Paper 2019/1442
Server-Aided Revocable Identity-Based Encryption Revisited
Fei Meng
Abstract
Efficient user revocation has always been a challenging problem in identity-based encryption (IBE).
Boldyreva et al. (CCS 2008) first proposed and formalized the notion of revocable IBE (RIBE) based on a tree-based revocation method.
In their scheme, each user is required to store a number of long-term secret keys and all non-revoked users have to communicate with the key generation center periodically to update its decryption key.
To reduce the workload on the user side, Qin et al. (ESORICS 2015) proposed a new system model, server-aided revocable IBE (SR-IBE).
In SR-IBE model, each user is required to keep only one private key
Metadata
- Available format(s)
- -- withdrawn --
- Category
- Public-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- IBERevocationServer-aided
- Contact author(s)
- fdu_clx @ 163 com
- History
- 2021-08-03: withdrawn
- 2019-12-12: received
- See all versions
- Short URL
- https://ia.cr/2019/1442
- License
-
CC BY