ELECTRONIC COMPUTING DEVICE Russian patent published in 2019 - IPC G06F7/72 G06F21/14 G09C1/00 

FIELD: physics.

SUBSTANCE: group of inventions relates to computer engineering and can be used to perform obfuscation arithmetic operations in a commutative ring. Device is configured to perform obfuscation arithmetic operations in a commutative ring () defined by a combined module (M; M (x)) in a system of residual classes, wherein system of residual classes is defined for a number of modules (m₁, m₂, ..., m_N), where each module defines commutative ring (), so that for each module (m_i) there is an associated base element (u_i), which satisfies condition, consisting in that each remainder of division of element (x_j) rings per module (m_j) can be expressed in the form of integer list ((a_j, b_j)), so that ring elements are equal to linear combination of basic element degrees ( - ), where degrees have indices defined by integer list.

EFFECT: technical result is improved security.

15 cl, 6 dwg, 1 tbl