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Secure Password-Protected Encryption Key for Deduplicated Cloud Storage Systems
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DOI：10.1109/TDSC.2021.3074146.png)
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摘要
En 中文
In this article, we propose SPADE, an encrypted data deduplication scheme that resists compromised key servers and frees users from the key management problem. Specifically, we propose a proactivization mechanism for the servers-aided message-locked encryption (MLE) to periodically substitute key servers with newly employed ones, which renews the security protection and retains encrypted data deduplication. We present a servers-aided password-hardening protocol to resist dictionary guessing attacks. Based on the protocol, we further propose a password-based layered encryption mechanism and a password-based authentication mechanism and integrate them into SPADE to enable users to access their data only using their passwords. Provable security and high efficiency of SPADE are demonstrated by comprehensive analyses and experimental evaluations.
Keyword:
Servers
Maximum likelihood estimation
Cloud computing
Password
Encryption
Security
Protocols
Message-locked encryption
brute-force attacks
password-hardening protocol
password-based layered encryption
dictionary guessing attacks
password-based authentication
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7.5
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2.5K
被引数:
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