Results 131 to 140 of about 473 (162)

Selective decryption of outsourced IoT data

2015 IEEE 2nd World Forum on Internet of Things (WF-IoT), 2015
Outsourcing of IoT-data is a common concept when using third-party services, e.g. an external building management service is given access to the building's sensor measurements. However, the measurements captured from building systems often need to be protected from unauthorized access, because they are linked to persons, processes or business secrets ...
Jens-Matthias Bohli, Roman Kurpatov, Mischa Schmidt   +2 more
openaire   +1 more source

Outsourcing Decryption of Attribute Based Encryption with Energy Efficiency

2015 10th International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC), 2015
In this paper, we propose a new efficient scheme to outsource the the decryption of attribute based encryption with energy efficiency. We observe all the previous work on out-sourcing the decryption of ABE cares little about the ciphertext length. Almost all of them have linear length ciphertext with the attributes or the policy.
Xu An Wang 0014, Jianfeng Ma 0001, Fatos Xhafa   +2 more
openaire   +1 more source

Efficient and Secure Outsourcing Scheme for RSA Decryption in Internet of Things

IEEE Internet of Things Journal, 2020
Rivest–Shamir–Adleman (RSA) is one of the widely deployed public-key algorithms. Yet, its decryption facet is very time consuming for resource-constrained Internet-of-Thing (IoT) devices, as it is based on the modular exponentiation of a large number. Although several variants of RSA have been designed to accelerate decryption, the outcomes have been ...
Hanlin Zhang 0001, Jia Yu 0003, Chengliang Tian, Le Tong, Jie Lin 0002, Linqiang Ge, Huaqun Wang   +6 more
openaire   +1 more source

Offline/online attribute‐based encryption with verifiable outsourced decryption

Concurrency and Computation: Practice and Experience, 2016
SummaryIn this big data era, service providers tend to put the data in a third‐party cloud system. Social networking websites are typical examples. To protect the security and privacy of the data, data should be stored in encrypted form. This brings forth new challenges: how to allow different users to access only the authorized part of the data ...
Zechao Liu, Zoe Lin Jiang, Xuan Wang 0002, Xinyi Huang 0001, Siu-Ming Yiu, Kunihiko Sadakane   +5 more
openaire   +2 more sources

Attribute-Based Encryption with Publicly Verifiable Outsourced Decryption

2019
Attribute-based encryption (ABE) is a useful cryptographic primitive for access control and fine-grained sharing on encrypted data. However, the main drawback of ABE is that the computational cost grows linearly with the complexity of the access policy. One of the promising solutions for the problem is to outsource computation securely.
Hui Zheng, Jun Shao 0001, Guiyi Wei, Li Hu, Bianjing Pan, Kai Liu, Xiaohang Mao   +6 more
openaire   +1 more source

A BGN Type Outsourcing the Decryption of CP-ABE Ciphertexts

2017
Cloud computing security is the key bottleneck that restricts its development, and access control on the result of cloud computing is a hot spot of current research. Based on the somewhat homomorphic encryption BGN and combined with Green’s scheme that proposed outsourcing the decryption of CP-ABE (Ciphertext-Policy Attribute-Based Encryption ...
Zhenlin Li, Wei Zhang, Yitao Ding, Ping Bai   +3 more
openaire   +1 more source

Attribute-based encryption with encryption and decryption outsourcing

2014
In this paper we propose a new scheme for ciphertext-policy attribute-based encryption that allows outsourcing of computationally expensive encryption and decryption steps. The scheme constitutes an important building block for mobile applications where both the host and users use mobile devices with limited computational power. In the proposed scheme,
Asim, M., Petkovic, M., Ignatenko, T.
openaire   +2 more sources

Fully Secure ABE with Outsourced Decryption against Chosen Ciphertext Attack

2021
Attribute-based encryption (ABE) provides fine-grained access control on encrypted data, but it is not suitable for limited-resource devices due to the inefficiency of decryption. To solve this problem, Green et al. proposed a new paradigm named attribute-based encryption with outsourced decryption (OD-ABE).
Ti Wang, Yongbin Zhou, Hui Ma 0002, Yuejun Liu, Rui Zhang 0002   +4 more
openaire   +1 more source

Flexible Authorization by Generating Public Re-decryption Trapdoor in Outsourced Scenarios

2011 IEEE 4th International Conference on Cloud Computing, 2011
With the rapid application of service-oriented technologies, service and data outsourcing has become a practical and useful computing paradigm. Combined use of access control and cryptography was proposed by many researchers to protect sensitive information in this outsourcing scenario.
Yang Zhang 0015, Junliang Chen 0001
openaire   +1 more source

Decentralized Access Control on Data in the Cloud with Fast Encryption and Outsourced Decryption

2015 IEEE Global Communications Conference (GLOBECOM), 2014
Fine grained access control is a requirement for data stored in untrusted servers like clouds. Owing to the large volume of data, decentralized key management schemes are preferred over centralized ones. Often encryption and decryption are quite expensive and not practical when users access data from resource constrained devices.
Sourya Joyee De, Sushmita Ruj
openaire   +1 more source