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Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
2
/ 2
ÀÌÀü°Ç
ÇѱÛÁ¦¸ñ(Korean Title)
ÃÖ´ë±æÀÌ ½ÃÄö½º¸¦ ÀÌ¿ëÇÑ ¾ÏÈ£µ¿±â½ÅÈ£ »ý¼º ±â¹ý
¿µ¹®Á¦¸ñ(English Title)
Cryptographic synchronization signal generation method using maximal length sequence
ÀúÀÚ(Author)
¼Õ¿µÈ£
¹è°Ç¼º
Young-ho Son
Keun-sung Bae
¿ø¹®¼ö·Ïó(Citation)
VOL 21 NO. 07 PP. 1401 ~ 1410 (2017. 07)
Çѱ۳»¿ë
(Korean Abstract)
¾ÏÈ£Åë½Å¿¡¼ ¾ÏÈ£±â¿Í º¹È£±â °£ÀÇ ¾ÏÈ£ ¾Ë°í¸®Áò ³»ºÎ »óÅ µ¿±â¿Í ½ºÆ®¸² µ¿±â¸¦ ÀÏÄ¡½ÃÅ°´Â ¾ÏÈ£µ¿±â ±â´ÉÀº ¾ÏÈ£Åë½Å Ç°Áú¿¡ ¸¹Àº ¿µÇâÀ» ÁØ´Ù. ¾ÏÈ£Åë½Å Áß ¼Û½Å±â¿Í ¼ö½Å±â °£¿¡ µ¿±â ÀÌÅ»ÀÌ ¹ß»ýÇϸé À絿±â¸¦ ÀÌ·ç±â±îÁö Åë½Å ºÒ´É »óÅ°¡ µÈ´Ù. ƯÈ÷ BERÀÌ ³ôÀº ¹«¼± ä³Î¿¡¼ ÀÌ·ç¾îÁö´Â ¾ÏÈ£Åë½Å¿¡¼´Â ¾ÏÈ£µ¿±â ¼º´ÉÀÌ ¾ÏÈ£Åë½ÅÀÇ Ç°ÁúÀ» Á¿ìÇÏ´Â ¿ä¼Ò°¡ µÈ´Ù. º» ³í¹®¿¡¼´Â BERÀÌ ³ôÀº ÀâÀ½ ȯ°æ¿¡¼µµ µ¿±â ¼º´ÉÀ» Çâ»ó½Ãų ¼ö ÀÖ´Â »õ·Î¿î ÇüÅÂÀÇ ¾ÏÈ£µ¿±â½ÅÈ£ »ý¼º ¹× °ËÃâ ±â¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈÇÑ ¹æ¹ý¿¡¼´Â ÃÖ´ë±æÀÌ ½ÃÄö½º ±â¹ÝÀÇ ¸¶½ºÅ· ±¸Á¶ ÇüÅ·Πµ¿±â½ÅÈ£¸¦ »ý¼ºÇÏ°í, ÃÖ´ë±æÀÌ ½ÃÄö½ºÀÇ »ó°üÇÔ¼ö Ư¼ºÀ» ÀÌ¿ëÇÏ¿© µ¿±â½ÅÈ£¸¦ °ËÃâÇÑ´Ù. ´Ù¾çÇÑ ¸ðÀǽÇÇèÀ» ÅëÇØ Á¦¾ÈÇÑ ¸¶½ºÅ· ±¸Á¶ ÇüÅÂÀÇ µ¿±â½ÅÈ£°¡ ±âÁ¸ÀÇ ¿¬Á¢ ÇüÅÂÀÇ µ¿±â½ÅÈ£¿¡ ºñÇÏ¿© ÀâÀ½È¯°æ¿¡¼ ¿ì¼öÇÑ µ¿±â ¼º´ÉÀ» º¸ÀÓÀ» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Cryptographic synchronization which synchronizes internal state of cryptographic algorithm and ciphertext stream between an encryptor and a decryptor affects the quality of secure communication. If there happens a synchronization loss between a transmitter and a receiver in a secure communication, the output of the receiver is unintelligible until resynchronization is made. Especially, in the secure communication on a wireless channel with high BER, synchronization performance can dominate its quality. In this paper, we proposed a novel and noise robust synchronization signal generation method as well as its detection algorithm. We generated a synchronization signal in the form of a masking structure based on the maximal length sequence, and developed a detection algorithm using a correlation property of the maximal length sequence. Experimental results have demonstrated that the proposed synchronization signal outperforms the conventional concatenated type synchronization signal in a noisy environment.
Å°¿öµå(Keyword)
¾ÏÈ£µ¿±â
¾ÏÈ£Åë½Å
µ¿±â½ÅÈ£
ÃÖ´ë±æÀÌ ½ÃÄö½º
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Cryptographic synchronization
secure communication
synchronization signal
m-sequence
masking
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