Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
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¿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
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¿ø¹®¼ö·Ïó(Citation) |
VOL 46 NO. 05 PP. 0397 ~ 0404 (2019. 05) |
Çѱ۳»¿ë (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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¿µ¹®³»¿ë (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.
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Å°¿öµå(Keyword) |
ºí·ÏüÀÎ
Àü¹æÇâ ¾ÈÀü¼¸í
´ëÇ¥ÀÚ ±â¹Ý ºí·ÏüÀÎ
¾ÈÀü¼ººÐ¼®
blockchain
forward secure signature
delegation based blockchain
security analysis
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