可證安全的IDPKC-to-CLPKC異構(gòu)簽密方案

張玉磊; 張靈剛; 王彩芬; 馬彥麗; 張永潔

doi:10.11999/JEIT170062

可證安全的IDPKC-to-CLPKC異構(gòu)簽密方案

doi: 10.11999/JEIT170062

1.
(西北師范大學(xué)計(jì)算機(jī)科學(xué)與工程學(xué)院蘭州 730070) ②(甘肅衛(wèi)生職業(yè)學(xué)院蘭州 730000)

基金項(xiàng)目:

國家自然科學(xué)基金(61163038,61262056), 甘肅省高等學(xué)?？蒲许?xiàng)目(2015B-220,2013A-014)

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- 文章訪問數(shù): 1264
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出版歷程
- 收稿日期: 2017-01-18
- 修回日期: 2017-04-13
- 刊出日期: 2017-09-19

Provable Secure IDPKC-to-CLPKC Heterogeneous Signcryption Scheme

1.
(College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China)
2.
(Gansu Health Vocational College, Lanzhou 730000, China)

Funds:

The National Natural Science Foundation of China (61163038, 61262056), The Higher Educational Scientific Research Foundation of Gansu Province (2015B-220, 2013A-014)

摘要

摘要: 為了保證異構(gòu)網(wǎng)絡(luò)中消息的機(jī)密性和認(rèn)證性，該文定義了身份公鑰密碼IDPKC到無證書公鑰密碼CLPKC異構(gòu)簽密模型，并提出具體的IDPKC-to-CLPKC異構(gòu)簽密方案。方案中雙方密碼系統(tǒng)參數(shù)相互獨(dú)立，能夠滿足實(shí)際應(yīng)用需求。在隨機(jī)預(yù)言模型下，基于GBDH, CDH和q-SDH困難假設(shè)，證明方案滿足IDPKC-to-CLPKC異構(gòu)簽密的機(jī)密性和不可偽造性。同時(shí)，該方案滿足匿名性，通過密文無法判斷發(fā)送方和接收方的身份，可以有效保護(hù)雙方的身份隱私。
- 異構(gòu)簽密 /
- 匿名性 /
- 無證書公鑰密碼 /
- 身份公鑰密碼
Abstract: In order to ensure the confidentiality and authentication in different network environments, the security model of IDPKC-to-CLPKC heterogeneous signcryption is defined from IDentity-based Public Key Cryptography (IDPKC) to CertificateLess Public Key Cryptography (CLPKC), and a concrete IDPKC-to-CLPKC heterogeneous signcryption scheme is presented. The system parameters in IDPKC and CLPKC are independent on each other in the scheme, which can meet the practical requirements. Based on the assumptions of Gap Bilinear Diffie-Hellman (GBDH), Computational Diffie-Hellman (CDH) and q-Strong Diffie-Hellman (q-SDH), the scheme is proved to satisfy the confidentiality and unforgeability in the random oracle model. Moreover, the scheme is also proved to satisfy the properties of ciphertext anonymity, which means the attacker can not judge the identities of the sender and the receiver. Therefore, the scheme can effectively protect the privacy of both identities.
- Heterogeneous signcryption /
- Anonymity /
- CertificateLess Public Key Cryptography (CLPKC) /
- IDentity-based Public Key Cryptography (IDPKC)

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參考文獻(xiàn)(20)

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