可实现固定用户安全访问移动终端外包数据的非对称代理重加密系统

doi:10.11959/j.issn.2096-109x.2016.00099

Chinese Journal of Network and Information Security ›› 2016, Vol. 2 ›› Issue (9): 49-56.doi: 10.11959/j.issn.2096-109x.2016.00099

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Asymmetric proxy re-encryption system achievable for office user to securely sharing outsourcing data of mobile terminal

Wei HAO^1,²,Xu-an WANG^1,²,Xiao-yuan YANG^1,²(),Li-qiang WU^1,²

¹ Electronic Department Engineering,College of Chinese People's Armed Police,Xi'an 710086,China
² Key Laboratory of Network ＆ Information Security Engineering,College of Chinese People's Armed Police,Xi'an 710086,China

Revised:2016-09-03 Online:2016-09-15 Published:2020-03-26
Supported by:
The National Natural Science Foundation of China(61272492);The National Natural Science Foundation of China(61572521);The Natural Science Foundation of Shaanxi Province(2014JM8300);The Basic Research Program of Engineering University of Chinese People's Armed Police(WJY201422);The Basic Research Program of Engineering University of Chinese People's Armed Police(WJY201523)

Abstract

Abstract:

In order to realize the office users securely share encrypted data of the mobile terminal,an asymmetric cross-cryptosystem proxy re-encryption system is proposed.In this system,mobile terminals who have the limited computing power use relatively simple identity-based encryption system,while the server and office users use more complex identity-based broadcast encryption system.This system is based on the ciphertext conversion mechanism,which enables the simple IBE ciphertext of mobile terminal to be converted into the complex IBBE ciphertext by proxy while the proxy know nothing of the plaintext.The security of this scheme can be reduced to the safety of the IBE and IBBE scheme.Theoretical and experimental analysis indicate that the scheme is useful for the mobile ter-minal to consume less resources to make the fixed users share the data encrypted by mobile terminal,and it is more practical.

Key words: proxy re-encryption, identity-based encryption, identity-based broadcast encryption, securely sharing

CLC Number:

TP309

Wei HAO,Xu-an WANG,Xiao-yuan YANG,Li-qiang WU. Asymmetric proxy re-encryption system achievable for office user to securely sharing outsourcing data of mobile terminal[J]. Chinese Journal of Network and Information Security, 2016, 2(9): 49-56.

Figures/Tables 5

操作	功耗
系统初始化	$(m + 1) t_{e} + t_{p}$
用户注册	$t_{e}$
共享文件产生	$3 t_{e}$
重加密密钥产生	$(n + 3) t_{e}$
代理重加密	$t_{e} + t_{p}$
原始共享文件解密	$t_{e} + t_{p}$
转换后的共享文件解密	$n t_{e} + 3 t_{p}$

References 12

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[6]	HWU J S , CHEN R J , LIN Y B . An efficient identity-based crypto-system for end-to-end mobile security[J]. IEEE Transactions on Wireless Communications, 2006,5(9):2586-2593.
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[8]	ATENIESE G , FU K , GREEN M , et al. Improved proxy re-encryption schemes with applications to secure distributed stor-age[J]. ACM Transactions on Information and System Security(TISSEC), 2006,9(1):1-30.
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[12]	[EB/OL]..

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方案	公钥长度	私钥长度	原始密文长度	重加密密钥长度	转换后密文长度	解密中的配对运算	非交互	跨加密系统
文献[9]	3	2	3	5	5	3	√	×
文献[10]	PKE:3IBE:4	PKE:3IBE:2	4	3	3	2	×	√
APRE	IBE:4IBBE:m+3	IBE:1IBBE:1	2	4	5	3	√	√

Asymmetric proxy re-encryption system achievable for office user to securely sharing outsourcing data of mobile terminal

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