Ecient Dynamic Group Signature Scheme with Veri er Loc
Dublin Core
Title
Ecient Dynamic Group Signature Scheme with Veri er Loc
Subject
Lattice based cryptography; dy-
namic group signatures; veri er local revocation;
time bound keys
namic group signatures; veri er local revocation;
time bound keys
Description
Revocation is an important feature of
group signature schemes. Veri er Local Revoca-
tion (VLR) is a popular revocation mechanism
that involves only veri ers in the revocation
process. In VLR, a revocation list is maintained
to store the information about revoked users.
The veri cation cost of VLR based schemes is
linearly proportional to the size of the revoca-
tion list. In many applications, the size of the
revocation list grows with time, which makes the
veri cation process expensive. In this paper, we
propose a lattice based dynamic group signature
using VLR and time bound keys to reduce
the size of the revocation list to speed up the
veri cation process. In the proposed scheme, an
expiration date is xed for signing key of each
group member, and veri ers can nd out (at
constant cost) if a signature is generated using
an expired key. Hence revocation information
of members who are revoked before signing key
expiry date (premature revocation) are kept in
the revocation list, and other members are part
of natural revocation. This leads to a signi cant
saving on the revocation check by assuming
natural revocation accounts for a large fraction
of the total revocation. This scheme also takes
care of non-forgeability of signing key expiry
date.
group signature schemes. Veri er Local Revoca-
tion (VLR) is a popular revocation mechanism
that involves only veri ers in the revocation
process. In VLR, a revocation list is maintained
to store the information about revoked users.
The veri cation cost of VLR based schemes is
linearly proportional to the size of the revoca-
tion list. In many applications, the size of the
revocation list grows with time, which makes the
veri cation process expensive. In this paper, we
propose a lattice based dynamic group signature
using VLR and time bound keys to reduce
the size of the revocation list to speed up the
veri cation process. In the proposed scheme, an
expiration date is xed for signing key of each
group member, and veri ers can nd out (at
constant cost) if a signature is generated using
an expired key. Hence revocation information
of members who are revoked before signing key
expiry date (premature revocation) are kept in
the revocation list, and other members are part
of natural revocation. This leads to a signi cant
saving on the revocation check by assuming
natural revocation accounts for a large fraction
of the total revocation. This scheme also takes
care of non-forgeability of signing key expiry
date.
Creator
Abhilash M H,B B Amberker
Source
www.ijcit.com
Date
March 2021
Contributor
peri irawan
Format
pdf
Language
english
Type
text
Files
Collection
Citation
Abhilash M H,B B Amberker, “Ecient Dynamic Group Signature Scheme with Veri er Loc,” Repository Horizon University Indonesia, accessed June 17, 2025, https://repository.horizon.ac.id/items/show/8978.