可证安全的IDPKC-to-CLPKC异构签密方案

张玉磊; 张灵刚; 王彩芬; 马彦丽; 张永洁

doi:10.11999/JEIT170062

可证安全的IDPKC-to-CLPKC异构签密方案

doi: 10.11999/JEIT170062

1.
(西北师范大学计算机科学与工程学院兰州 730070) ②(甘肃卫生职业学院兰州 730000)

基金项目:

国家自然科学基金(61163038,61262056), 甘肃省高等学校科研项目(2015B-220,2013A-014)

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- 被引次数: 0
出版历程
- 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: 为了保证异构网络中消息的机密性和认证性，该文定义了身份公钥密码IDPKC到无证书公钥密码CLPKC异构签密模型，并提出具体的IDPKC-to-CLPKC异构签密方案。方案中双方密码系统参数相互独立，能够满足实际应用需求。在随机预言模型下，基于GBDH, CDH和q-SDH困难假设，证明方案满足IDPKC-to-CLPKC异构签密的机密性和不可伪造性。同时，该方案满足匿名性，通过密文无法判断发送方和接收方的身份，可以有效保护双方的身份隐私。
- 异构签密 /
- 匿名性 /
- 无证书公钥密码 /
- 身份公钥密码
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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参考文献(20)

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