Provably secure and efficient escrowable public key encryption schemes

In an escrowable public key encryption (E-PKE) scheme, there are two keys associated with one public key. It can reduce the total number of certificates in the public key infrastructure (PKI) to a large extent, thus degrade the com-plexity of certificate management. Moreover, an E-PKE scheme can als...

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Bibliographic Details
Main Authors: Wen-hao LIU, Sheng-bao WANG, Zhen-fu CAO, Li-dong HAN
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2014-07-01
Series:Tongxin xuebao
Subjects:
Online Access:http://www.joconline.com.cn/zh/article/doi/doi:10.3969/j.issn.1000-436x.2014.07.004/
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Summary:In an escrowable public key encryption (E-PKE) scheme, there are two keys associated with one public key. It can reduce the total number of certificates in the public key infrastructure (PKI) to a large extent, thus degrade the com-plexity of certificate management. Moreover, an E-PKE scheme can also reduce the key storage for end users. Two such schemes were proposed, with the second one being the most efficient one among all existing E-PKE schemes. It is also the first provably secure E-PKE scheme, whose security is based on the standard bilinear Diffie-Hellman (BDH) assump-tion.
ISSN:1000-436X