Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
ÇѱÛÁ¦¸ñ(Korean Title) |
ÇÕ¸®Àû ºÎÁ¤±â´ÉÀ» Áö¿øÇÏ´Â Ç÷¡½Ã ÀúÀåÀåÄ¡¸¦ À§ÇÑ »õ·Î¿î Ç÷¡½Ã ¸í·É¾î |
¿µ¹®Á¦¸ñ(English Title) |
New Flash Commands for Building Flash Storage Systems with Plausible Deniability |
ÀúÀÚ(Author) |
Á¶°ÇÈñ
±è¸í¼®
±èÁöÈ«
Geonhee Cho
Myungsuk Kim
Jihong Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 49 NO. 02 PP. 0120 ~ 0125 (2022. 02) |
Çѱ۳»¿ë (Korean Abstract) |
ÀüÅëÀûÀÎ ¾Ïȣȴ ¾ÏÈ£¹®ÀÇ Á¸À縦 ¼û±âÁö ¸øÇØ, º¹È£È Å°¸¦ °¾ÐÀûÀ¸·Î ¿ä±¸ÇÏ´Â °ø°Ý¿¡ ´ëÀÀÇÒ ¼ö ¾ø´Ù. À̸¦ ÇØ°áÇÏ°íÀÚ, µ¥ÀÌÅÍÀÇ Á¸À縦 ºÎÁ¤ÇÒ ¼ö ÀÖ°Ô ÇÏ´Â Plausible Deniability Ư¼ºÀ» ÀúÀåÀåÄ¡¿¡ Àû¿ëÇÑ Deniable Storage ¼Ö·ç¼Ç ¿¬±¸°¡ ÀÖ¾î¿Ô´Ù. È÷µç º¼·ýÀº Ÿ ¸ÞÄ¿´ÏÁò ´ëºñ »ó´ëÀûÀ¸·Î ³·Àº ¼º´É ¿À¹öÇìµå¸¦ °¡Á® ³Î¸® È°¿ëµÇ°í ÀÖÀ¸¸ç, ÃÖ±Ù¿¡´Â ¸ÖƼ½º³À¼¦ °ø°Ý¿¡ ´ëÀÀ °¡´ÉÇϵµ·Ï ¹ßÀüÇÏ¿´´Ù. ÇÏÁö¸¸ È÷µç º¼·ý ¸ÞÄ¿´ÏÁòÀº ±Ùº»ÀûÀ¸·Î ¾ÏÈ£¹®À» ¼û±â±â À§ÇÑ ·£´ýµ¥ÀÌÅÍ Ç®À» ÇÊ¿ä·Î Çϴµ¥, À̷κÎÅÍ Plausible Deniability Ư¼ºÀÌ ³ëÃâµÇ¾î µ¥ÀÌÅ͸¦ ¼û±â·Á´Â Àǵµ¸¦ ³»ºñÄ¥ ¼ö ÀÖ´Ù´Â ¹®Á¦Á¡À» °¡Áø´Ù. º» ³í¹®Àº µ¥ÀÌÅÍ ¼¼´ÏŸÀÌÁ¦À̼ǰú Plausible Deniability Ư¼ºÀ» µ¿½Ã¿¡ Áö¿øÇÏ´Â Ç÷¡½Ã Ĩ ¼öÁØ Á¢±ÙÁ¦¾î Ä¿¸Çµå¼ÂÀ» Á¦¾ÈÇÏ°í, À̸¦ È°¿ëÇØ ·£´ýµ¥ÀÌÅÍ ¾øÀ̵µ Plausible Deniability Ư¼ºÀ» Áö¿øÇÏ´Â ¼Ö·ç¼ÇÀ» Á¦¾ÈÇÑ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
Traditional encryption cannot defend against coercive attackers who compel the user to hand over decryption keys as it cannot hide the existence of the ciphertext. To solve this problem, there have been studies on a deniable storage solution that applies plausible deniability, a characteristic that allows the user to deny the existence of sensitive data, to a storage device. The hidden volume mechanism is being used in various deniable storage solutions due to its relatively low-performance overhead compared to other mechanisms, and has recently evolved to defend against multiple-snapshot attacks. However, the existing hidden volume mechanism fundamentally requires a dummy random data pool to hide the ciphertext. Due to the existence of dummy random data stored in the storage device, the plausible deniability characteristic is exposed, which can reveal the intention to hide the data. This study proposes a flash chip-level access control command set that simultaneously supports data sanitization and plausible deniability, and using this, we propose a hidden volume-based deniable storage solution that supports plausible deniability characteristics without dummy random data. |
Å°¿öµå(Keyword) |
3D ³½µå Ç÷¡½Ã
ÇÕ¸®Àû ºÎÁ¤ ±â´É
È÷µç º¼·ý ¸ÞÄ¿´ÏÁò
ºÎÁ¤°¡´É ÀúÀåÀåÄ¡
3D NAND flash
plausible deniability
hidden volume mechanism
deniable storage
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