Paper Info
Title
Security Of Cloud-Based Revocable Identity-Based Proxy Re-Encryption Scheme
Abstract
Designing secure revocable storage systems for a large number of users in a cloud-based environment is important. Cloud storage systems should allow its users to dynamically join and leave the storage service. Further, the rights of the users to access the data should be changed accordingly. Recently, Liang et al. proposed a cloud-based revocable identity-based proxy re-encryption (CR-IB-PRE) scheme that supports user revocation and delegation of decryption rights. Moreover, to reduce the size of the key update token, they employed a public key broadcast encryption system as a building block. In this paper, we show that the CR-IB-PRE scheme with the reduced key update token size is not secure against collusion attacks.
Year
DOI
Venue
2016
10.1587/transinf.2016EDL8042
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS
Keywords
Field
DocType
revocable identity-based encryption, key revocation, cloud-based identity-based proxy re-encryption, ciphertext update
Computer vision,Internet privacy,Computer security,Computer science,Attribute-based encryption,Plaintext-aware encryption,Encryption,Key revocation,Probabilistic encryption,Artificial intelligence,Proxy re-encryption,Cloud computing
Journal
Volume
Issue
ISSN
E99D
7
1745-1361
Citations 
PageRank 
References 
0
0.34
4
Authors
2
Name
Order
Citations
PageRank
Seunghwan Park1262.67
Dong Hoon Lee22024192.87