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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) Àü¹æÇâ ¾ÈÀü¼­¸íÀ» »ç¿ëÇÏ´Â ºü¸¥ ºí·ÏüÀÎ ÇÕÀÇ ¾Ë°í¸®Áò
¿µ¹®Á¦¸ñ(English Title) Fast Blockchain Consensus Algorithm with Forward Secure Signatures
ÀúÀÚ(Author) ÀÌÁ¤Çõ   ±èÁöÇý   ¿ÀÇö¿Á   Jeonghyuk Lee   Jihye Kim   Hyunok Oh  
¿ø¹®¼ö·Ïó(Citation) VOL 46 NO. 05 PP. 0397 ~ 0404 (2019. 05)
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(Korean Abstract)
ÃÖ±Ù ºí·ÏüÀÎÀº Áß¾Ó ÁýÁßÇü µ¥ÀÌÅÍ °ü¸® ¹æ½Ä¿¡ ´ëÇÑ ´ë¾ÈÀ¸·Î ±ÞºÎ»óÇÏ°í ÀÖ´Ù. ºñÆ®ÄÚÀÎ, ÀÌ´õ¸®¿ò°ú °°Àº ±âÁ¸ÀÇ ºí·ÏüÀο¡¼­´Â ½Å±Ôºí·ÏÀ» ½Å·Ú¼º ÀÖ°Ô Ãß°¡ÇÏ´Â ¹æ¹ýÀ¸·Î PoW(Proof of Work) ¾Ë°í¸®ÁòÀ» »ç¿ëÇÏ¿´´Âµ¥, PoW´Â ÇؽÃÇÔ¼ö °è»êÀ» ¼öÇàÇϱ⠶§¹®¿¡ ºü¸¥ °Å·¡°¡ ºÒ°¡´ÉÇÏ°í, ÇؽÃÇÔ¼ö °è»ê¿¡ ÇÊ¿äÇÑ Àü·Âºñ¿ëÀº ¸Å¿ì ³ô´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­´Â ±âÁ¸ÀÇ PoW¹æ½ÄÀ» ´ëüÇÒ ¼ö ÀÖ´Â ´ëÇ¥ÀÚ ±â¹ÝÀÇ ºí·ÏüÀÎÀ» Á¦¾ÈÇϸç, Á¦¾ÈÇÏ´Â ºí·ÏüÀο¡¼­´Â ±âÁ¸ ´ëÇ¥ÀÚ ±â¹Ý ºí·ÏüÀÎ(Delegated Proof of Stake)ÀÇ º¸¾È¼ºÀ» °­È­ÇÏ´Â ¹æ¹ýÀ¸·Î Àü¹æÇâ ¾ÈÀü¼­¸í(Forward secure signatures)À» »ç¿ëÇÏ¿´´Ù. º» ³í¹®¿¡¼­´Â ´ëÇ¥ÀÚ ±â¹ÝÀÇ ºí·ÏüÀο¡ »ç¿ëÇÒ ¼ö ÀÖ´Â Àü¹æÇâ ¾ÈÀü¼­¸íÀ» ±¸ÇöÇÏ°í, Àü¹æÇâ ¾ÈÀü¼­¸íÀ¸·Î ±¸ÃàÇÑ ºí·ÏüÀÎÀÇ ¼º´É ¹× ¾ÈÀü¼ºÀ» ºÐ¼®ÇÏ¿´´Ù.
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(English Abstract)
Recently blockchain has emerged as an alternative to central data management. Existing blockchains, such as Bitcoin or Ethereum use a PoW(Proof of Work) method to reliably add a new block to the blockchain. Since PoW method performs a hash function calculation and has a high computational cost, fast transactions are impossible with PoW. Therefore, we propose a delegation based blockchain that can replace PoW method and use a forward secure signature to enhance the blockchain security. We implemented a signature scheme that could be used in delegation based blockchains, and analyzed the performance and security of the proposed blockchain.
Å°¿öµå(Keyword) ºí·ÏüÀΠ  Àü¹æÇâ ¾ÈÀü¼­¸í   ´ëÇ¥ÀÚ ±â¹Ý ºí·ÏüÀΠ  ¾ÈÀü¼ººÐ¼®   blockchain   forward secure signature   delegation based blockchain   security analysis  
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