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加密郵件系統(tǒng)中基于身份的可搜索加密方案

牛淑芬,  謝亞亞,  楊平平,  王彩芬,  杜小妮

牛淑芬, 謝亞亞, 楊平平, 王彩芬, 杜小妮. 加密郵件系統(tǒng)中基于身份的可搜索加密方案[J]. 電子與信息學(xué)報, 2020, 42(7): 1803-1810. doi: 10.11999/JEIT190578
引用本文: 牛淑芬, 謝亞亞, 楊平平, 王彩芬, 杜小妮. 加密郵件系統(tǒng)中基于身份的可搜索加密方案[J]. 電子與信息學(xué)報, 2020, 42(7): 1803-1810. doi: 10.11999/JEIT190578
Shufen NIU, Yaya XIE, Pingping YANG, Caifen WANG, Xiaoni DU. Identity-based Searchable Encryption Scheme for Encrypted Email System[J]. Journal of Electronics & Information Technology, 2020, 42(7): 1803-1810. doi: 10.11999/JEIT190578
Citation: Shufen NIU, Yaya XIE, Pingping YANG, Caifen WANG, Xiaoni DU. Identity-based Searchable Encryption Scheme for Encrypted Email System[J]. Journal of Electronics & Information Technology, 2020, 42(7): 1803-1810. doi: 10.11999/JEIT190578

加密郵件系統(tǒng)中基于身份的可搜索加密方案

doi: 10.11999/JEIT190578 cstr: 32379.14.JEIT190578
  • 1.

    西北師范大學(xué)計算機科學(xué)與工程學(xué)院 蘭州 730070

  • 2.

    西北師范大學(xué)數(shù)學(xué)與統(tǒng)計學(xué)院 蘭州 730070

基金項目: 國家自然科學(xué)基金(61562077, 61662069, 61662071, 61772022)，西北師范大學(xué)青年教師科研提升計劃(NWNU-LKQN-13-12)
詳細(xì)信息
    作者簡介:

    牛淑芬：女，1976年生，博士，副教授，研究方向為云計算和大數(shù)據(jù)網(wǎng)絡(luò)的隱私保護

    謝亞亞：女，1996 年生，碩士，研究方向為網(wǎng)絡(luò)與信息安全

    楊平平：女，1995 年生，碩士，研究方向為網(wǎng)絡(luò)與信息安全

    王彩芬：女，1963 年生，博士，教授，研究方向為網(wǎng)絡(luò)安全

    杜小妮：女，1972 年生，博士，教授，研究方向為流密碼

    通訊作者:

    謝亞亞　2418606113@qq.com

  • 中圖分類號: TN918.7

Identity-based Searchable Encryption Scheme for Encrypted Email System

  • 1.

    College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China

  • 2.

    College of Computer Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, China

Funds: The National Natural Science Foundation of China (61562077, 61662069, 61662071, 61772022), The Young Teacher’s Scientific Research Ability Promotion Program of Northwest Normal University (NWNU-LKQN-13-12)
  • 摘要:

    在加密郵件系統(tǒng)中，公鑰可搜索加密技術(shù)可以有效地解決在不解密的情況下搜索加密郵件的問題。針對公鑰可搜索加密復(fù)雜的密鑰管理問題，該文在加密郵件系統(tǒng)中引入了基于身份的密碼體制。針對可搜索加密的離線關(guān)鍵字猜測攻擊問題，該文采用了在加密關(guān)鍵字和生成陷門的同時進行認(rèn)證，并且指定服務(wù)器去搜索加密電子郵件的方法。同時，在隨機預(yù)言機模型下，基于判定性雙線性Diffie-Hellman假設(shè)，證明方案滿足陷門和密文不可區(qū)分性安全。數(shù)值實驗結(jié)果表明，在陷門生成和關(guān)鍵字密文檢測階段，該方案與現(xiàn)有方案相比在計算效率上較高。

    Abstract:

    In encrypted email system, the public key searchable encryption technology can effectively solve the problem of searching for encrypted emails without decryption. In view of the complex key management problem of public key searchable encryption, an identity-based cryptosystem is introduced in the encrypted mail system. For the offline keyword guessing attack problem of searchable encryption, the method of encrypting keywords and generating trapdoors are adopted at the same time, and the server is designated to search for encrypted emails. At the same time, under the random oracle model, based on the decisional bilinear Diffie-Hellman assumption, the scheme is proved to satisfy the trapdoor and ciphertext indistinguishable security. The numerical experiments show that the scheme has higher computational efficiency than the existing schemes in the keyword trapdoor generation and keyword ciphertext test phase.

    • HTML全文

  • 圖  1  系統(tǒng)模型

    圖  2  算法運行時間比較

    表  1  常用密碼操作的計算時間[17]

    操作${T_{\rm{p}}}$${T_{\rm{e}}}$${T_{\rm{m}}}$${T_{\rm{h}}}$
    時間(ms)16.0641.8820.0130.006
    下載: 導(dǎo)出CSV

    表  2  計算量比較

    方案CwTrapdoorTest
    文獻[14]
    方案    		$3{T_{\rm{p}}} + 2{T_{\rm{h}}} + 6{T_{\rm{m}}}$${T_{\rm{p}}} + {T_{\rm{h}}} + 4{T_{\rm{m}}}$$3{T_{\rm{p}}} + 2{T_{\rm{h}}} + 2{T_{\rm{m}}} + {T_{\rm{e}}}$
    文獻[3]
    方案    		${T_{\rm{h}}} + {T_{\rm{m}}} + 3{T_{\rm{e}}}$${T_{\rm{p}}} + {T_{\rm{h}}} + {T_{\rm{e}}}$$2{T_{\rm{p}}} + {T_{\rm{m}}} + 2{T_{\rm{e}}}$
    本文方案$2{T_{\rm{p}}} + {T_{\rm{h}}} + 3{T_{\rm{e}}}$${T_{\rm{h}}} + 3{T_{\rm{m}}} + 4{T_{\rm{e}}}$$2{T_{\rm{p}}} + {T_{\rm{m}}} + 2{T_{\rm{e}}}$
    下載: 導(dǎo)出CSV

    表  3  通信量比較

    方案${\rm{S}}{{\rm{K}}_{{\rm{ID}}}}$${ {{C} }_w}$Trapdoor
    文獻[14]方案$\left| {{G_1}} \right|$$3\left| {{G_1}} \right| + \left| {{Z_{\rm{P}}}} \right|$$2\left| {{G_1}} \right| + \left| {{Z_{\rm{P}}}} \right|$
    文獻[3]方案$\left| {{Z_{\rm{P}}}} \right|$$2\left| {{G_1}} \right| + \left| h \right|$$\left| {{G_{\rm{T}}}} \right| + \left| h \right|$
    本文方案$\left| {{G_1}} \right|$$2\left| {{G_1}} \right| + \left| {{G_{\rm{T}}}} \right|$$2\left| {{G_1}} \right|$
    下載: 導(dǎo)出CSV

    表  4  對參數(shù)的主要性質(zhì)

    參數(shù)類型基域(bit)Dlog安全(bit)橢圓曲線次數(shù)
    Type - A51210242
    下載: 導(dǎo)出CSV
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出版歷程
  • 收稿日期:  2019-07-30
  • 修回日期:  2020-03-21
  • 網(wǎng)絡(luò)出版日期:  2020-04-15
  • 刊出日期:  2020-07-23

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