TY - JOUR
T1 - Combined interactive protocol for lattice-based group signature schemes with verifier-local revocation
AU - Perera, Maharage Nisansala Sevwandi
AU - Koshiba, Takeshi
N1 - Funding Information:
This work is supported in part by JSPS Grant-in-Aids for Scientic Research (A) JP16H01705 and for Scientic Research (B) JP17H01695.
Publisher Copyright:
© 2020 Inderscience Enterprises Ltd.
PY - 2020
Y1 - 2020
N2 - In group signature schemes, signers are required to prove their validity of representing the group while being anonymous to the verifiers and traceable to the authority. On the other hand, group signature schemes with verifier-local revocation require signers to prove their revocation token is not in the revocation list. This paper presents a combined interactive protocol that supports group signature schemes with explicit tracing mechanism and verifier-local revocation, where keys and revocation tokens are generated separately to achieve stronger security. This new protocol enables signers to prove that their signing is valid, their revocation tokens are not in the revocation list, and their index is correctly encrypted.
AB - In group signature schemes, signers are required to prove their validity of representing the group while being anonymous to the verifiers and traceable to the authority. On the other hand, group signature schemes with verifier-local revocation require signers to prove their revocation token is not in the revocation list. This paper presents a combined interactive protocol that supports group signature schemes with explicit tracing mechanism and verifier-local revocation, where keys and revocation tokens are generated separately to achieve stronger security. This new protocol enables signers to prove that their signing is valid, their revocation tokens are not in the revocation list, and their index is correctly encrypted.
KW - Interactive protocol
KW - Lattice-based group signatures
KW - Verifier-local revocation
KW - Zero-knowledge proof
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U2 - 10.1504/IJGUC.2020.110045
DO - 10.1504/IJGUC.2020.110045
M3 - Article
AN - SCOPUS:85092357668
SN - 1741-847X
VL - 11
SP - 602
EP - 614
JO - International Journal of Grid and Utility Computing
JF - International Journal of Grid and Utility Computing
IS - 5
ER -