Paper Info
Title
Comment on Wang et al.'s anonymous multi-receiver ID-based encryption scheme and its improved schemes
Abstract
As an important cryptographic primitive, anonymous receiver encryption can protect the privacy of the receiver. To achieve it, Fan et al. proposed an anonymous multi-receiver ID-based encryption by using Lagrange interpolating polynomial in 2010. However, Wang et al. showed that Fan et al.'s scheme did not satisfy the anonymity of the receivers. Then they provided an improved scheme to fix it and showed that the improved scheme was secure. Unfortunately, in this paper, we pointed out that Wang et al.'s improved scheme did not satisfy the receiver's anonymity by analysing the security of the scheme. After analysing the reason to produce such flaws, we gave two improved methods to achieve the anonymity of the receivers. In the first improved scheme, the ciphertext length and computation complexity of producing and recovering ciphertext are more efficient than the ones in Wang et al.'s scheme. Furthermore, the second improved scheme has less computation cost than the first improved scheme in terms of encryption and decryption. The cipher length is 512 + | E | + w bits. To the best of our knowledge, our second improved scheme is most efficient in terms of computational cost.
Year
DOI
Venue
2013
10.1504/IJIIDS.2013.056386
IJIIDS
Keywords
Field
DocType
anonymous multi-receiver id-based encryption,improved scheme,lagrange interpolating polynomial,computation complexity,anonymous receiver encryption,ciphertext length,cipher length,encryption scheme,computational cost,computation cost,improved method,id based cryptography,security analysis
Cipher,ID-based encryption,Computer science,Encryption,Cryptographic primitive,Theoretical computer science,Security analysis,Ciphertext,ID-based cryptography,Anonymity
Journal
Volume
Issue
Citations 
7
5
1
PageRank 
References 
Authors
0.35
9
3
Name
Order
Citations
PageRank
Jianhong Zhang120029.25
Yuwei Xu210.35
Jiancheng Zou3104.41