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IEEE/CIC International Conference on Communications in China (ICCC)

Position-based proxy signcryption

Qingshui Xue, Fengying Li, Guojian Ge, Jiachen Shen, Zhenfu Cao

Published Nov 1, 2015• 1 citation
Publisher

Abstract

Position-based cryptography has attracted lots of researchers' attentions. In mobile Internet, there are lots of position based security applications. For the first time, one new conception, position-based proxy signcryption is proposed. Based on a secure positioning protocol, one model of position-based proxy signcryption is proposed. In the model, positioning protocol is tightly bound to proxy signcryption, not loosely. Further, we propose one concrete position-based proxy signcryption scheme, its correctness is proved, and its security is also analyzed. As far as we know, it is the first position-based proxy signcryption scheme.

DOI
10.1109/iccchina.2015.7448606

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Position-based cryptography has attracted lots of researchers' attentions. In mobile Internet, there are lots of position based security applications. For the first time, one new conception, position-based proxy signcryption is proposed. Based on a secure positioning protocol, one model of position-based proxy signcryption is proposed. In the model, positioning protocol is tightly bound to proxy signcryption, not loosely. Further, we propose one concrete position-based proxy signcryption scheme, its correctness is proved, and its security is also analyzed. As far as we know, it is the first position-based proxy signcryption scheme.
Position-based cryptography has attracted lots of researchers' attention. In the mobile Internet, there are many position-based security applications. For the first time, one new conception-proxy multi-signature binding positioning protocols, is proposed. Based on one secure positioning protocol, one model of the proxy multi-signature binding positioning protocols is proposed. In the model, positioning protocols are bound to proxy multi-signature tightly, not loosely. Further, we propose one scheme of proxy multi-signature binding positioning protocols. As far as we know, it is the first scheme of proxy multi-signature binding positioning protocols.
Position-based cryptography has attracted lots of researchers’ attention. In the mobile Internet, there are lots of position-based security applications. For the first time, one new conception, positioning-protocol-based symmetric cryptography is proposed. Based on one secure positioning protocol, one symmetric model is proposed. In the model, positioning protocols are bound to symmetric cryptography tightly, not loosely. Moreover, we propose one concrete positioning-protocol-based symmetric scheme, its correctness is proved. To our best knowledge, it is the first positioning-protocol-based symmetric scheme.
For the first time, one new conception, multi-proxy multi-signature binding positioning protocol, is proposed. Based on the secure positioning protocol, one model of multi-proxy multi-signature binding positioning protocol is proposed. In the model, positioning protocol is bound to multi-proxy multi-signature tightly, not loosely. Further, we propose one scheme of multi-proxy multi-signature binding positioning protocol, its correctness is proved, and its security is analyzed. Copyright © 2016 John Wiley & Sons, Ltd.
Proxy-signcryption is a variation of an ordinary signcryption scheme and has been used in many applications where the delegation of rights is quite common. In a proxy-signcryption scheme, an original signcrypter needs to delegate his signcryption capability to a proxy signcrypter to signcrypt messages on behalf of the original signcrypter. By combining the functionalities of proxy signature with identity-based signcryption, in this paper, we propose a novel identity-based proxy-signcryption scheme (IBPSC) from lattice assumptions in the random oracle model. Meanwhile, the security requirements of our IBPSC scheme have been analysed, and our scheme can even resist quantum computer attacks. Compared with existing IBPSC schemes, our scheme is more secure and more efficient. To the best of our knowledge, there is still no relevant IBPSC scheme based on lattice, which is an interesting stepping stone in the post-quantum cryptographic communication.
Proxy signcryption means that the proxy signcrypter obtains the delegate authorization from the original signcrypter and then signcrypts the specified message on behalf of the original signcrypter. In this paper, we construct an identity-based proxy signcryption protocol (IBPSP) based on the universally composable (UC) framework. In the random oracle model, we prove that this protocol has the semantic security under the gap bilinear Diffie-Hellman and computational Diffie-Hellman assumptions. At the same time, an ideal functionality of the identity-based proxy signcryption protocol is defined in the UC security framework, and we also prove the equivalence between the universally composable identity-based proxy signcryption protocol and its IND-CCA2 and UF-CMA security. Analysis shows this IBPSP has both low computation complexity and semantic security together with UC security.