@Article{cmc.2020.011668,
AUTHOR = {Jieren Cheng, Jun Li, Naixue Xiong, Meizhu Chen, Hao Guo, Xinzhi Yao},
TITLE = {Lightweight Mobile Clients Privacy Protection Using Trusted  Execution Environments for Blockchain},
JOURNAL = {Computers, Materials \& Continua},
VOLUME = {65},
YEAR = {2020},
NUMBER = {3},
PAGES = {2247--2262},
URL = {http://www.techscience.com/cmc/v65n3/40167},
ISSN = {1546-2226},
ABSTRACT = {Nowadays, as lightweight mobile clients become more powerful and widely 
used, more and more information is stored on lightweight mobile clients, user sensitive data 
privacy protection has become an urgent concern and problem to be solved. There has been 
a corresponding rise of security solutions proposed by researchers, however, the current 
security mechanisms on lightweight mobile clients are proven to be fragile. Due to the fact 
that this research field is immature and still unexplored in-depth, with this paper, we aim to 
provide a structured and comprehensive study on privacy protection using trusted execution 
environment (TEE) for lightweight mobile clients. This paper presents a highly effective 
and secure lightweight mobile client privacy protection system that utilizes TEE to provide 
a new method for privacy protection. In particular, the prototype of Lightweight Mobile 
Clients Privacy Protection Using Trusted Execution Environments (LMCPTEE) is built 
using Intel software guard extensions (SGX) because SGX can guarantee the integrity, 
confidentiality, and authenticity of private data. By putting lightweight mobile client critical 
data on SGX, the security and privacy of client data can be greatly improved. We design 
the authentication mechanism and privacy protection strategy based on SGX to achieve 
hardware-enhanced data protection and make a trusted connection with the lightweight 
mobile clients, thus build the distributed trusted system architecture. The experiment 
demonstrates that without relying on the performance of the blockchain, the LMCPTEE is 
practical, feasible, low-performance overhead. It can guarantee the privacy and security of 
lightweight mobile client private data.},
DOI = {10.32604/cmc.2020.011668}
}