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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö C

Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö C

Current Result Document : 2 / 11 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ½Ã±×³Êó ÇØ½Ì ±â¹Ý °í¼º´É ħÀÔ¹æÁö ¾Ë°í¸®Áò ¼³°è ¹× ±¸Çö
¿µ¹®Á¦¸ñ(English Title) The Design and Implementation of High Performance Intrusion Prevention Algorithm based on Signature Hashing
ÀúÀÚ(Author) ¿ÕÁ¤¼®   °ûÈı٠  Á¤À±Àç   ±ÇÈñ¿õ   Á¤±Ô½Ä  
¿ø¹®¼ö·Ïó(Citation) VOL 14-C NO. 03 PP. 0209 ~ 0220 (2007. 06)
Çѱ۳»¿ë
(Korean Abstract)
ħÀÔ¹æÁö ½Ã½ºÅÛ(IPS, Intrusion Prevention System)Àº ÀζóÀθðµå(in-line mode)·Î ³×Æ®¿öÅ©¿¡ ¼³Ä¡µÇ¾î, ³×Æ®¿öÅ©¸¦ Áö³ª´Â ÆÐŶ ¶Ç´Â ¼¼¼ÇÀ» °Ë»çÇÏ¿© ¸¸ÀÏ ±× ÆÐŶ¿¡¼­ °ø°ÝÀÌ °¨ÁöµÇ¸é ÇØ´ç ÆÐŶÀ» Æó±âÇϰųª ¼¼¼ÇÀ» Á¾·á½ÃÅ´À¸·Î¼­ ¿ÜºÎÀÇ Ä§ÀÔÀ¸·ÎºÎÅÍ ³×Æ®¿öÅ©¸¦ º¸È£ÇÏ´Â ½Ã½ºÅÛÀ» ÀǹÌÇÑ´Ù. IPS¿¡¼­ ÁÖ·Î »ç¿ëµÇ´Â ½Ã±×³Êó ±â¹Ý ÇÊÅ͸µ¿¡¼­´Â ħÀÔ¹æÁö½Ã½ºÅÛÀ» Åë°úÇÏ´Â ÆÐŶÀÇ ÆäÀ̷εå¿Í ½Ã±×³Êó¶ó°í ºÒ¸®´Â °ø°ÝÆÐÅϵé°ú ºñ±³ÇÏ¿© °°À¸¸é ±× ÆÐŶÀ» Æó±âÇÑ´Ù. ½Ã±×³ÊóÀÇ °³¼ö°¡ Áõ°¡ÇÔ¿¡ µû¶ó ÇϳªÀÇ µé¾î¿Â ÆÐŶ¿¡ ´ëÇÏ¿© ¿ä±¸µÇ´Â ÆÐÅÏ ¸ÅĪ ½Ã°£Àº Áõ°¡ÇÏ°Ô µÇ¾î ÆÐŶÁö¿¬ ¾øÀÌ µ¿ÀÛÇÏ´Â °í¼º´É ħÀÔŽÁö½Ã½ºÅÛÀ» °³¹ßÇÏ´Â °ÍÀÌ ¾î·Æ°Ô µÇ¾ú´Ù. º» ³í¹®¿¡¼­´Â ÆÐÅÏ ¸ÅĪ ½Ã°£À» ½Ã±×³ÊóÀÇ °³¼ö¿Í ¹«°üÇÏ°Ô Çϱâ À§ÇÏ¿© ½Ã±×³Êó ÇØ½Ì ±â¹Ý¿¡ ±â¹ÝÇÑ °í¼º´É ħÀÔ¹æÁö½Ã½ºÅÛÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÑ ¹æ½ÄÀ» ¸®´ª½º Ä¿³Î ¸ðµâ ÇüÅ·ΠPC¿¡¼­ ±¸ÇöÇÏ¿´°í ¿ú ¹ß»ý±â, ÆÐŶ¹ß»ý±â, ½º¸¶Æ®ºñÆ®¶ó´Â ³×Æ®¿öÅ© ¼º´É ÃøÁ¤±â¸¦ ÀÌ¿ëÇÏ¿© ½ÃÇèÇÏ¿´´Ù. ½ÇÇè°á°ú¿¡ ÀÇÇÏ¸é ±âÁ¸ ¹æ½Ä¿¡¼­´Â ½Ã±×³Êó °³¼ö°¡ Áõ°¡ÇÔ¿¡ µû¶ó ¼º´ÉÀÌ ÀúÇϵǾúÁö¸¸ º» ³í¹®¿¡¼­ Á¦¾ÈÇÑ ¹æ½ÄÀº ¼º´ÉÀÌ ÀúÇϵÇÁö ¾Ê¾Ò´Ù.
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(English Abstract)
IPS(Intrusion Prevention Systems), which is installed in inline mode in a network, protects network from outside attacks by inspecting
the incoming/outgoing packets and sessions, and dropping the packet or closing the sessions if an attack is detected in the packet. In the
signature based filtering, the payload of a packet passing through IPS is matched with some attack patterns called signatures and dropped
if matched. As the number of signatures increases, the time required for the pattern matching for a packet increases accordingly so that it
becomes difficult to develop a high performance IPS working without packet delay. In this paper, we propose a high performance IPS
based on signature hashing to make the pattern matching time independent of the number of signatures. We implemented the proposed
scheme in a Linux kernel module in a PC and tested it using worm generator, packet generator and network performance measure
instrument called smart bit. Experimental results show that the performance of existing method is degraded as the number of signatures
increases whereas the performance of the proposed scheme is not degraded.
Å°¿öµå(Keyword) ħÀÔ¹æÁö ½Ã½ºÅÛ   ½Ã±×³ÊÃÄ ±â¹Ý ÇÊÅ͸µ   ½Ã±×³ÊÃÄ Çؽ̠  IPS   Signature based Filtering   Signature Hashing  
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