Verifiable and Exculpable Outsourced Attribute-Based Encryption for Access Control in Cloud Computing

@article{Ma2017VerifiableAE,
  title={Verifiable and Exculpable Outsourced Attribute-Based Encryption for Access Control in Cloud Computing},
  author={Hui Ma and Rui Zhang and Zhiguo Wan and Yao Lu and Suqing Lin},
  journal={IEEE Transactions on Dependable and Secure Computing},
  year={2017},
  volume={14},
  pages={679-692}
}
We propose two ciphertext-policy attribute-based key encapsulation mechanism (CP-AB-KEM) schemes that for the first time achieve both outsourced encryption and outsourced decryption in two system storage models and give corresponding security analysis. In our schemes, heavy computations are outsourced to Encryption Service Providers (ESPs) or Decryption Service Providers (DSPs), leaving only one modular exponentiation computation for the sender or the receiver. Moreover, we propose a general… CONTINUE READING

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