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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
DPay: ÇǾî-Åõ-ÇǾî ȯ°æÀ» À§ÇÑ ºÐ»ê Çؽà Å×ÀÌºí ±â¹ÝÀÇ ¼Ò¾× ÁöºÒ ½Ã½ºÅÛ |
¿µ¹®Á¦¸ñ(English Title) |
DPay: Distributed-Hash-Table-based Micropayment System for Peer-to-Peer Environments |
ÀúÀÚ(Author) |
¼´ëÀÏ
±è¼öÇö
¼Û±Ô¿ø
Daeil Seo
Suhyun Kim
Gyuwon Song
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¿ø¹®¼ö·Ïó(Citation) |
VOL 15 NO. 10 PP. 0752 ~ 0760 (2009. 10) |
Çѱ۳»¿ë (Korean Abstract) |
ÇǾî-Åõ-ÇǾî(P2P) ½Ã½ºÅÛÀº Âü¿©ÇÏ´Â »ç¿ëÀÚ°¡ ¼ÒÀ¯ÇÏ°í ÀÖ´Â ¸®¼Ò½º¸¦ ¼·Î °£¿¡ °øÀ¯ÇÏ¿© ¸¹Àº À̵æÀ» ¾òÀ» ¼ö ÀÖ°Ô ÇØÁØ´Ù. ±×·¯³ª »ç¿ëÀÚµéÀÌ ¾ÇÀÇÀûÀÎ ÇൿÀ» Çϰųª ¿ÀÇÁ¶óÀÎÀÏ ¶§, P2P ½Ã½ºÅÛÀ̳ª ÀÀ¿ë ÇÁ·Î±×·¥µéÀº Á¤»óÀûÀÎ ¼ºñ½º¸¦ Á¦°øÇϴµ¥ ¹®Á¦°¡ ¹ß»ý ÇÒ ¼ö ÀÖ´Ù. ¼Ò¾× ÁöºÒ ½Ã½ºÅÛÀ» ÀÌ¿ëÇÏ¿© ¼ºñ½º Á¦°ø¿¡ ´ëÇØ º¸»óÀ» ÇØÁشٸé ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇϴµ¥ µµ¿òÀÌ µÉ ¼ö ÀÖ´Ù. Áö±Ý±îÁö ´ëºÎºÐÀÇ ¼Ò¾× ÁöºÒ ½Ã½ºÅÛÀº Áß¾Ó ÁýÁßÈ µÈ ºê·ÎÄ¿¸¦ »ç¿ëÇϴµ¥, ºê·ÎÄ¿¿¡ ¸¹Àº ºÎÇϸ¦ ¹ß»ý½ÃÅ°´Â ¹®Á¦Á¡À» °¡Áö°í ÀÖ´Ù. ¿¹¸¦ µé¾î, ÄÚÀÎÀÇ ¼ÒÀ¯ÀÚ°¡ ¿ÀÇÁ¶óÀÎÀÎ °æ¿ì ºê·ÎÄ¿°¡ ¼ÒÀ¯ÀÚ¸¦ ´ë½ÅÇÏ¿© ÁöºÒ Á¤º¸¸¦ ó¸®Çϴµ¥ ÀÌ´Â ºê·ÎÄ¿ÀÇ ºÎÇϸ¦ Áõ°¡½ÃÅ°´Â ÁÖ¿ä ¿øÀÎÀ̸ç P2P ½Ã½ºÅÛ Æ¯¼º»ó ¸Å¿ì ºó¹øÇÏ°Ô ¹ß»ý ÇÒ ¼ö¹Û¿¡ ¾ø´Ù. º» ³í¹®¿¡¼ Á¦¾ÈÇÏ´Â DPay´Â P2P ȯ°æÀ» À§ÇÑ ¼Ò¾× ÁöºÒ ½Ã½ºÅÛÀ¸·Î, ºÐ»ê Çؽà Å×À̺íÀ» ÀÌ¿ëÇÏ¿© ¸ðµç ¾ÏÈ£ÈµÈ ÁöºÒ Á¤º¸¸¦ ¾ÈÀüÇÏ°Ô ±â·ÏÇÏ°í ´Ù¿îŸÀÓ ÇÁ·ÎÅäÄÝÀ» »ç¿ëÇÏÁö ¾ÊÀ½À¸·Î½á ºê·ÎÄ¿ÀÇ ºÎÇϸ¦ ȹ±âÀûÀ¸·Î °¨¼Ò½ÃÄÑ ½Ã½ºÅÛÀÇ È®À强À» Å©°Ô Çâ»ó ½ÃŲ ½Ã½ºÅÛÀÌ´Ù. ¶ÇÇÑ ½Ç½Ã°£ Áߺ¹ °áÁ¦ °ËÃâ ¹æ¹ýÀ» Á¦¾ÈÇÏ°í, DPay¿Í ±âÁ¸ ÁöºÒ ½Ã½ºÅÛ °£ÀÇ ºñ±³¿Í ½ÇÇè °á°ú¸¦ Á¦½ÃÇÑ´Ù. ½ÇÇè°á°ú DPay´Â ºê·ÎÄ¿ÀÇ ºÎÇÏ°¡ ±âÁ¸ ½Ã½ºÅÛ ´ëºñ Æò±Õ 30%·Î ÁÙ¾îµç °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, ½Ç½Ã°£ Áߺ¹ °áÁ¦ °ËÃâ°ú º¸´Ù ¾ÈÀüÇÑ ÁöºÒ Á¤º¸ ±â·ÏÀ» °¡´ÉÇÏ°Ô ÇÏ¿© ´Ù¾çÇÑ P2P ½Ã½ºÅÛ¿¡ Àû¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëµÈ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
Emerging peer-to-peer systems benefit from the large amount of resources provided by many peers. However, many peer-to-peer systems or applications suffer from malicious peers and it is not guaranteed that peers are always online. Micropayment systems are accounting and charging mechanism for buying services, so we can apply them to solve these problems. In the past the majority of micropayment system uses a centralized broker but the problem with most existing micropayment system is a heavy load on the broker. For instance, when an owner of the coin is offline, the broker delegates the owner and handles payment messages. It occurs frequently because of characteristic of peer-to-peer system and is another load of the broker. In this paper we introduce DPay, a peer-to-peer micropayment system that uses distributed hash table (DHT) for storing encrypted payment messages and increases scalability and reduces the load of broker by removing downtime protocol. We show the idea of real-time double spending detection in DPay and report the results of several evaluations in order to compare DPay and other payment scheme. In simulation result, the load of broker in DPay is reduced by 30% on average of other previous payment scheme. We expect that DPay can apply various peer-to-peer systems because it provides a real-time double spending detection and stores more secure payment messages. |
Å°¿öµå(Keyword) |
¼Ò¾× ÁöºÒ ½Ã½ºÅÛ
ÇǾî-Åõ-ÇǾî
ºÐ»ê Çؽà Å×À̺í
Micropayment system
Peer-to-Peer
Distributed Hash Table (DHT)
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ÆÄÀÏ÷ºÎ |
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