一种基于密文策略属性的加密方案，密文长度恒定

Q2 Mathematics International Journal of Applied Cryptography Pub Date : 2009-04-02 DOI:10.1504/IJACT.2010.033798

K. Emura, A. Miyaji, Kazumasa Omote, Akito Nomura, Masakazu Soshi

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引用次数: 316

摘要

基于属性的加密(ABE)是一种加密方案，其中具有某些属性的用户可以解密与这些属性关联的密文。但是，密文的长度取决于先前ABE方案中属性的数量。本文提出了一种具有恒定密文长度的基于策略属性的加密算法。此外，配对计算的次数也是恒定的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A ciphertext-policy attribute-based encryption scheme with constant ciphertext length

An Attribute-Based Encryption (ABE) is an encryption scheme, where users with some attributes can decrypt ciphertexts associated with these attributes. However, the length of the ciphertext depends on the number of attributes in previous ABE schemes. In this paper, we propose a new Ciphertext-Policy Attribute-Based Encryption (CP-ABE) with constant ciphertext length. Moreover, the number of pairing computations is also constant.

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