Study on provable security scheme of ID-based threshold decryption

doi:10.3778/j.issn.1002-8331.2009.12.025

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (12): 75-77.DOI: 10.3778/j.issn.1002-8331.2009.12.025

• 网络、通信、安全 • Previous Articles Next Articles

Study on provable security scheme of ID-based threshold decryption

WANG Xue-guang

School of Information Science and Technology，East China University of Political Science and Law，Shanghai 201620，China

Received:2009-01-15 Revised:2009-02-16 Online:2009-04-21 Published:2009-04-21
Contact: WANG Xue-guang

可证安全的身份门限解密机制研究

王学光

华东政法大学信息科学技术学院，上海 201620

通讯作者: 王学光

Abstract

Abstract: This paper presents an ID-based threshold decryption scheme based on works of Boneh and Boyen，which can be proved to be secure without random oracles.It is validated that it has ID-based adaptive chosen ciphertext security on solving decisional （t，q，ε）-BDHI problem assumption.

Key words: provable security, ID based cryptography, threshold decryption

摘要： 通过对以往门限解密机制的研究，在Boneh和Boyen工作的基础上，提出了一个在标准模型下可证安全的基于身份的门限解密机制。并在解决判定性（t，q，ε）-BDHI困难问题假设基础上，证明此机制在标准模型下是指定身份适应性选择密文安全的。

关键词: 可证安全, 基于身份加密, 门限解密

WANG Xue-guang. Study on provable security scheme of ID-based threshold decryption[J]. Computer Engineering and Applications, 2009, 45(12): 75-77.

王学光. 可证安全的身份门限解密机制研究[J]. 计算机工程与应用, 2009, 45(12): 75-77.

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Study on provable security scheme of ID-based threshold decryption

可证安全的身份门限解密机制研究

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