A NOTE ON TAME POLYNOMIAL AUTOMORPHISMS AND THE SECURITY OF TTM CRYPTOSYSTEM

作者：Hrdina Jaroslav^*; Kures Miroslav; Vasik Petr

来源：Applied and Computational Mathematics, 2010, 9(2): 226-233.

• Polynomial Automorphisms
• Public Key Cryptography
• Multivariate Cryptosystems

In this paper we discuss two basic ways of TTM cryptosystem modifications. We suggest to add one more polynomial transformation into the coding process, and we discuss the properties of Frobenius automorphism as a possible tool to prevent the so-called Patarin attack. As TTM is based on polynomial automorphisms of F(2)8, we also study automorphisms over specific fields, namely certain field extensions.

• 出版日期2010