Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
NEON SIMD¸¦ ÅëÇÑ °æ·® ºí·Ï ¾ÏÈ£ CHAMÀÇ ¼Óµµ Çâ»ó ¹æ¾È¿¡ ´ëÇÑ ¿¬±¸ |
¿µ¹®Á¦¸ñ(English Title) |
Research for Speed Improvement Method of Lightweight Block Cipher CHAM using NEON SIMD |
ÀúÀÚ(Author) |
À̼öÁø
°ÁØ¿µ
È«µµ¿ø
¼Ã¢È£
Sujin Lee
Junyoung Kang
Dowon Hong
Changho Seo
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¿ø¹®¼ö·Ïó(Citation) |
VOL 46 NO. 05 PP. 0485 ~ 0491 (2019. 05) |
Çѱ۳»¿ë (Korean Abstract) |
ÀÓº£µðµå µð¹ÙÀ̽º ¹× IoT ±â±âµéÀÌ °³¹ßµÊ¿¡ µû¶ó Àú»ç¾ç µð¹ÙÀ̽º »ó¿¡¼ ±â¹Ð¼ºÀ» ´Þ¼ºÇϱâ À§ÇÑ °æ·® ºí·Ï ¾ÏÈ£µéÀÌ Á¦¾ÈµÇ°í ÀÖ´Ù. ÃÖ±Ù ±¹³»¿¡¼´Â 4-branch Feistel ±¸Á¶¸¦ °®´Â °æ·® ºí·Ï ¾ÏÈ£ ¾Ë°í¸®Áò CHAMÀÌ Á¦¾ÈµÇ¾ú´Ù. ÀÌ´Â Æò¹®°ú ºñ¹Ð Å°ÀÇ Å©±â¿¡ µû¶ó CHAM-64/128, CHAM-128/128, CHAM-128/256À¸·Î ±¸¼ºµÈ´Ù. »óÅ Á¤º¸¸¦ À¯ÁöÇÏÁö ¾Ê´Â(stateless on the fly) Å° ½ºÄÉÁÙ ±×¸®°í ARX ¿¬»êÀ» ±â¹ÝÀ¸·Î ÇÑ CHAMÀº ÀÓº£µðµå µð¹ÙÀ̽º¿¡¼ È¿À²ÀûÀ̸ç ƯÈ÷ Àú»ç¾ç µð¹ÙÀ̽º »ó¿¡¼ ´õ È¿À²ÀûÀÌ´Ù. º» ³í¹®¿¡¼´Â ±¹³» °æ·® ºí·Ï ¾ÏÈ£ CHAMÀ» ºÐ¼®ÇÏ°í °í»ç¾ç IoTȯ°æ¿¡¼ ÃÖÀûÈ ¹æ¾È¿¡ ´ëÇØ ¿¬±¸ÇÑ´Ù. ¶ó¿îµå Å°ÀÇ µ¶¸³Àû »ý¼º°ú 4-branch Feistel ¼ºÁúÀ» ÀÌ¿ëÇÏ¿© Á÷·Ä ±¸ÇöÀ» ÇÏ¿´°í, NEON(ARM SIMD)À» ÀÌ¿ëÇØ CHAMÀ» º´·Ä ±¸ÇöÇÏ¿© ARM Cortex-A53 »ó¿¡¼ ÃÖÀûÈÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
As embedded devices and IoT devices are being developed, lightweight block ciphers have been proposed to achieve confidentiality on low-end devices. Recently, a lightweight block cipher algorithm, called CHAM, with 4-branch Feistel structure was proposed in Korea. It is consists of CHAM-64/128, CHAM-128/128, and CHAM-128/256 depending on the size of plaintext and secret key. CHAM, which is based on ¡®stateless on the fly¡¯ key schedule and ARX operations, is efficient on embedded devices, especially on low-end devices. In this paper, we analyze the lightweight block cipher CHAM and study an optimization method on a high-end IoT device. We implemented a serial code by independently generating round keys and leveraging 4-branch Feistel structure, and optimized CHAM using NEON-SIMD on ARM Cortex-A53.
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Å°¿öµå(Keyword) |
°æ·® ºí·Ï ¾ÏÈ£
CHAM
ARX
NEON
SIMD
lightweight block cipher
CHAM
ARX
NEON
SIMD
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ÆÄÀÏ÷ºÎ |
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