کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
392169 664685 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Directly revocable key-policy attribute-based encryption with verifiable ciphertext delegation
ترجمه فارسی عنوان
رمزگذاری مبتنی بر ویژگی کلید به طور مستقیم قابل لغو با اعلان رمزنگاری قابل تایید است
کلمات کلیدی
رمزگذاری مبتنی بر مشخصه، اعلان رمزنگاری قابل تأیید، لغو مستقیم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
چکیده انگلیسی

Attribute-based encryption (ABE) enables an access control mechanism by specifying access control policies among decryption keys and ciphertexts. In this paper, we propose a novel ABE variant, dubbed directly revocable key-policyABEwith verifiable ciphertext delegation (drvuKPABE), which supports direct revocation and verifiable ciphertext delegation. The drvuKPABE offers the following features which are promising in the data sharing applications: (1) it allows the trusted authority to revoke users by solely updating the revocation list while mitigating the interaction with non-revoked users, which is unlikely to indirectly revokable ABE; (2) it allows the third party to update ciphertexts with public information so that those non-revoked users cannot decrypt them; and (3) it enables any auditor (authorized by data owners) to verify whether the untrusted third party updated ciphertexts correctly or not. We formalize the syntax and security properties for drvuKPABE, and propose the construction based on the multilinear maps. Our solution attains the security properties under the (d+3)(d+3)-Multilinear Decisional Diffie–Hellman assumption in the random oracle model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information Sciences - Volume 295, 20 February 2015, Pages 221–231
نویسندگان
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