naa a22 4500 510796575 CHVBK 20180411083338.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11277-012-0977-8 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0977-8 Slight Homomorphic Signature for Access Controlling in Cloud Computing [Elektronische Daten] [Zhiwei Wang, Kewei Sha, Wei Lv] With the popularity of cloud computing, how to securely authenticate a user while not releasing user's sensitive information becomes a challenge. In this paper, we introduce a slight homomorphic signature, which is suitable to implement an access controlling service in cloud computing. In slight homomorphic signature, each user in cloud computing who have a set of identity attributes, firstly computes a full signature on all his identity attributes, and sends it to a semi-trusted access controlling server. The access controlling server verifies the full signature for all identity attributes. After then, if the user wants to require a cloud service, which may have a special requirement on one of the identity attributes, the user only needs to securely send the cloud service's name to the access controlling server. The access controlling server which does not know the secret key can compute a partial signature on this special identity attribute, and then sends it to the cloud server for authentication. In the paper, we give a formal secure definition of this slight homomorphic signature, and construct a scheme from Boneh-Boyen signature. We prove that our scheme is secure under q-SDH problem with a weak adversary. Springer Science+Business Media New York, 2013 Slight homomorphic signature nationallicence Identity authentication nationallicence Cloud computing nationallicence Boneh-Boyen signature nationallicence q-SDH assumption nationallicence Wang Zhiwei College of Computer, Nanjing University of Posts and Telecommunications, 210003, Nanjing, China aut Sha Kewei Department of Computer Science, Oklahoma City University, 73106, Oklahoma City, OK, USA aut Lv Wei College of Computer, Nanjing University of Posts and Telecommunications, 210003, Nanjing, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 73/1(2013-11-01), 51-61 0929-6212 73:1<51 2013 73 11277 https://doi.org/10.1007/s11277-012-0977-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0977-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Zhiwei College of Computer, Nanjing University of Posts and Telecommunications, 210003, Nanjing, China aut NATIONALLICENCE 700 1- Sha Kewei Department of Computer Science, Oklahoma City University, 73106, Oklahoma City, OK, USA aut NATIONALLICENCE 700 1- Lv Wei College of Computer, Nanjing University of Posts and Telecommunications, 210003, Nanjing, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 73/1(2013-11-01), 51-61 0929-6212 73:1<51 2013 73 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer