نتایج جستجو برای: group theoretical scheme

تعداد نتایج: 1453720  

Journal: :Advances in Mathematics 1986

Journal: :International Journal of Computer Mathematics 2014

2004
Jan Camenisch Jens Groth

A group signature scheme allows members of a group to sign messages anonymously. To counter misuse, the so-called group manager can revoke the anonymity. This paper contributes two results to the area of group signatures. First, we improve the state-of-theart scheme by Ateniese et al. by an order of magnitude. Our new scheme satisfies the recent security definition by Bellare et al. Second, and...

Journal: :Bulletin des Sciences Mathématiques 2010

2002
Toru Nakanishi Masayuki Tao Yuji Sugiyama

In this paper, a group signature scheme committing the group itself is proposed. In normal group signature schemes, a group member can anonymously sign a message on behalf of a group, and the anonymity of the signature can be revoked by only a designated authority. Consider a situation that multiple groups exist. In the proposed scheme, the signature hides not only the identity of the signer, b...

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