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Comment on 'Circuit Ciphertext-Policy Attribute-Based Hybrid Encryption with Verifiable Delegation in Cloud Computing'

par Cao, Zhengjun ;Markowitch, Olivier
Référence IEEE transactions on parallel and distributed systems, 32, 2, page (392-393), 9186640
Publication Publié, 2020-09-04

Article révisé par les pairs

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Résumé :

The scheme [1] is flawed because: (1) its circuit access structure is confusingly described; (2) the cloud server cannot complete the related computations; (3) some users can conspire to generate new decryption keys, without the help of the key generation authority.