Registered FE beyond predicates:(attribute-based) linear functions and more

P Datta, T Pal, S Yamada - International Conference on the Theory and …, 2025 - Springer
This paper introduces the first registered functional encryption RFE scheme tailored for
linear functions. Distinctly different from classical functional encryption (FE), RFE addresses …

SACfe: Secure Access Control in Functional Encryption with Unbounded Data

U Dowerah, S Dutta, F Hartmann… - 2024 IEEE 9th …, 2024 - ieeexplore.ieee.org
Privacy is a major concern in large-scale digital applications, such as cloud-computing,
machine learning services, and access control. Users want to protect not only their plain …

Unbounded predicate inner product functional encryption from pairings

U Dowerah, S Dutta, A Mitrokotsa, S Mukherjee… - Journal of …, 2023 - Springer
Predicate inner product functional encryption (P-IPFE) is essentially attribute-based IPFE
(AB-IPFE) which additionally hides attributes associated to ciphertexts. In a P-IPFE, a …

Lower bounds for lattice-based compact functional encryption

E Tairi, A Ünal - Annual International Conference on the Theory and …, 2024 - Springer
Functional encryption (FE) is a primitive where the holder of a master secret key can control
which functions a user can evaluate on encrypted data. It is a powerful primitive that even …

抗泄漏CCA 安全的内积功能加密

韩帅, 刘胜利, 谷大武 - Journal of Cryptologic Research, 2023 - search.proquest.com
内积功能加密(IPFE) 是一类重要的功能加密方案, 其使用功能密钥对密文进行解密时可以恢复出
明文消息的内积值, 在生物特征认证, 近邻搜索和统计分析等场景有很多应用 …

SPADE: Digging into Selective and PArtial DEcryption using Functional Encryption

C Nuoskala, H Abdinasibfar, A Michalas - Cryptology ePrint Archive, 2024 - eprint.iacr.org
Functional Encryption (FE) is a cryptographic technique established to guarantee data
privacy while allowing the retrieval of specific results from the data. While traditional …

MultiReg-FE: Registered FE for Unbounded Inner-Product and Attribute-Weighted Sums

Q Du, Q Chu, J Chen, MH Au, D He - Cryptology ePrint Archive, 2024 - eprint.iacr.org
Abstract Recently, Francati et al.(Asiacrypt 2023) provided the first registered functional
encryption (Reg-FE) beyond predicates. Reg-FE addresses the key escrow problem in …

Trace-and-Revoke Quadratic Functional Encryption

Q Zheng, J Zhao - International Conference on Information Security, 2023 - Springer
This work investigates trace-and-revoke system in the context of functional encryption (FE)
for quadratic functions. Trace-and-revoke system allows a content distributor to identify …