An information processing apparatus includes a memory configured to store first information of a first fingerprint image, and a processor coupled to the memory and configured to obtain second information of a second fingerprint image, generate third information of a third fingerprint image by enlarging or reducing the second fingerprint image, specify an enlargement rate or a reduction rate based on a first similarity between the second information and the first information and a second similarity between the third information and the first information, and execute a first matching process of the first information and fourth information of a fourth fingerprint image, the fourth fingerprint image being generated by enlarging or reducing the first fingerprint image by the enlargement rate or the reduction rate.