TY - GEN
T1 - Attribute-Based Anonymous Credential
T2 - 21st International Conference on Cryptology and Network Security, CANS 2022
AU - Chan, Kwan Yin
AU - Yuen, Tsz Hon
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - User attributes can be authenticated by an attribute-based anonymous credential while keeping the anonymity of the user. Most attribute-based anonymous credential schemes are designed specifically for either multi-use or single-use. In this paper, we propose a unified attribute-based anonymous credential system, in which users always obtain the same format of credential from the issuer. The user can choose to use it for an efficient multi-use or single-use show proof. It is a more user-centric approach than the existing schemes. Technically, we propose an interactive approach to the credential issuance protocol using a two-party computation with an additive homomorphic encryption. At the same time, it keeps the security property of impersonation resilience, anonymity, and unlinkability. Apart from the interactive protocol, we further design the show proofs for efficient single-use credentials which maintain the user anonymity.
AB - User attributes can be authenticated by an attribute-based anonymous credential while keeping the anonymity of the user. Most attribute-based anonymous credential schemes are designed specifically for either multi-use or single-use. In this paper, we propose a unified attribute-based anonymous credential system, in which users always obtain the same format of credential from the issuer. The user can choose to use it for an efficient multi-use or single-use show proof. It is a more user-centric approach than the existing schemes. Technically, we propose an interactive approach to the credential issuance protocol using a two-party computation with an additive homomorphic encryption. At the same time, it keeps the security property of impersonation resilience, anonymity, and unlinkability. Apart from the interactive protocol, we further design the show proofs for efficient single-use credentials which maintain the user anonymity.
KW - Anonymous credential
KW - Multi-use
KW - Single-use
KW - Zero-knowledge proof
UR - https://www.scopus.com/pages/publications/85142693929
U2 - 10.1007/978-3-031-20974-1_5
DO - 10.1007/978-3-031-20974-1_5
M3 - Conference contribution
AN - SCOPUS:85142693929
SN - 9783031209734
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 89
EP - 121
BT - Cryptology and Network Security - 21st International Conference, CANS 2022, Proceedings
A2 - Beresford, Alastair R.
A2 - Patra, Arpita
A2 - Bellini, Emanuele
Y2 - 13 November 2022 through 16 November 2022
ER -