Privacy-Enhanced Content Distribution and Charging Scheme Using Group Signature. - Takayuki Tobita; Hironori Yamamoto; Hiroshi Doi; Keigo Majima (WISA, 2006)

Aligning Security Requirements and Security Assurance Using the Common Criteria. - Kenji Taguchi 001; Nobukazu Yoshioka; Takayuki Tobita; Hiroyuki Kaneko (SSIRI, 2010)