Design and Analysis of Hybrid Signcryption Scheme with Full Insider Security

LIAO Yucheng; WANG Libin; HUANG Jiebin

doi:10.6054/j.jscnun.2022093

Journal of South China Normal University (Natural Science Edition) > 2022 > 54(6): 119-127. > DOI: 10.6054/j.jscnun.2022093

LIAO Yucheng, WANG Libin, HUANG Jiebin. Design and Analysis of Hybrid Signcryption Scheme with Full Insider Security[J]. Journal of South China Normal University (Natural Science Edition), 2022, 54(6): 119-127. DOI: 10.6054/j.jscnun.2022093

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Design and Analysis of Hybrid Signcryption Scheme with Full Insider Security

School of Computer, South China Normal University, Guangzhou 510631, China

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Received Date: November 23, 2021
Available Online: February 13, 2023

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Abstract

Currently, it is of significant importance to design a hybrid signcryption scheme (HSC) with full insider security, and one of the crucial methods is to implement an efficient and secure signcryption key encapsulation mechanism (SC-KEM). To this goal, a new generic construction scheme (HSC_std) of secure signcryption tag key encapsulation mechanism (SC-tag-KEM) is proposed, which signing a tag together with the encapsulation of key, and using message authentication code binding of the signature and the ephemeral key to achieve DM-IND-iCCA security and DM-SUF-iCMA security under the standard model, thus the foundation for full insider security is established. Furthermore, combined with the passive-secure symmetric encryption scheme, a new generic construction (HSC_std) of hybrid signcryption scheme achieving the full insider security is presented. It is analysed to achieve DM-CCA2 security and SUF-CMA security under the standard model, thus achieving the full insider security.
- hybrid signcryption scheme,
- full insider security,
- provable security

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