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A Lightweight Decentralized Medical Data Sharing Scheme with Dual Verification.

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Název: A Lightweight Decentralized Medical Data Sharing Scheme with Dual Verification.
Autoři: Zhang, Shaobo, Yin, Yijie, Chen, Nangui, Ning, Honghui
Zdroj: Cryptography (2410-387X); Dec2025, Vol. 9 Issue 4, p69, 23p
Témata: ELLIPTIC curve cryptography, DATA integrity, HEALTH information exchanges, DATA encryption, DIGITAL health, MULTI-factor authentication, PRIVACY
Abstrakt: The rapid growth of smart healthcare improves medical efficiency through electronic data sharing but introduces security risks like privacy leaks and data tampering. However, existing ciphertext-policy attribute-based encryption faces challenges such as single points of failure, weak authentication, and inadequate integrity protection, hindering secure, efficient medical data sharing. Therefore, we propose LDDV, a lightweight decentralized medical data sharing scheme with dual verification. LDDV constructs a lightweight multi-authority collaborative key management architecture based on elliptic curve cryptography, which eliminates the risk of single point of failure and balances reliability and efficiency. Meanwhile, a lightweight dual verification mechanism based on elliptic curve digital signature provides identity authentication and data integrity verification. Security analysis and experimental results show that LDDV achieves 28–42% faster decryption speeds compared to existing schemes and resists specific threats such as chosen plaintext attacks. [ABSTRACT FROM AUTHOR]
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Databáze: Complementary Index
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Abstrakt:The rapid growth of smart healthcare improves medical efficiency through electronic data sharing but introduces security risks like privacy leaks and data tampering. However, existing ciphertext-policy attribute-based encryption faces challenges such as single points of failure, weak authentication, and inadequate integrity protection, hindering secure, efficient medical data sharing. Therefore, we propose LDDV, a lightweight decentralized medical data sharing scheme with dual verification. LDDV constructs a lightweight multi-authority collaborative key management architecture based on elliptic curve cryptography, which eliminates the risk of single point of failure and balances reliability and efficiency. Meanwhile, a lightweight dual verification mechanism based on elliptic curve digital signature provides identity authentication and data integrity verification. Security analysis and experimental results show that LDDV achieves 28–42% faster decryption speeds compared to existing schemes and resists specific threats such as chosen plaintext attacks. [ABSTRACT FROM AUTHOR]
ISSN:2410387X
DOI:10.3390/cryptography9040069