Apparatus and method for generating quantum circuit for ARIA substitution layer

An apparatus for generating a quantum circuit for an ARIA substitution layer, comprising:

• one or more processors;
• and
• memory for storing at least one program executed by the one or more processors,
• wherein the at least one program
• configures a multiplicative inverse operation quantum circuit by arranging a preconfigured multiplicative inverse operation quantum circuit,
• configures four types of S-box operation quantum circuits, including S1 and S2 operation quantum circuits, which perform two substitution operations used in ARIA by arranging a quantum circuit for performing affine transform and a quantum circuit for addition of a constant value in the multiplicative inverse operation quantum circuit, and
• S
• 1
• -
• 1
• ⁢
• and
• ⁢
• S
• 2
• -
• 1
• operation quantum circuits, which perform inverse substitution operations, and
• constructs an ARIA algorithm as a quantum circuit by rearranging the four types of S-box operation quantum circuits for two substation layers.