Sciweavers

Share
IJNSEC
2008

Solutions to Key Exposure Problem in Ring Signature

9 years 11 months ago
Solutions to Key Exposure Problem in Ring Signature
In this paper, we suggest solutions to the key exposure problem in ring signature. In particular, we propose the first forward secure ring signature scheme and the first key-insulated ring signature scheme. Both constructions allow a (t, n)-threshold setting. That is, even t secret keys are compromised, the validity of all forward secure ring signatures generated in the past is still preserved. In the other way, the compromise of up to all secret keys does not allow any adversary to generate a valid key-insulated ring signature for the remaining time periods. All our proposed schemes are proven secure in the random oracle model.
Joseph K. Liu, Duncan S. Wong
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2008
Where IJNSEC
Authors Joseph K. Liu, Duncan S. Wong
Comments (0)
books