{"id":20,"date":"2017-03-03T16:55:03","date_gmt":"2017-03-03T07:55:03","guid":{"rendered":"http:\/\/www.iec.hiroshima-u.ac.jp\/wp-test\/?page_id=20"},"modified":"2022-09-19T21:09:00","modified_gmt":"2022-09-19T12:09:00","slug":"research","status":"publish","type":"page","link":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/research\/","title":{"rendered":"Research Topics"},"content":{"rendered":"<h4><\/p>\n<p><span style=\"font-size: 18pt;\">The Foundation of Computer Science Laboratory is one of the laboratories belonging to the Information Science Program of the Department of Advanced Science and Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, and is currently conducting the following research.<\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-660\" src=\"http:\/\/www.iec.hiroshima-u.ac.jp\/private\/wp-content\/uploads\/2022\/09\/research_topic_en.png\" alt=\"\" width=\"4368\" height=\"6893\" srcset=\"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/wp-content\/uploads\/2022\/09\/research_topic_en.png 4368w, https:\/\/www.iec.hiroshima-u.ac.jp\/private\/wp-content\/uploads\/2022\/09\/research_topic_en-190x300.png 190w, https:\/\/www.iec.hiroshima-u.ac.jp\/private\/wp-content\/uploads\/2022\/09\/research_topic_en-649x1024.png 649w, https:\/\/www.iec.hiroshima-u.ac.jp\/private\/wp-content\/uploads\/2022\/09\/research_topic_en-768x1212.png 768w, https:\/\/www.iec.hiroshima-u.ac.jp\/private\/wp-content\/uploads\/2022\/09\/research_topic_en-973x1536.png 973w, https:\/\/www.iec.hiroshima-u.ac.jp\/private\/wp-content\/uploads\/2022\/09\/research_topic_en-1298x2048.png 1298w\" sizes=\"(max-width: 4368px) 100vw, 4368px\" \/><\/p>\n<p><!--\n\n\n<h1>1. Research of cryptographic techniques<\/h1>\n\n\nCryptographic techniques are used as the information security techniques to realize the secure network society. Encryptions can hide data, and authentications allow us to check that the sender is a correct user or server. In this laboratory, we are researching cryptographic techniques with more functions to protect users' privacy.\n\n\n<h1>2. Privacy-enhancing authentications<\/h1>\n\n\nIn conventional user authentications using ID\/passwords, the server can grasp user's access history by tracing the ID. In this laboratory, we are researching anonymous authentications, where the server can check that the accessing user is valid while the ID of the user is hidden.\n\n\n<h1>3. Implementations of cryptographic systems<\/h1>\n\n\nIn recently proposed cryptographic techniques with more functions, elliptic curve cryptosystems with a special computation called a pairing are used. Using the efficient library, we are implementing the cryptosystems such as the anonymous authentications.\n\n\n<h1>4. Mobile computing<\/h1>\n\n\nDelay tolerant networks are the main topic of our mobile computing research.\n\n\n<h1>5. Studies on Cellular Automata --- Their Dynamic Behaviors and Higher-Order Functions<\/h1>\n\n\nA cellular automaton is a system consisting of a large number of simple processors (called \"cells\") which are placed and connected uniformly in a space. It can be considered as a fine-grained parallel processing system or a model of physical space. We investigate here, how various higher-order functions such as universal computation, generation of patterns, synchronization of cells, self-organization, self-reproduction, etc. can be realized in a cellular space, especially in a reversible or a number-conserving space.\n\n--><\/p>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>The Foundation of Computer Science Laboratory is one of the laboratories belonging to the Information Science  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/pages\/20"}],"collection":[{"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/comments?post=20"}],"version-history":[{"count":31,"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/pages\/20\/revisions"}],"predecessor-version":[{"id":670,"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/pages\/20\/revisions\/670"}],"wp:attachment":[{"href":"https:\/\/www.iec.hiroshima-u.ac.jp\/private\/en\/wp-json\/wp\/v2\/media?parent=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}