ATDD: Fine-Grained Assured Time-Sensitive Data Deletion Scheme in Cloud Storage
Zhengyu Yue, Yuanzhi Yao, Weihai Li, Nenghai Yu

TL;DR
This paper introduces ATDD, a scheme that ensures time-sensitive data in cloud storage is automatically and securely deleted after a specified expiration, using a novel encryption method with verification capabilities.
Contribution
The paper proposes a novel ATDD scheme embedding time trapdoors in CP-ABE for fine-grained, verifiable, and automatic data deletion in cloud storage scenarios.
Findings
Provides secure, automatic data self-destruction after expiration
Ensures fine-grained access control with verifiable deletion
Demonstrates security and practicality through analysis
Abstract
With the rapid development of general cloud services, more and more individuals or collectives use cloud platforms to store data. Assured data deletion deserves investigation in cloud storage. In time-sensitive data storage scenarios, it is necessary for cloud platforms to automatically destroy data after the data owner-specified expiration time. Therefore, assured timesensitive data deletion should be sought. In this paper, a finegrained assured time-sensitive data deletion (ATDD) scheme in cloud storage is proposed by embedding the time trapdoor in Ciphertext-Policy Attribute-Based Encryption (CP-ABE). Timesensitive data is self-destructed after the data owner-specified expiration time so that the authorized users cannot get access to the related data. In addition, a credential is returned to the data owner for data deletion verification. This proposed scheme provides solutions for…
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Taxonomy
TopicsCloud Data Security Solutions · Cryptography and Data Security · Privacy-Preserving Technologies in Data
