Title
A countermeasure against cryptographic key leakage in cloud: public-key encryption with continuous leakage and tampering resilience
Abstract
Public-key encryption is an important security mechanism used in cloud environment. To ensure the confidentiality of data encrypted using public-key encryption, countermeasures against cryptographic key leakage by side-channel attacks should be applied to the encryption scheme implemented both in locality and in cloud server. Traditional public-key encryption does not capture side-channel attacks. Moreover, the adversary can inject fault to tamper with the secret key and observe the output of the public-key encryption scheme under this modified key which is called “tampering attack”. In this paper, we present two continuous leakage and tampering resilient CCA secure public-key encryption schemes. For implementations of our schemes during the key update, bounded number of tampering queries for arbitrary key relations and bounded leakage is allowed. By updating the secret key, our schemes are secure against continuous leakage and tampering attacks.
Year
DOI
Venue
2019
10.1007/s11227-018-2534-z
The Journal of Supercomputing
Keywords
Field
DocType
Public-key encryption, Side-channel attacks, Tampering resilience, Leakage resilience, Continuous attacks
Locality,Leakage (electronics),Confidentiality,Computer security,Computer science,Encryption,Side channel attack,Public-key cryptography,Key (cryptography),Cloud computing,Distributed computing
Journal
Volume
Issue
ISSN
75.0
SP6.0
1573-0484
Citations 
PageRank 
References 
0
0.34
51
Authors
5
Name
Order
Citations
PageRank
Chengyu Hu113228.60
Rupeng Yang2217.66
Pengtao Liu3447.45
Li Tong48741.87
Fanyu Kong525121.83