Error message

  • Notice: Undefined offset: 223 in user_node_load() (line 3697 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Undefined offset: 223 in user_node_load() (line 3698 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Undefined offset: 223 in user_node_load() (line 3699 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Undefined offset: 223 in user_node_load() (line 3697 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Undefined offset: 223 in user_node_load() (line 3698 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Undefined offset: 223 in user_node_load() (line 3699 of /home/tcipgpro/public_html/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /home/tcipgpro/public_html/modules/user/user.module).

Dynamic Universal Accumulators for DDH Groups and Their Application to Attribute-Based Anonymous Credential Systems

Au, M. H., Tsang, P., Susilo, W., Mu, Y.
Citation:

Cryptographers' Track at the RSA Conference 2009. Topics in Cryptography - CT-RSA 2009, Lecture Notes in Computer Science Volume 5473, 2009, pp 295-308.

Visit Publisher Online Entry:
Abstract:

We present the first dynamic universal accumulator that allows (1) the accumulation of elements in a DDH-hard group G and (2) one who knows x such that y = g x has — or has not — been accumulated, where g generates G , to efficiently prove her knowledge of such x in zero knowledge, and hence without revealing, e.g., x or y.

We introduce the Attribute-Based Anonymous Credential System, which allows the verifier to authenticate anonymous users according to any access control policy expressible as a formula of possibly negated boolean user attributes. We construct the system from our accumulator.

Publication Status:
Published
Publication Type:
Proceedings
Publication Date:
04/20/2009
Copyright Notice:

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

  1. The following copyright notice applies to all of the above items that appear in IEEE publications: "Personal use of this material is permitted. However, permission to reprint/publish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from IEEE."

  2. The following copyright notice applies to all of the above items that appear in ACM publications: "© ACM, effective the year of publication shown in the bibliographic information. This file is the author’s version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in the journal or proceedings indicated in the bibliographic data for each item."

  3. The following copyright notice applies to all of the above items that appear in IFAC publications: "Document is being reproduced under permission of the Copyright Holder. Use or reproduction of the Document is for informational or personal use only."