Searchable Encryption Scheme for Attribute-based Consumable Management Based on Cuckoo Filters

In order to solve the problems of low retrieval efficiency and difficult index update in the traditional attribute encryption technology in the searchable encryption scheme, this paper proposes an attribute-based searchable encryption scheme based on the cuckoo filter. This paper introduces the cuckoo filter technology and has high query efficiency and low false positive rate, which can effectively improve the keyword retrieval performance. The cuckoo filter significantly reduces the query time and optimizes the memory usage by reducing the number of hash functions. In addition, the scheme in this paper adds random salt values to the keyword set, and protects the salt values through attribute encryption technology, thereby enhancing the security of ciphertext data. This design ensures that only legitimate users can obtain random salt values, and use these salt values to construct trapdoors for retrieval matching. The combination of random salt values and trapdoors not only protects the privacy of data, but also prevents unauthorized access. The results show that the proposed scheme performs well in improving retrieval efficiency, supporting dynamic index updates, and ensuring security at the same time.