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    • 2. 发明申请
    • Method of storing pattern matching policy and method of controlling alert message
    • 存储模式匹配策略的方法和控制报警信息的方法
    • US20070147382A1
    • 2007-06-28
    • US11635245
    • 2006-12-07
    • Byoung KimKwang BaikJin OhJong JangSung Sohn
    • Byoung KimKwang BaikJin OhJong JangSung Sohn
    • H04L12/56
    • H04L12/5602
    • A method of storing a pattern matching policy and a method of controlling an alert message are provided. The method includes (a) generating a content structure as a sub-structure of a header combination structure of a stored traffic pattern which is a policy to be newly applied to a pattern matching apparatus; (b) determining whether a content of the stored traffic pattern is identical to a content of an original traffic pattern stored in advance in the pattern matching apparatus; (c) allocating a content index of the content of the original traffic pattern to the content of the stored traffic pattern if the content of the stored traffic pattern is identical to the content of the original traffic pattern; and (d) determining whether a header combination structure of the original traffic pattern comprises only one content structure or more than one content structure and allocating a header index of the header combination structure of the stored traffic pattern to the header combination structure of the original traffic pattern if the header combination structure of the original traffic pattern is found to comprise only one content structure. Accordingly, it is possible to efficiently use hardware memories with limited storage capacities and effectively perform a pattern matching function.
    • 提供了一种存储模式匹配策略的方法和一种控制警报消息的方法。 该方法包括:(a)生成内容结构作为作为新应用于模式匹配装置的策略的存储的流量模式的头部组合结构的子结构; (b)确定存储的业务模式的内容是否与预先存储在模式匹配装置中的原始业务模式的内容相同; (c)如果存储的业务模式的内容与原始业务模式的内容相同,则将原始业务模式的内容的内容索引分配给所存储的业务模式的内容; 和(d)确定原始业务模式的报头组合结构是否仅包含一个内容结构或多于一个内容结构,并且将所存储的业务模式的报头组合结构的报头索引分配给原始业务的报头组合结构 如果发现原始流量模式的头组合结构仅包含一个内容结构,则模式。 因此,可以有效地使用具有有限存储容量的硬件存储器并且有效地执行模式匹配功能。
    • 5. 发明申请
    • Method and apparatus for storing intrusion rule
    • 存储入侵规则的方法和装置
    • US20070124815A1
    • 2007-05-31
    • US11484257
    • 2006-07-10
    • Kwang BaikByoung KimJin OhJong JangSung Sohn
    • Kwang BaikByoung KimJin OhJong JangSung Sohn
    • G06F12/14
    • H04L63/1416
    • A method and apparatus for storing an intrusion rule are provided. The method stores a new intrusion rule in an intrusion detection system having already stored intrusion rules, and includes: generating combinations of divisions capable of dividing the new intrusion rule into a plurality of partial intrusion rules; calculating the frequency of hash value collisions between each of the generated division combinations and the already stored intrusion rules; dividing the new intrusion rule according to the division combination which has the lowest calculated frequency of hash value collisions; and storing the divided new intrusion rule in a corresponding position of the intrusion detection system. According to the method and apparatus, the size of the storage unit occupied by the intrusion rule can be reduced, and by performing pattern matching, the performance of the intrusion detection system can be enhanced.
    • 提供了一种用于存储入侵规则的方法和装置。 该方法在已经存储了入侵规则的入侵检测系统中存储新的入侵规则,并且包括:生成能够将新的入侵规则划分成多个部分入侵规则的分割组合; 计算每个生成的分割组合与已经存储的入侵规则之间的散列值冲突的频率; 根据哈希值碰撞计算频率最低的划分组合划分新的入侵规则; 并将分割的新入侵规则存储在入侵检测系统的相应位置。 根据该方法和装置,可以减少入侵规则占用的存储单元的大小,通过执行模式匹配,能够提高入侵检测系统的性能。
    • 6. 发明申请
    • Method and apparatus for pattern matching based on packet reassembly
    • 基于分组重组的模式匹配的方法和装置
    • US20060198375A1
    • 2006-09-07
    • US11269340
    • 2005-11-07
    • Kwang BaikJin OhKi KimJong JangSung Sohn
    • Kwang BaikJin OhKi KimJong JangSung Sohn
    • H04J1/16H04L12/56
    • H04L63/1416H04L69/16H04L69/166
    • A method and apparatus for pattern matching using packet reassembly are provided. The pattern matching method using packet reassembly includes: extracting serial information in relation to a current input packet; determining whether or not pattern matching result information in relation to one or more previous packets and/or subsequent packets on the basis of the serial number of the current input packet is already stored; loading the pattern matching result information in relation to the previous packets and/or subsequent packets; and reassembling the loaded pattern matching result information in relation to the previous packets and/or subsequent packets and the current input packet and performing pattern matching with attack patterns which are already stored. Accordingly, by using packet reassembly, a method and apparatus for pattern matching capable of reducing memory usage without lowering the speed can be provided
    • 提供了一种使用分组重组进行模式匹配的方法和装置。 使用分组重组的模式匹配方法包括:提取与当前输入分组相关的串行信息; 基于当前输入分组的序列号来确定与一个或多个先前分组和/或后续分组相关的模式匹配结果信息是否已被存储; 加载与先前分组和/或后续分组相关的模式匹配结果信息; 并重新组合与先前分组和/或后续分组和当前输入分组相关的加载模式匹配结果信息,并且与已经存储的攻击模式执行模式匹配。 因此,通过使用分组重组,可以提供能够在不降低速度的情况下减少存储器使用的用于模式匹配的方法和装置
    • 7. 发明申请
    • Portable table with folding legs
    • 便携式桌子折叠腿
    • US20050022701A1
    • 2005-02-03
    • US10848445
    • 2004-05-17
    • Kwan ChoiKwang Baik
    • Kwan ChoiKwang Baik
    • A47B3/00
    • A47B3/0912
    • A table may include a tabletop and the tabletop is preferably constructed from blow-molded plastic. The table may also include a first leg that is movable between an extended position and a collapsed position relative to the tabletop, and a second leg that is movable between an extended position and a collapsed position relative to the tabletop. In addition, the table may include a first foot member that is rotatably connected to the first leg and a second foot member connected to the second end of the second leg. The first foot member may be rotated between a first position and a second position to allow the first leg and the second leg to be moved between the extended and collapsed positions.
    • 桌子可以包括桌面,桌面最好由吹塑塑料制成。 桌子还可以包括第一腿部,该第一腿部可相对于台面在延伸位置和折叠位置之间移动;以及第二腿部,其可相对于桌面在延伸位置和折叠位置之间移动。 此外,桌子可以包括可旋转地连接到第一腿的第一脚构件和连接到第二腿的第二端的第二脚构件。 第一脚构件可以在第一位置和第二位置之间旋转,以允许第一腿部和第二腿部在延伸位置和折叠位置之间移动。