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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

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ÇѱÛÁ¦¸ñ(Korean Title) È¿À²ÀûÀÎ ½Å°æ¸Á ±â¹Ý ¾ÏȣŰ ±³È¯ ±â¼ú
¿µ¹®Á¦¸ñ(English Title) Practically Secure Key Exchange Scheme based on Neural Network
ÀúÀÚ(Author) Á¤¼ö¿ë   È«µµ¿ø   ¼­Ã¢È£   Sooyong Jeong   Dowon Hong   Changho Seo  
¿ø¹®¼ö·Ïó(Citation) VOL 46 NO. 02 PP. 0208 ~ 0217 (2019. 02)
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(Korean Abstract)
Å°±³È¯ ¹®Á¦´Â ¾ÏÈ£Çп¡¼­ Áß¿äÇÑ °ü½É»ç Áß ÇϳªÀÌ´Ù. ÃÖ±Ù ½Å°æ¸Á ÇнÀÀ» ±â¹ÝÀ¸·Î, ±âÁ¸ÀÇ Å° ±³È¯ ¹æ½Äº¸´Ù È¿À²ÀûÀÎ Å°±³È¯ ±â¹ýµéÀÌ Á¦¾ÈµÇ¾ú´Ù. ÃÖÃÊÀÇ ½Å°æ¸Á ±â¹Ý Å°±³È¯ ±â¹ýÀÌ Á¦¾ÈµÈ ÀÌÈÄ ¸¹Àº ¾ÈÀü¼º ºÐ¼®°ú °ø°Ý ±â¹ýµéÀÌ ¿¬±¸µÇ¾ú´Ù. °ø°Ýµé Áß °¡Àå °­·ÂÇÑ ´Ù¼ö °ø°Ý(Majority attack)¿¡ ´ëÇØ ±âÁ¸¿¡ Á¦¾ÈµÈ Çìºñ¾È ÇнÀ(Hebbian learning)Àº Ãë¾àÁ¡ÀÌ Á¸ÀçÇÑ´Ù. ´Ù¼ö °ø°Ý¿¡ ¾ÈÀüÇÑ ¾ÈƼ Çìºñ¾ÈÇнÀ(Anti Hebbian learning)Àº È¿À²¼º¿¡ ÇÑ°è°¡ Á¸ÀçÇϸç, °á·ÐÀûÀ¸·Î ·£´ý ¿öÅ© ÇнÀ(Random walk learning)¿¡ ±â¹ÝÇÑ ½Å°æ¸Á ¾ÏÈ£¸¸ÀÌ ¾ÈÀüÇÏ°í È¿À²ÀûÀÎ ¹æ¹ýÀ¸·Î ¿ì¸®°¡ »ç¿ëÇÒ ¼ö ÀÖÀ½ÀÌ º¸¿©Á³´Ù. ÇÏÁö¸¸ ·£´ý ¿öÅ© ÇнÀÀ» »ç¿ëÇÏ¸é ½Å°æ¸Á ¾ÏÈ£ÀÇ ÀåÁ¡ÀÎ È¿À²¼ºÀÌ ´Ù¸¥ ÇнÀÀ» »ç¿ëÇÏ´Â °Íº¸´Ù °¨¼ÒÇÑ´Ù. ÀÌ¿¡ º» ³í¹®¿¡¼­´Â ±âÁ¸ÀÇ ·£´ý ¿öÅ© ÇнÀ°ú À̸¦ »ç¿ëÇÑ ½Å°æ¸Á ¾ÏÈ£¿¡ ´ëÇØ ºÐ¼®ÇÏ°í, ÀÌ°ÍÀ» ¹ÙÅÁÀ¸·Î ±âÁ¸ÀÇ ·£´ý ¿öÅ© ÇнÀº¸´Ù È¿À²ÀûÀÎ »õ·Î¿î ¹æ½ÄÀÇ ÇнÀÀ» Á¦¾ÈÇÑ´Ù. ¶ÇÇÑ, »õ·Î¿î ÇнÀÀ» »ç¿ëÇÑ Å° ±³È¯ ±â¼ú¿¡ ´ëÇÑ ÀÌ·ÐÀû ºÐ¼®°ú ´õºÒ¾î ´Ù¼ö °ø°ÝÀ» Á÷Á¢ ±¸ÇöÇÏ¿© Á¦¾È ¹æ½ÄÀÇ È¿À²¼º°ú ¾ÈÀü¼ºÀ» °ËÁõÇÑ´Ù.
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(English Abstract)
Key exchange is one of the major aspects in cryptography. Recently, compared to the existing key exchange schemes, more efficient key exchange schemes have been proposed based on neural network learning. After the first key exchange scheme based on neural network was proposed, various attack models have been suggested in security analysis. Hebbian learning rule is vulnerable to majority attack which is the most powerful attack. Anti Hebbian learning rule is secure against majority attack has a limitation in efficiency, so we can only use key exchange scheme based on random walk learning rule which is more secure and efficient than the others. However, if we use random walk learning rule, the efficiency which is advantage about neural cryptography is reduced than the other learning rules. In this paper we analyze random walk and neural cryptography, and we propose new learning rule which is more efficient than existing random walk learning rule. Also, we theoretically analyze about key exchange scheme which is uses new learning rule and verify the efficiency and security by implementing majority attack model.
Å°¿öµå(Keyword) ¾ÏȣŰ ±³È¯   ½Å°æ¸Á ¾ÏÈ£   ·£´ý ¿öÅ© ÇнÀ   ´Ù¼ö °ø°Ý   secure key exchange   neural cryptography   random walk learning   majority attack  
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