Ki-Hwan Kim; Su-Hyun Kim; Im-Yeong Lee. A STUDY ON SECURE PRIVATE SET UNION SCHEME IN IOT ENVIRONMENT: Received: 10th June 2025, Revised: 20th June 2025, 10th July 2025, Accepted: 2nd September 2025, Date of Publication: 19th September 2025. mijst 2025, 11, 43-54.