An Optimal Curve Parameters for BLS12 Elliptic Curve Pairing and Its Efficiency Evaluation

Hattori, Daichi; Takahashi, Yuichiro; Tatara, Tomoya; Nanjo, Yuki; Kusaka, Takuya; Nogami, Yasuyuki

doi:10.1109/icce-tw52618.2021.9602941

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Cited by 4 publications

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Performance Analysis of ELiPS-Based CP-ABE with Optimized Decryption Functions

Anh,

Kawada,

Huda

et al. 2024

Smart Innovation, Systems and Technologies

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Performance Analysis of ELiPS-Based CP-ABE with Optimized Decryption Functions

Anh,

Kawada,

Huda

et al. 2024

Smart Innovation, Systems and Technologies

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An implementation of ELiPS-based Ciphertext-Policy Attribute-Based Encryption

Anh,

Kawada,

Huda

et al. 2023

2023 Eleventh International Symposium on Computing and Networking Workshops (CANDARW)

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A Minimization Number of Final Exponentiations and Inversions for Reducing the Decryption Process Time in ELiPS-Based CP-ABE

Anh,

Kawada,

Huda

et al. 2024

JAIT

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Ciphertext-Policy Attribute-Based Encryption (CP-ABE) is an advanced encryption method used across various fields, including cloud storage, Personal Health Records, Internet of Things, Internet of Vehicles, and blockchain. However, challenges such as insufficient security levels and performance issues in modern applications pose significant drawbacks inherent to the CP-ABE scheme. Previously, we studied Efficient Library for Pairing Systems (ELiPS)-Based CP-ABE to enhance performance and strengthen security level. This approach involved adopting ELiPS as an efficient library for pairing systems. This study increased the security level up to 128 bits and reduced the computation cost, excluding the decryption process. The decryption part primarily utilizes inversion in the Lagrange coefficient part and pairing, which includes the Miller loop and final exponentiation. Both the final exponentiation and inversion are equivalent to the number of attributes. In this paper, we further explore reducing the decryption process time by minimizing the number of final exponentiations and inversions. The effectiveness of the proposal is confirmed through security and experimental analyses where the decryption time in the proposed scheme decreased by an average of 45.45% compared to previous work.

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An Optimal Curve Parameters for BLS12 Elliptic Curve Pairing and Its Efficiency Evaluation

Cited by 4 publications

References 6 publications

Performance Analysis of ELiPS-Based CP-ABE with Optimized Decryption Functions

Performance Analysis of ELiPS-Based CP-ABE with Optimized Decryption Functions

An implementation of ELiPS-based Ciphertext-Policy Attribute-Based Encryption

A Minimization Number of Final Exponentiations and Inversions for Reducing the Decryption Process Time in ELiPS-Based CP-ABE

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