- 期刊
Multi-bit Functional Encryption for Inner Product Predicate over Lattice
摘要
In cloud computing, lattice-based function encryption (FE) enables fine-grained access control and resists quantum attacks. However, most proposed predicate encryption (PE) schemes are based on number theoretic problems and cannot resist quantum attacks. In addition, most existing schemes over lattice are the single bit that the efficiency is low. Therefore, an efficient multi-bit inner product predicate (IPE) encryption scheme is proposed. In this paper, a plaintext matrix can be encrypted, greatly extending the plaintext space. Moreover, our scheme's security is based on learning with errors (LWE) problems and can resist quantum attacks.
延伸閱讀
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