@article{oai:chuo-u.repo.nii.ac.jp:00001275,
 author = {岡本, 龍明},
 journal = {中央大学数学教室講究録},
 month = {Mar},
 note = {application/pdf},
 title = {暗号理論における安全性概念},
 volume = {2},
 year = {2009},
 yomi = {オカモト, タツアキ}
}