公开(公告)号：KR100648297B1

公开(公告)日：2006-12-20

申请号：KR1020050081145

申请日：2005-09-01

Applicant: 재단법인서울대학교산학협력재단

Inventor： 최윤호 ,  정문영 ,  서승우

IPC: H04L12/22 ,  H04L9/32

Abstract: A high-speed network invasion detecting method is provided to be capable of designing each block, which is a minimum standard comparative unit, in consideration of a characteristic of text and the frequency of generation within patterns, in constructing shift and hash tables. Shift and hash(prefix) tables are initialized. N patterns are read from a rule of a rule set file established so as to be used in an invasion detection system, and length of the shortest pattern is stored as m. ASCII(American Standard Code for Information Interchange) values for each length B block having a predetermined second position from a predetermined first position as a starting position of a block for each N pattern are calculated and stored as indexes. As windows of length B are moved to the right 1 byte by 1 byte, the frequency of generation of each length B block is counted. Strings of length m, where a predetermined block determined by the counted results exists as a final block to the second position from the first position of each pattern, are searched for each pattern, and the starting position is stored. Shift and hash(prefix) tables are configured with the searched strings of each pattern. The patterns within text are searched with the shift and hash(prefix) tables.

Abstract translation: 提供一种高速网络入侵检测方法，在构建移位表和散列表时，考虑到文本的特性和模式内的产生频率，能够设计作为最小标准比较单元的每个块。 Shift和哈希（前缀）表被初始化。 从建立的规则集文件的规则中读取N个模式以用于入侵检测系统，并且将最短模式的长度存储为m。 计算并存储每个长度B块的ASCII（美国标准信息交换码）值，该长度B块具有距预定第一位置的预定第二位置作为每个N图案的块的起始位置并作为索引存储。 当长度B的窗口向右移动1个字节乘1个字节时，计数每个长度B块的产生频率。 对于每个图案搜索长度为m的字符串，其中由计数结果确定的预定块存在作为从每个图案的第一位置到第二位置的最后一个块，并且存储起始位置。 Shift和Hash（前缀）表是使用每个模式的搜索字符串配置的。 文本内的模式使用shift和hash（前缀）表进行搜索。

公开(公告)号：KR100927280B1

公开(公告)日：2009-11-18

申请号：KR1020070071187

申请日：2007-07-16

Applicant: 재단법인서울대학교산학협력재단

Inventor： 이승호 ,  정문영 ,  박영훈 ,  서승우

IPC: G06F21/36 ,  G06F21/60 ,  G06F21/10

Abstract: A security character string disclosure preventing method by using a fake round which provides the authentication service of one time password is provided to reduce the probability about confirming a real password. A practice frequency N is initialized from a system(S10). A system increases the round practice frequency(S20). The second character string implied with the first character string consisting of a plurality of characters corresponding to each character is submitted(S30). The specification character is inputted among the second character string(S40). Passwords corresponding character string are compared system. Authentication is performed(S70).

Abstract translation: 通过使用提供一次性密码的认证服务的假轮的安全字符串公开防止方法被提供以减少确认真实密码的可能性。 练习频率N从系统初始化（S10）。 系统增加轮训练频率（S20）。 提交由与由每个字符对应的多个字符构成的第一字符串所隐含的第二字符串（S30）。 规格字符在第二字符串中输入（S40）。 系统比较密码对应的字符串。 执行认证（S70）。

公开(公告)号：KR1020090007944A

公开(公告)日：2009-01-21

申请号：KR1020070071187

申请日：2007-07-16

Applicant: 재단법인서울대학교산학협력재단

Inventor： 이승호 ,  정문영 ,  박영훈 ,  서승우

IPC: G06F21/36 ,  G06F21/60 ,  G06F21/10

CPC classification number: G06F21/36 ,  G06F21/10 ,  G06F21/602

Abstract: A security character string disclosure preventing method by using a fake round which provides the authentication service of one time password is provided to reduce the probability about confirming a real password. A practice frequency N is initialized from a system(S10). A system increases the round practice frequency(S20). The second character string implied with the first character string consisting of a plurality of characters corresponding to each character is submitted(S30). The specification character is inputted among the second character string(S40). Passwords corresponding character string are compared system. Authentication is performed(S70).

Abstract translation: 提供通过使用提供一次性密码的认证服务的假轮的安全字符串公开防止方法来减少确认真实密码的概率。 练习频率N从系统初始化（S10）。 系统增加了圆练习频率（S20）。 提交与由与每个字符相对应的多个字符组成的第一字符串所暗示的第二字符串（S30）。 在第二字符串中输入规格字符（S40）。 密码对应的字符串是系统比较的。 进行认证（S70）。

公开(公告)号：KR1020090007936A

公开(公告)日：2009-01-21

申请号：KR1020070071178

申请日：2007-07-16

Applicant: 재단법인서울대학교산학협력재단

Inventor： 이은동 ,  정문영 ,  박영훈 ,  정동욱 ,  서승우

IPC: G06F3/02 ,  G06F21/00

CPC classification number: G06F21/36 ,  G06F21/6245

Abstract: A security character string disclosure preventing method by using a pair of meaning character and a pair of the meaningless character are provided to match a pair of characters through rotation of a circle plate. The fixed security string is presented in a system(S10). The rotation of the rotation character string is used. It matches with the first character and the second character which is in the rotation character string in the fixed string and the user presses the input button(S20). A system obtains the information of the character pair matched for the target point of time. All character pairs of the security character string are completely inputted.

Abstract translation: 提供通过使用一对意义字符和一对无意义字符的安全字符串公开防止方法，以通过圆盘的旋转来匹配一对字符。 在系统中呈现固定安全字符串（S10）。 使用旋转字符串的旋转。 它与固定字符串中的旋转字符串中的第一个字符和第二个字符匹配，并且用户按下输入按钮（S20）。 系统获取与目标时间点匹配的字符对的信息。 安全字符串的所有字符对都被完全输入。