2nd International ICST Workshop on Trusted Collaboration

Research Article

Controlled Sharing of Identity Attributes for Better Privacy

  • @INPROCEEDINGS{10.1109/COLCOM.2007.4553801,
        author={Rodrigo Lopes and Dongwan Shin},
        title={Controlled Sharing of Identity Attributes for Better Privacy},
        proceedings={2nd International ICST Workshop on Trusted Collaboration},
        keywords={Digital identity federated systems privacy credentials},
  • Rodrigo Lopes
    Dongwan Shin
    Year: 2008
    Controlled Sharing of Identity Attributes for Better Privacy
    DOI: 10.1109/COLCOM.2007.4553801
Rodrigo Lopes1,*, Dongwan Shin1,*
  • 1: Department of Computer Science, New Mexico Tech, Socorro, NM, USA
*Contact email: rodrigo@nmt.edu, doshin@nmt.edu


In recent years user centricity has drawn a lot of attention as a promising component to advance federated identity management (FIM) systems. The basic notion is to give users a larger degree of control over their attribute data that comprises digital identities on a federated network, thus providing an ideal mechanism for upholding user privacy. One of the fundamental problems facing user centricity in this context is how a user can selectively share her identity attributes certified by an identity provider (IdP) to a service provider (SP). In this paper we present an approach to addressing the problem, which allows a user to share only selected attributes from a larger set of attributes that form his digital identity credential for better privacy. Our approach enables such sharing to occur without IdP’s intervention in every transaction.