Efficient attribute-based searchable encryption with forward security in cloud computing

doi:10.1016/j.comnet.2026.112758

Efficient attribute-based searchable encryption with forward security in cloud computing

2026-09-17

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DOI：10.1016/j.comnet.2026.112758

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• Propose FS-ABSE, the first attribute-based searchable encryption scheme that simultaneously supports forward security, multi-keyword search, and access policy hiding for cloud data sharing. • Integrate puncturable encryption to enable local key updates without third-party interaction or costly data re-encryption, ensuring forward security against key exposure. • Achieve efficient multi-keyword search with minimal computational overhead, requiring only two pairing operations per search query, scalable to complex queries. • Design privacy-preserving access policies embedded as encrypted AND gates over multi-valued attributes, preventing policy leakage to unauthorized entities. • Employ aggregation techniques to maintain constant-size ciphertexts and secret keys regardless of the number of attributes, guaranteeing scalable and efficient decryption.

Keywords:

Attribute-based searchable encryption

Puncturable encryption

Forward security

Multi-keyword search

Policy hiding

Efficient attribute-based searchable encryption with forward security in cloud computing

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