Paper Info
Title
A New Encrypted Data Switching Protocol: Bridging Ibe And Abe Without Loss Of Data Confidentiality
Abstract
Encryption technologies have become one of the most prevalent solutions to safeguard data confidentiality in many real-world applications, e.g., cloud-based data storage systems. Encryption outputting a relatively "static'' format of encrypted data, however, may hinder further data operations. For example, encrypted data may need to be "transformed'' into other formats for computation or other purposes. To enable encryption to be used in another device equipped with a different encryption mechanism, the concept of encryption switching was first proposed in CRYPTO 2016 for conversion particularly between Paillier and ElGamal encryptions. This paper considers the conversion between conventional identity-based and attribute-based encryptions and further proposes a concrete construction via the technique of proxy re-encryption. The construction is proved to be CPA secure in the standard model under q-decisional parallel bilinear Diffie-Hellman exponent assumption. The performance comparisons highlight that our bridging mechanism reduces computation and communication cost on the client side, especially when the data of the client is encrypted and outsourced to a remote cloud. The computational costs with respect to re-encryption (on the server side) and decryption (on the client side) are acceptable in practice.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2906290
IEEE ACCESS
Keywords
Field
DocType
Data security, encryption switching, identity-based encryption, attribute-based encryption, CPA security, standard model
Server-side,Client-side,Cryptographic protocol,Computer science,Computer data storage,Bridging (networking),Computer network,Encryption,ElGamal encryption,Cloud computing
Journal
Volume
ISSN
Citations 
7
2169-3536
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Kai He164.18
Yijun Mao281.85
Jianting Ning310014.61
Kaitai Liang461245.13
Xinyi Huang52245129.63
Emmanouil A. Panaousis610114.94
Georgios Loukas732926.79