INFORMATION PROTECTION METHOD Russian patent published in 2018 - IPC G06F21/60 

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering. Method comprises the steps of: specifying a finite set of characters Y={γ₁, γ₂, …, γ_m}, where m≥3, the elements of which form the control sequence {y_i}, having a length at least the length of the original sequence of characters {c_i}; specify a finite set of symbols E={e₁, e₂, …, e_k}, k≥n, which is an alphabet for the sequence of characters {s_i}, form the transformation matrix B=||b_ij|| size k×m, each column of which consists of elements of the set E, chosen in an arbitrary order, each element of the set E occurs only once in a fixed column; the correspondence G_A between the alphabet A and the row numbers of the matrix B in such a way that each symbol of the alphabet A is associated with at least one element of the set of rows of the matrix B, with each row of the matrix B there corresponds only one symbol of the alphabet A, establish a one-to-one correspondence G_Y between the set Y and the column numbers of the matrix B; matrix ||b_ij||, the control sequence {y_i}, the correspondence G_A and G_Y are introduced into a technical facility, on which the original sequence of characters {c_i} in the sequence of characters {s_i}.

EFFECT: technical result is to increase the reliability of the protection of transmitted information.

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