一种匿名的多接收者密钥封装机制

doi:10.3969/j.issn.1001-2400.2014.05.002

Abstract

Abstract:

Anonymity can protect the privacy of the user. Based on the bilinear pairing, an efficient identity-based privacy-preserving multi-receiver key encapsulation mechanism is presented to protect the identities of the users who are able to access protected contents. This proposed scheme uses the one-way anonymous key agreement protocol and Hash function to generate the temporary key. In the random oracle model, we formally prove that the proposed scheme is confidential and anonymous under selective ID and chosen ciphertext attack. Besides, it has a higher efficiency and a shorter ciphertext.

Key words: key encapsulation, hybrid encryption, privacy protection, random oracle

FU Xiaotong;XUE Peng. Identity-based privacy-preserving multi-receiver key encapsulation[J].J4, 2014, 41(5): 7-12.

References

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Identity-based privacy-preserving multi-receiver key encapsulation

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