Comment on “Secure Data Access Control With Ciphertext Update and Computation Outsourcing in Fog Computing for Internet of Things”
In this comment paper, we point out a security flaw in a data access control system which is built on ciphertext-policy attribute-based encryption (CP-ABE) and attribute-based signature schemes. In particular, we show that the underlying CP-ABE is vulnerable to the collusion attack. As a result, mal...
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Format: | Article |
Language: | English |
Published: |
IEEE
2018-01-01
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Series: | IEEE Access |
Subjects: | |
Online Access: | https://ieeexplore.ieee.org/document/8340785/ |