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A Multivariate Public Key Encryption Scheme With Equality Test
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DOI：10.1109/ACCESS.2020.2988732.png)
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Abstract
En 中文
The public key encryption with equality test (PKEET) allows the cloud server to judge whether two different ciphertexts are generated by the same message without decryption. Through this technique, PKEET provides an effective solution for building secure outsourced databases, and has made some rich achievements. This paper combines multivariate public key encryption and equality test, and proposes the first multivariate public key encryption scheme with equality test (MPKEET), which inherits the advantages of both primitives. Moreover, the equality test algorithm proposed in this paper is based on a straight line. Compared with the schemes based on bilinear pairing, it is simpler and easier to implement. And our MPKEET scheme achieves desirable security, which can resist linearization equation attacks, differential attacks, XL attacks, Grobner basis attacks and the attack of quantum computer, when appropriate parameters are selected.
Keywords:
Encryption
Public key
Authorization
Resists
Quantum computing
Equality test
multivariate
public key encryption
security
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