POSTER: Page Table Manipulation Attack. - JungSeung Lee; HyoungMin Ham; InHwan Kim; JooSeok Song (CCS, 2015)

An efficient offline grouping proof protocol using multiple types of tags. - HyoungMin Ham; InHwan Kim; JooSeok Song (IMCOM, 2015)

Improved yoking proof protocols for preserving anonymity. - HyoungMin Ham; JongHyup Lee; JooSeok Song (Int. J. Inf. Sec., 2018)