一種可證安全的PKI和IBC雙向匿名異構(gòu)簽密方案的改進(jìn)

曹素珍; 郎曉麗; 劉祥震; 張玉磊; 王彩芬

doi:10.11999/JEIT180982

一種可證安全的PKI和IBC雙向匿名異構(gòu)簽密方案的改進(jìn)

doi: 10.11999/JEIT180982

西北師范大學(xué)計(jì)算機(jī)科學(xué)與工程學(xué)院蘭州 730070

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61163038, 61262056, 61262057)，甘肅省高等學(xué)?？蒲许?xiàng)目(2017A-003, 2018A-207)

詳細(xì)信息

作者簡(jiǎn)介:
曹素珍：女，1976年生，副教授，研究方向?yàn)楣 €密碼學(xué)和軟件安全

郎曉麗：女，1993年生，碩士生，研究方向?yàn)槊艽a學(xué)與信息安全

劉祥震：男，1991年生，碩士生，研究方向?yàn)槊艽a學(xué)與信息安全

張玉磊：男，1979年生，博士，副教授，研究方向?yàn)槊艽a學(xué)和信息安全

王彩芬：女，1963年生，博士，教授，研究方向?yàn)槊艽a學(xué)和信息安全

通訊作者:
張玉磊　zhangyl@nwnu.edu.cn

中圖分類(lèi)號(hào): TP309
計(jì)量
- 文章訪問(wèn)數(shù): 1970
- HTML全文瀏覽量: 934
- PDF下載量: 74
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2018-10-19
- 修回日期: 2019-03-12
- 網(wǎng)絡(luò)出版日期: 2019-04-13
- 刊出日期: 2019-08-01

Improvement of a Provably Secure Mutual and Anonymous Heterogeneous Signcryption Scheme Between PKI and IBC

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

Funds: The National Natural Science Foundation of China (61163038, 61262056, 61262057), The Higher Educational Scientific Research Foundation of Gansu Province (2017A-003, 2018A-207)

摘要

摘要: 異構(gòu)簽密可以保證異構(gòu)密碼系統(tǒng)之間數(shù)據(jù)的機(jī)密性和不可偽造性。該文分析了一個(gè)傳統(tǒng)公鑰密碼(PKI)和身份密碼(IBC)之間的PKI→IBC和IBC→PKI雙向匿名異構(gòu)簽密方案的安全性，指出PKI→IBC方案和IBC→PKI方案均不能抵擋敵手攻擊，敵手在獲取密文前提下均可解密密文。為了增強(qiáng)安全性，該文提出一個(gè)改進(jìn)的PKI→IBC和IBC→PKI方案，并在隨機(jī)預(yù)言模型下基于計(jì)算性Diffie-Hellman困難問(wèn)題和雙線性Diffie-Hellman困難問(wèn)題證明新方案滿(mǎn)足機(jī)密性與不可偽造性。同時(shí)效率分析表明，所提方案具有更高的通信效率。
- 異構(gòu)簽密 /
- 選擇密文攻擊 /
- 機(jī)密性 /
- 不可偽造性
Abstract: Heterogeneous signcryption can ensure the confidentiality and unforgeability of information data between different cryptosystems systems. Security for the traditional Public Key Infrastructure (PKI) and Identity-Based Cryptosystem (IBC) two-way and anonymous heterogeneous signcryption scheme between PKI→IBC and IBC→PKI is analyzed. It is pointed out that PKI→IBC scheme and IBC→PKI scheme can not resist adversary attacks. The ciphertext can be decrypted under the adversary obtaining the ciphertext. To enhance security, a new PKI→IBC and IBC→PKI scheme is proposed, and then confidentiality and unforgeability of the scheme in the random oracle model on the basis of the assumptions of Computational Diffie-Hellman problem and Bilinear Diffie-Hellman problem is proved. The efficiency analysis shows that the new scheme has higher communication efficiency.
- Heterogeneous signcryption /
- Chosen ciphertext attack /
- Confidentiality /
- Unforgeability

HTML全文

圖 1 PKI→IBC簽密時(shí)間

下載: 全尺寸圖片幻燈片

圖 2 PKI→IBC解簽密時(shí)間

下載: 全尺寸圖片幻燈片

圖 3 IBC→PKI簽密時(shí)間

下載: 全尺寸圖片幻燈片

圖 4 IBC→PKI解簽密時(shí)間

下載: 全尺寸圖片幻燈片

表 1 PKI→IBC異構(gòu)簽密性能比較

方案	通信方向	簽密	解簽密	總運(yùn)算量	機(jī)密性	不可偽造性
文獻(xiàn)[14]	PKI→IBC	1E	3P	1E+3P	√	√
文獻(xiàn)[15]	PKI→IBC	1E	3P	1E+3P	√	√
文獻(xiàn)[16]	PKI→IBC	1E+1P	3P	1E+4P	×	×
文獻(xiàn)[16]	IBC→PKI	1E+1P	1E+3P	2E+4P	×	√
本文方案	PKI→IBC	1E+1P	1P	1E+2P	√	√
本文方案	IBC→PKI	0	2P	2P	√	√

下載: 導(dǎo)出CSV

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