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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > 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 : 9 / 128 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) Ŭ·¯½ºÅ͸¦ ÀÌ¿ëÇÑ °í¼º´É RC4 ¾Ïȣȭ Çϵå¿þ¾î ¼³°è
¿µ¹®Á¦¸ñ(English Title) The Design of a High-Performance RC4 Cipher Hardware using Clusters
ÀúÀÚ(Author) À̱ÔÈñ   Kyu-Hee Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 23 NO. 07 PP. 0875 ~ 0880 (2019. 07)
Çѱ۳»¿ë
(Korean Abstract)
RC4 ½ºÆ®¸² ¾Ïȣȭ´Â ³»ºÎ ±¸ÇöÀÌ °£´ÜÇÏ°í ºü¸£°Ô ¾Ïȣȭ ÇÒ ¼ö ÀÖ´Â ÃÊ°æ·® ¾Ïȣȭ ¾Ë°í¸®ÁòÀ¸·Î IEEE 802.11ÀÇ WEP¿Í IEEE 802.11iÀÇ TKIP µî¿¡ ³Î¸® ÀÌ¿ëµÇ°í ÀÖ´Ù. RC4´Â IoT µîÀÇ Á¦ÇÑÀû ÀÚ¿øÀ» °®´Â ½Ã½ºÅ۵鿡µµ »ç¿ëµÇÁö¸¸ ¼º´É»ó Á¦¾àÀÌ ÀÖ´Ù. RC4 ¾Ïȣȭ´Â S-¹è¿­°ú K-¹è¿­ÀÇ ÃʱâÈ­ ¹× ·£´ýÈ­¸¦ ¼öÇàÇÏ´Â KSA(Key Scheduling Algorithm)¿Í ·£´ýÈ­µÈ S-¹è¿­À» ÀÌ¿ëÇÏ¿© ¾ÏÈ£¹®À» »ý¼ºÇÏ´Â PRGA(Pseudo-Random Generation Algorithm)ÀÇ µÎ´Ü°è·Î ±¸¼ºµÈ´Ù. º» ³í¹®¿¡¼­´Â KSA¿¡¼­ ¹ß»ýÇÏ´Â ÃʱâÈ­ Áö¿¬½Ã°£À» ÁÙÀ̱â À§ÇØ, ·£´ýÈ­ °úÁ¤¿¡ ÃʱâÈ­¸¦ »ðÀÔÇÏ¿© ÇÔ²² ó¸®ÇÑ´Ù. KSAÀÇ ·£´ýÈ­¿¡¼­ ±³È¯(swap) ÀÛ¾÷°ú PRGAÀÇ ¾ÏÈ£¹® »ý¼ºÀº Ŭ·¯½ºÅ͸¦ ÀÌ¿ëÇÏ¿© ¸Å Ŭ·Ï¸¶´Ù µÎ °³ÀÇ ±³È¯ ¹× ¾ÏÈ£¹®ÀÌ »ý¼ºµÇµµ·Ï ÇÏ¿´´Ù. Á¦¾ÈµÈ RC4 ¾Ïȣȭ Çϵå¿þ¾î ±¸Á¶´Â ÃʱâÈ­ Áö¿¬½Ã°£ÀÌ ¹ß»ýÇÏÁö ¾ÊÀ¸¸ç, ·£´ýÈ­¿Í Å° ½ºÆ®¸² »ý¼ºÀ²¿¡¼­ ´Ù¸¥ ¿¬±¸µé°ú ºñ±³ÇÏ¿© ¾à 2¹è¿¡¼­ 6¹èÀÇ ¼º´ÉÀÌ Çâ»óµÇ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
A RC4 stream cipher is widely used for security applications such as IEEE 802.11 WEP, IEEE 802.11i TKIP and so on, because it can be simply implemented to dedicated circuits and achieve a high-speed encryption. RC4 is also used for systems with limited resources like IoT, but there are performance limitations. RC4 consists of two stages, KSA and PRGA. KSA performs initialization and randomization of S-box and K-box and PRGA produces cipher texts using the randomized S-box. In this paper, we initialize the S-box and K-box in the randomization of the KSA stage to reduce the initialization delay. In the randomization, we use clusters to process swap operation between elements of S-box in parallel and can generate two cipher texts per clock. The proposed RC4 cipher hardware can initialize S-box and K-box without any delay and achieves about 2 times to 6 times improvement in KSA randomization and key stream generation.
Å°¿öµå(Keyword) ½ºÆ®¸² ¾Ïȣȭ ¾Ë°í¸®Áò   RC4 Çϵå¿þ¾î   °æ·®¾Ïȣȭ ¾Ë°í¸®Áò   Ŭ·¯½ºÅÍ ¾Ïȣȭ   Stream cipher algorithm   RC4 hardware   Light-weight cipher algorithm   cluster encryption  
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