption secure against chosen-ciphertext attack
In a proxy re-encryption (PRE) scheme [4], a proxy, authorized by Alice, transforms messages encrypted under Alice's public key into encryptions under Bob's public key w...
Jian Weng, Robert H. Deng, Xuhua Ding, Cheng-Kang ...
INDOCRYPT
2004
Springer
15 years 5 months ago
Revisiting Fully Distributed Proxy Signature Schemes
In a proxy signature scheme, a potential signer delegates his capabilities to a proxy signer, who can sign documents on behalf of him. The recipient of the signature verifies both...
Javier Herranz, Germán Sáez
ENTCS
2008
130views more  ENTCS 2008»
15 years 12 days ago
The SPARTA Pseudonym and Authorization System
This paper deals with privacy-preserving (pseudonymized) access to a service resource. In such a scenario, two opposite needs seem to emerge. On one side, the service provider may...
Giuseppe Bianchi, M. Bonola, Vincenzo Falletta, Fr...
84
Voted
POLICY
2004
Springer
15 years 5 months ago
Cassandra: Distributed Access Control Policies with Tunable Expressiveness
We study the specification of access control policy in large-scale distributed systems. Our work on real-world policies has shown that standard policy idioms such as role hierarc...
Moritz Y. Becker, Peter Sewell
JCS
2007
103views more  JCS 2007»
15 years 7 days ago
Risk management for distributed authorization
Distributed authorization takes into account several elements, including certificates that may be provided by non-local actors. While most trust management systems treat all asse...
Christian Skalka, Xiaoyang Sean Wang, Peter C. Cha...