Mobile Cloud Computing: Taxonomy and Challenges

Table 3

Summary of security and privacy techniques in MCC.

	Issues	Contribution	Techniques	Implementation	Metrics	Limitations
CMReS [38]	Security and privacy issue after migration to the cloud	Scheme	Encryption scheme	Mobile phone, an Android mobile application developed computer, and WIFI	(i) Turnaround time; (ii) Energy consumption; (iii) Resource utilization	Encryption and decryption of task offloading are not considered
ESACSM [39]	Security challenges in mobile cloud	Secured access for mobile cloud	Architecture and algorithm.	Mobile devices, computing devices, and wireless network	(i) Response time; (ii) Encryption time; (iii) Decryption time; (iv) Latency	Increase in access time due to the deployment of cloudlet and encryption-decryption approach
RMTAC [40]	Due to the absence of fine-grained secure access control model to protect privacy information from unauthorized access	Secured fine-grained access control	Reputation and trustworthy scheme	OPNET, wireless mesh backbone, and a cloud service platform	(i) Effective recommendation rate, accuracy rate and utility for RMTAC; (ii) Successful acceptance rate and success rate of malicious access	Encryption/signature based privacy preserving skill are not considered
EACDAC [41]	Issue of secure data storage, secure computation, and fine-grained access control in data sharing for these resource-constrained devices in a cloud computing	Framework for data access control, including an encryption scheme	Framework and scheme	Mobi-cloud platform and Android smart phones	(i) Computation overhead	Time increase due to complex encryption-decryption scheme
PADMC [42]	Lack of efficient authentication scheme for distributed mobile cloud computing services	Single key authentication scheme	Authentication scheme based on bilinear pairing cryptosystem and dynamic nonce generation	Not mentioned	Computation time	Cryptographic techniques are computationally cumbersome for the real-time execution