出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Portal site is not only providing search engine and e-mail service but also various servicesincluding blog, news, shopping, and others. The fact that average number of daily login forKorean portal site Naver is reaching 300 million suggests that many people are using portalsites. One of the most famous social network service, Facebook subscribers to reach 1.2 billion30 million people at the time of the February 2014. With the increase in number of usersfollowed by the diversity in types of services provided by portal sites and SNS, the attack is alsoincreasing. Therefore, the objective of this study lies in analysing whole procedure of passwordauthentication system of portal sites, SNS and analysing the security threat that may occuraccordingly. Also, the security requirement corresponding to analysed security threat wasextracted and the analysis on implementation of security requirements by portal sites and SNSwas conducted.
关键词：Password Authentication System of Web Sites; Threat of Web Sites; Security Requirement of;Web Sites; Attack Potential of Password Systems
