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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö A : ½Ã½ºÅÛ ¹× ÀÌ·Ð

Á¤º¸°úÇÐȸ ³í¹®Áö A : ½Ã½ºÅÛ ¹× ÀÌ·Ð

Current Result Document : 90 / 128 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ½ºÅ©·¡Ä¡ÆÐµå ¸Þ¸ð¸® ±â¹Ý ÀÓº£µðµå ½Ã½ºÅÛ¿¡¼­ µ¥ÀÌÅÍ ±â¹Ð¼º º¸ÀåÀ» À§ÇÑ µ¿Àû ¸Þ¸ð¸® ÇÒ´ç ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Dynamic Scratchpad Allocation Method for Ensuring Data Confidentiality in SPM-based Embedded Systems
ÀúÀÚ(Author) È«´ë¿µ   ÀÓ¼º¼ö   Daeyoung Hong   Sung-Soo Lim  
¿ø¹®¼ö·Ïó(Citation) VOL 38 NO. 06 PP. 0298 ~ 0308 (2011. 12)
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(Korean Abstract)
ÀÓº£µðµå ½Ã½ºÅÛ¿¡¼­ ¹Î°¨ÇÑ µ¥ÀÌÅ͵éÀÌ ÀÚÁÖ »ý¼º, ÀúÀå, 󸮵ʿ¡ µû¶ó, ÀÌ·¯ÇÑ ½Ã½ºÅÛ¿¡¼­ µ¥ÀÌÅÍ ±â¹Ð¼º º¸ÀåÀÇ Çʿ伺ÀÌ Áõ°¡ÇÏ°í ÀÖ´Ù. µ¥ÀÌÅÍÀÇ ±â¹Ð¼ºÀ» º¸ÀåÇϱâ À§ÇÏ¿© ´Ù¾çÇÑ ¸Þ¸ð¸® ¾Ïȣȭ ±â¹ýÀÌ Á¦¾ÈµÇ¾úÁö¸¸, ¸Þ¸ð¸® Á¢±Ù¸¶´Ù ¼±ÇàµÇ´Â ¾Ïȣȭ ¿¬»êÀÇ ¿À¹öÇìµå´Â ½É°¢ÇÑ ¼º´É ÀúÇϸ¦ ÃÊ·¡ÇÑ´Ù. º» ³í¹®¿¡¼­´Â µ¥ÀÌÅÍ ±â¹Ð¼ºÀ» º¸ÀåÇϱâ À§ÇØ ¸Þ¸ð¸® ¾Ïȣȭ ±â¹ýÀ» äÅÃÇÑ SPM±â¹Ý ÀÓº£µðµå ½Ã½ºÅÛÀ» À§ÇÑ »õ·Î¿î µ¿Àû ¹Î°¨¼º ÀÎÁö ½ºÅ©·¡Ä¡ÆÐµå ¸Þ¸ð¸®(SPM) ÇÒ´ç ±â¹ý ¹× ¼¼ °¡Áö Á¤Ã¥µéÀ» Á¦¾ÈÇÑ´Ù. ¹Î°¨¼º ¿ì¼±(SensitivityFirst, SF) Á¤Ã¥À̶ó ºÒ¸®´Â ù ¹ø° Á¤Ã¥Àº ¾Ïȣȭ°¡ ÇÊ¿äÇÑ ¹Î°¨ÇÑ µ¥ÀÌÅ͸¦ ÃÖ´ëÇÑ ¿À·¡ ¿ÂĨ SPM¿¡ »óÁÖ½ÃÅ°´Â ÇÒ´ç Á¤Ã¥À¸·Î ¸Þ¸ð¸® ¾Ïȣȭ Ƚ¼ö¸¦ ÃÖ¼ÒÈ­½ÃŲ´Ù. Á¢±Ù ¿ì¼±(AccessFirst, AF) Á¤Ã¥À̶ó ºÒ¸®´Â µÎ ¹ø° Á¤Ã¥Àº ¹Î°¨¼º°ú »ó°ü¾øÀÌ ÀÌ¿ë·üÀÌ ³ôÀº µ¥ÀÌÅ͸¦ ¿ÂĨ SPM¿¡ ÇÒ´çÇÔÀ¸·Î ¿ÀÇÁĨ ¸Þ¸ð¸® Á¢±Ù Ƚ¼ö¸¦ ÃÖ¼ÒÈ­½ÃÅ°´Â Á¤Ã¥ÀÌ´Ù. ¸¶Áö¸·À¸·Î, SF Á¤Ã¥°ú AF Á¤Ã¥°£ÀÇ Æ®·¹À̵å¿ÀÇÁ °ü°è ºÐ¼®À» ÅëÇØ Á¤ÀÇµÈ ÇÏÀ̺긮µå Á¤Ã¥Àº ¸Þ¸ð¸® ¾Ïȣȭ ¿¬»ê°ú ¿ÀÇÁĨ ¸Þ¸ð¸® Á¢±ÙÀ» Æ÷ÇÔÇÑ ÃÑ ¸Þ¸ð¸® Á¢±Ù Áö¿¬½Ã°£À» ÃÖ¼ÒÈ­ÇÑ´Ù.
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(English Abstract)
Significantly increased use of sensitive data (creating, storing, and manipulating such data) in embedded systems has necessitated strictl and efficient guarantee of the confidentiality of such data. Ensuring confidentiality for every data transfer between on-chip and off-chip memory components has naturally deployed separate cryptographic operations during transfers incurring additional significant costs in memory accesses and performance degradation. We propose a memory management scheme for scratchpad memory (SPM)-based embedded systems where SPMs hold sensitive data with dynamic replacement. The objective of the proposed scheme is to minimize the off-chip memory accesses through careful selection and management of sensitive data to be allocated onto SPM. Three different policies are proposed: First, SensitivityFirst, retains sensitive data in on-chip SPM as long as possible, thereby minimizing the number of cryptographic operations. Second, AccessFirst, allocates data with high utilization to on-chip SPM and thereby reduces the number of off-chip memory accesses. Finally, the Hybrid policy which is defined through the trade-off between SF and AF minimizes the overall latency of memory accesses including cryptographic operations and off-chip memory accesses.
Å°¿öµå(Keyword) ¸Þ¸ð¸® ÇÒ´ç ±â¹ý   ½ºÅ©·¡Ä¡ÆÐµå ¸Þ¸ð¸®   ÀÓº£µðµå ½Ã½ºÅÛ   ¸Þ¸ð¸® ¾Ïȣȭ   µ¥ÀÌÅÍ ±â¹Ð¼º   Memory Allocation   Scratchpad Memory   Embedded Systems   Memory Encryption   Data Confidentiality  
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