On computations with Double Schubert Automaton and stable maps of Multivariate Cryptography

Publication date: 17 August 2021

Abstract: The families of bijective transformations

G_{n}

of affine space

K^{n}

over general commutative ring

K

of increasing order with the property of stability will be constructed. Stability means that maximal degree of elements of cyclic subgroup generated by the transformation of degree

d

is bounded by

d

. In the case

K = F_{q}

these transformations of

K^{n}

can be of an exponential order. We introduce large groups formed by quadratic transformations and numerical encryption algorithm protected by secure protocol of Noncommutative Cryptography. The construction of transformations is presented in terms of walks on Double Schubert Graphs.

Mathematics Subject Classification ID

Cryptography (94A60) Applications of universal algebra in computer science (08A70) Structure theory of algebraic structures (08A05) Subgroups of symmetric groups (20B35)

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