改进的Medium-Field多变量公钥加密方案

Improved Medium-Field Multivariate Public Key Encryption Scheme

  • 摘要: 提出了一种改进的MFE多变量公钥加密方案。能够抵御高阶线性化方程攻击。给出了该改进方案在秩攻击和XL&Gröbner基算法攻击下的计算复杂度。通过分析可知,只要参数选择恰当,该改进方案也能够抵御秩攻击和XL&Gröbner基算法攻击。因此,该改进方案是一种安全的多变量公钥加密方案。

     

    Abstract: In this paper, we design an improved MFE multivariate public key encryption scheme, which can resist the HOLE attack. There are other two attacks on MPKCs, the Rank attack and XL the & Gröbner basis attack. We provide the computational complexity under the Rank attack and XL&Gröbner basis attack. Through analysis, if we choose proper values of parameters, this improved scheme can resist both the Rand attack and the XL&Gröbner basis attack. Thus, this improved scheme is a secure multivariate public key encryption scheme.

     

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