Identity-Based Encryption with Outsourced Revocation in Cloud Computing

Li, Jin; Li, Jingwei; Chen, Xiaofeng; Jia, Chunfu; Lou, Wenjing

doi:10.1109/tc.2013.208

Cited by 333 publications

(104 citation statements)

References 38 publications

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“…The private key for the user in traditional IBE schemes [29] is generated by the Private Key Generation Center (PKG). However, in a large scale network, such as s-health, the number of users is huge, and the task of PKG is too heavy and it is difficult to manage the user's private key.…”

Section: Related Workmentioning

confidence: 99%

A Secure and Privacy-Aware Smart Health System with Secret Key Leakage Resilience

Zhang

Lang

Zheng

et al. 2018

Security and Communication Networks

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With the development of the smart health (s-health), data security and patient privacy are becoming more and more important. However, some traditional cryptographic schemes can not guarantee data security and patient privacy under various forms of leakage attacks. To prevent the adversary from capturing the part of private keys by leakage attacks, we propose a secure leakageresilient s-health system which realizes privacy protection and the safe transmission of medical information in the case of leakage attacks. The key technique is a promising public key cryptographic primitive called leakage-resilient anonymous Hierarchical Identity-Based Encryption. Our construction is proved to be secure against chosen plaintext attacks in the standard model under the Diffie-Hellman exponent assumption and decisional linear assumption. We also blind the public parameters and ciphertexts by using double exponent technique to achieve the recipient anonymity. Finally, the performance analysis shows the practicability of our scheme, and the leakage rate of the private key approximates to 1/6.

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Section: Related Workmentioning

confidence: 99%

A Secure and Privacy-Aware Smart Health System with Secret Key Leakage Resilience

Zhang

Lang

Zheng

et al. 2018

Security and Communication Networks

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“…computing [21] The researchers separate the encryption and decryption process into two cloud service provider one to Encryption / Decryption and other for Storage without the decryption Key. There is no way for the Storage service to access the users Encrypted data.…”

Section: E Survey On Secure Access and Storage Of Data In Cloudmentioning

confidence: 99%

Security Problems in Cloud Computing

Motawie¹,

El-Khouly²,

El-Seoud

2016

Int. J. Recent Contrib. Eng. Sci. IT

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Abstract-Cloud is a pool of computing resources which are distributed among cloud users. Cloud computing has many benefits like scalability, flexibility, cost savings, reliability, maintenance and mobile accessibility. Since cloudcomputing technology is growing day by day, it comes with many security problems. Securing the data in the cloud environment is most critical challenges which act as a barrier when implementing the cloud. There are many new concepts that cloud introduces, such as resource sharing, multitenancy, and outsourcing, create new challenges for the security community. In this work, we provide a comparable study of cloud computing privacy and security concerns. We identify and classify known security threats, cloud vulnerabilities, and attacks

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“…Ghebghoub et al (2014) proposed a security model that gives users a possibility to control security of their data. Li et al (2015) introduced outsourcing computation into identity-based encryption (IBE) and proposed a revocable IBE to tackling the issue of identity revocation. proposed a new secure outsourced attributebased encryption system to support both secure outsourced key-issuing and decryption.…”

Section: Related Workmentioning

confidence: 99%

An intelligent character recognition method to filter spam images on cloud

et al. 2015

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Cloud storage has become an important way for data sharing in recent years. Data protection for data owner and harmful data filtering for data recipients are two nonnegligible problems in cloud storage. Illegal or unsuitable messages on cloud have a negative impact on minors and they are easily converted into images to avoid text-based filtering. To detect the spam image with the embedded harmful messages on cloud, soft computing methods are required for intelligent character recognition. HOG, proposed by Dalal and Triggs, has been demonstrated so far to be one of the best features for intelligent character recognition. A pre-defined sliding window is always used for the generation of candidate character images when HOG is applied to recognize the whole word. However, due to the difference in character sizes, the pre-defined window cannot exactly match with each character. Variations on scale and translation usually occur in the character image to be recognized, which have a great influence on the performance of intelligent character recognition. Aiming to solve this problem, STRHOG, an extended version of HOG, is proposed in this paper. Experiments on two public datasets and one our dataset have shown encouraging results for our work. The improved intelligent character recognition is helpful for filtering spam images on cloud. To make a fair comparison with other methods, nearest neighbor classifier is used for the intelligent character recognition. It is expected that the performance should be further improved by using better classifiers such as fuzzy neural network.

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Identity-Based Encryption with Outsourced Revocation in Cloud Computing

Cited by 333 publications

References 38 publications

A Secure and Privacy-Aware Smart Health System with Secret Key Leakage Resilience

A Secure and Privacy-Aware Smart Health System with Secret Key Leakage Resilience

Security Problems in Cloud Computing

An intelligent character recognition method to filter spam images on cloud

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