Shoko Imaizumi, Masaaki Fujiyoshi, and Hitoshi Kiya,
“A Key Generating Method Using Recursive Hash Chains and Its Applications for Multi-Dimensionally Hierarchical Access Control,”
ITE Journal, vol.65, no.2, pp.193-202, February 2011. (in Japanese)
Best Paper Award of ITE Niwa-Takayanagi Prize