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udzura id:udzura

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udzura 2016/01/05
bitcoin

security

p2p
ãƒªãƒ³ã‚¯
Socket.IO â€” Socket.IO P2P
What you see above is a multiplayer version of the classic Snake game with a twist: whenever possible, it will automatically establish a peer-to-peer connection with your opponent. Today weâ€™re very happy to introduce Socket.IO P2P, the easiest way to establish a bidirectional events channel between two peers with a server fallback to provide maximum reliability. Letâ€™s look at the API and build a l
udzura 2015/07/17
ã²ã‚‡

socketio

p2p

webrtc
ãƒªãƒ³ã‚¯
P2P basic
P2P basic P2Pã¨ã¯ä½•ã‹ï¼Ÿã€œåŸºç¤Žã‹ã‚‰ç ”ç©¶ç´¹ä»‹ã¾ã§ã€œ æœ€è¿‘ï¼ŒP2Pã¨ã„ã†è¨€è‘‰ã‚’è‰¯ãèžãã¾ã™ã€‚ãƒ‹ãƒ¥ãƒ¼ã‚¹ã®ä¸ã§ã‚‚ã€ŒP2Pã‚’æ„è˜ã—ã¦ã„ã‚‹ã€ã¨ã‹ã€ŒP2Pã®ç ”ç©¶ã«ç€æ‰‹ã€ã¨ã„ã†ãƒ‹ãƒ¥ãƒ¼ã‚¹ã‚’èžã„ãŸã“ã¨ãŒã‚ã‚‹ã®ã§ã¯ãªã„ã§ã—ã‚‡ã†ã‹ï¼Ÿ ã—ã‹ã—ãªãŒã‚‰ï¼ŒP2Pã¨ã¯ä½•ã‹ã„ã¾ã„ã¡ã‚ã‹ã‚‰ãªã‹ã£ãŸã‚Šã€ã©ã‚“ãªã“ã¨ã«å½¹ã«ç«‹ã¤ã®ã‹èª¿ã¹ã«ãã„ã“ã¨ã‚‚ç¢ºã‹ã§ã™ã€‚ ã¾ãŸP2Pã®å‹•å‘ã¯æ¿€ã—ãï¼Œãã®æµã‚Œã«ã¤ã„ã¦ã„ãã®ã‚‚å¤§å¤‰ã§ã™ã€‚ ç§ã¯æƒ…å ±ç³»ã®ç ”ç©¶æ‰€ã§P2Pã®ç ”ç©¶é–‹ç™ºã‚’ã—ã¦ã„ã¾ã—ãŸã€‚ ãã®ãŸã‚ã€ã“ã®ã‚ˆã†ãªç¾çŠ¶ã‚’è¸ã¾ãˆã¦P2Pã®åŸºç¤Žã‹ã‚‰ç§ã®ç ”ç©¶ã¾ã§é‡è¦ãªéƒ¨åˆ†ã‚’ ãªã‚‹ã¹ãã‚ã‹ã‚Šã‚„ã™ãç´¹ä»‹è‡´ã—ã¾ã™ã€‚ ã¾ãŸç”¨èªžã«ã¤ã„ã¦ã¯ã‚ã‹ã‚Šã‚„ã™ã•ã‚’å„ªå…ˆã™ã‚‹ãŸã‚ã«ä¸€éƒ¨ä¸æ£ç¢ºãªã¨ã“ã‚ãŒã‚ã‚‹ã®ã§ã”äº†æ‰¿ä¸‹ã•ã„ã€‚ è³ªå•ï¼Œã‚³ãƒ¡ãƒ³ãƒˆç‰ã¯ãƒ¡ãƒ¼ãƒ«(tnishita@yahoo.co.jp) ã«ã¦é€£çµ¡ã—ã¦é ‚ãã¨ï¼Œãƒšãƒ¼ã‚¸æ”¹è‰¯ã®å‚è€ƒã«ãªã‚Šã¾ã™ã®ã§ã‚ˆã‚ã—ããŠé¡˜ã„è‡´ã—ã¾ã™ã€‚ P2Pã«
udzura 2013/12/15
p2p

network
ãƒªãƒ³ã‚¯
p2pã®åŒ¿åæ€§ã¯æ»ã‚“ã ã®ã‹ï¼Ÿ : ãƒ¡ã‚«AG
ã€æ•™ãˆã¦ãã‚“ã€‘ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ãƒ¼ãªã®ã§ã™ã€‚ ãªã‚“ã‹ãƒ‹ãƒ¥ãƒ¼ã‚¹ã¨ã‹ã‚ã£ãŸã‚‰ã“ã“ã«æ›¸ã“ã†ã‹ã¨æ€ã£ã¦ã¾ã™ã‚ˆã€‚ã¨ã‚Šã‚ãˆãšã€ãŠã„ã‚‰ã®ãƒ–ãƒã‚°
udzura 2013/12/15
winny

p2p

freenet

internet
ãƒªãƒ³ã‚¯
WebRTC: ã‚µãƒ¼ãƒã®ãªã„ä¸–ç•Œã§webã‚’ã¤ãã‚Šç›´ã™ [Realtime Conf. 2013Real] - ãƒ¯ã‚¶ãƒŽãƒ | wazanova.jp
[Video]Â http://2013.realtimeconf.com/video/ [Slide]Â https://speakerdeck.com/feross/webrtc-data-black-magic ã—ã‹ã—ã€23æ³ã«ã—ã¦æ—¢ã«ã“ã®ãƒ¬ã‚¸ãƒ¥ãƒ¡ã«ã‚ã‚‹ã‚ˆã†ãªã‚¢ã‚¦ãƒˆãƒ—ãƒƒãƒˆã‚’é€£ç™ºã—ã¦ã„ã‚‹Feross Aboukhadijehã¯ã™ã”ã„ã§ã™ãã€‚ãã®å½¼ãŒã€Realtime Conf. 2013ã§ã€WebRTCã®ç¾çŠ¶ã¨è‡ªã‚‰ã®æ–°ã—ã„ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã«ã¤ã„ã¦èªžã£ã¦ã„ã¾ã™ã€‚ 1) æ¦‚è¦ Video/éŸ³å£°/ãƒ‡ãƒ¼ã‚¿ã‚’ãƒ–ãƒ©ã‚¦ã‚¶é–“ã®peer-to-peerã§ç›´æŽ¥ã‚„ã‚Šã¨ã‚Šã§ãã‚‹ ãƒ—ãƒ©ã‚°ã‚¤ãƒ³ã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã¯ä¸è¦ WebSocketã‚¹ã‚¿ã‚¤ãƒ«ã®ã‚·ãƒ³ãƒ—ãƒ«ãªAPI 2) åˆ©ç”¨äº‹ä¾‹ ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒãƒ£ãƒƒãƒˆã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚§ã‚¢ã€é…å»¶ã®ãªã„ãƒžãƒ«ãƒãƒ—ãƒ¬ãƒ¼ãƒ¤ãƒ¼å¯¾æˆ¦åž‹ã‚²ãƒ¼ãƒ ã€åˆ†æ•£DBã€ãƒ€ãƒ¼ã‚¯web?ï¼ˆp-to-pã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ï¼‰ã€CDN Mozi
udzura 2013/11/02
p2p

web

javascript
ãƒªãƒ³ã‚¯
PeerJS - Simple peer-to-peer with WebRTC
The PeerJS library PeerJS simplifies WebRTC peer-to-peer data, video, and audio calls. PeerJS wraps the browser's WebRTC implementation to provide a complete, configurable, and easy-to-use peer-to-peer connection API. Equipped with nothing but an ID, a peer can create a P2P data or media stream connection to a remote peer. Downloads Setup Include the library with a script tag <script src="https://
udzura 2013/02/14
ã»ã¸ã€œ

javascript

p2p

webrtc
ãƒªãƒ³ã‚¯
Chordã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã«ã‚ˆã‚‹DHTå…¥é–€ - æƒ…å ±ç§‘å¦å±‹ã•ã‚“ã‚’ç›®æŒ‡ã™äººã®ãƒ¡ãƒ¢
ä½•ã‹ã®ã‚„ã‚Šæ–¹ã‚„ã€å•é¡Œã®è§£æ±ºæ–¹æ³•ã‚’ã©ã‚“ã©ã‚“ãƒ¡ãƒ¢ã™ã‚‹ãƒ–ãƒã‚°ã€‚ãã‚“ãªå¤§å¦é™¢ç”Ÿã®æ´»å‹•ã€Œã‚ãƒ£ãƒƒã‚·ãƒ¥ã€ã«èª°ã‹ãŒãƒ’ãƒƒãƒˆã—ã¦ãã‚Œã‚‹ã“ã¨ã‚’ç¥ˆã£ã¦ã€‚ Chordã®è§£èª¬ãƒšãƒ¼ã‚¸ã¯ç§»è»¢ã—ã¾ã—ãŸã€‚ã“ã¡ã‚‰ã‚’ã”è¦§ãã ã•ã„â†’ã€ŒChordã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã«ã‚ˆã‚‹DHTå…¥é–€ã€ Symphonyã®è§£èª¬ã‚’æ›¸ã„ãŸã¨ãã€ã€ŒChordã®ç†è§£ã‚’å‰æã€ã«ã—ã¦ã„ãŸã®ã§ã€ä»Šå›žã¯Chordã®ç´°ã‹ã„è§£èª¬ã‚¹ãƒ©ã‚¤ãƒ‰ã‚’ä½œæˆã—ã¾ã—ãŸã€‚ Chordã®èª¬æ˜Žã¯DHTã®ä¸ã§ã‚‚ã‚‚ã£ã¨ã‚‚ãŸãã•ã‚“æ›¸ã‹ã‚Œã¦ã„ã‚‹ã‚‚ã®ã ã¨æ€ã„ã¾ã™ã€‚ ã‚‚ã¡ã‚ã‚“ã€ãã‚Œã¨åŒã˜ã‚ˆã†ã«æ›¸ã„ãŸã®ã§ã¯ã»ã¨ã‚“ã©æ„å‘³ãŒãªã„ã¨æ€ã†ã®ã§ã€ è«–æ–‡ã‚’èªã‚“ã§ã‚‚ã™ãã«ã¯åˆ†ã‹ã‚‰ãªã„å…¨ä½“åƒã‹ã‚‰ã€ã©ã“ãŒé‡è¦ã‹ã€ã©ã®ç‚¹ã«ã‚ˆã£ã¦ãƒ¡ãƒªãƒƒãƒˆãŒç”Ÿã¾ã‚Œã¦ã„ã‚‹ã‹ãªã©ã«æ³¨ç›®ã—ã¤ã¤ã€é£²ã¿è¾¼ã¿ã‚„ã™ã„ã‚¹ãƒˆãƒ¼ãƒªãƒ¼ã«ãªã‚‹ã‚ˆã†ã«æ³¨æ„ã—ã¾ã—ãŸã€‚ ãªãŠã‹ã¤ã€å‡ºæ¥ã‚‹ã ã‘è«–æ–‡ã‹ã‚‰ã¶ã£é£›ã³ã™ãŽãªã„ã‚ˆã†ã«ã‚‚æ°—ã‚’ä»˜ã‘ã¦ã¿ã¾ã—ãŸã€‚ ã¾ã è’å‰Šã‚Šãªã®ã§ã™ãŒã€ã¨ã‚Šã‚ãˆãšã©ã†ãžã€‚
udzura 2011/12/08
algorithm

p2p
ãƒªãƒ³ã‚¯
ã‚¦ã‚£ãƒ‹ãƒ¼é–‹ç™ºè€…ã«ç„¡ç½ªåˆ¤æ±ºâ€¦å¤§é˜ªé«˜è£ã€ï¼‘å¯©ç ´æ£„ : ç¤¾ä¼š : YOMIURI ONLINEï¼ˆèªå£²æ–°èžï¼‰
ãƒ•ã‚¡ã‚¤ãƒ«å…±æœ‰ã‚½ãƒ•ãƒˆã€Œï¼·ï½‰ï½Žï½Žï½™ï¼ˆã‚¦ã‚£ãƒ‹ãƒ¼ï¼‰ã€ã‚’é–‹ç™ºã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã§å…¬é–‹ã—ã€åˆ©ç”¨è€…ã«ã‚ˆã‚‹ã‚²ãƒ¼ãƒ ã‚½ãƒ•ãƒˆãªã©ã®é•æ³•ã‚³ãƒ”ãƒ¼ã‚’åŠ©ã‘ãŸã¨ã—ã¦è‘—ä½œæ¨©æ³•é•åï¼ˆå…¬è¡†é€ä¿¡æ¨©ã®ä¾µå®³ï¼‰ã®ã»ã†åŠ©ç½ªã«å•ã‚ã‚ŒãŸå…ƒæ±äº¬å¤§å¤§å¦é™¢åŠ©æ‰‹ãƒ»é‡‘åå‹‡è¢«å‘Šï¼ˆï¼“ï¼™ï¼‰ã®æŽ§è¨´å¯©åˆ¤æ±ºãŒï¼˜æ—¥ã€å¤§é˜ªé«˜è£ã§ã‚ã£ãŸã€‚ å°å€‰æ£ä¸‰è£åˆ¤é•·ã¯ã€ç½°é‡‘ï¼‘ï¼•ï¼ä¸‡å††ã¨ã—ãŸï¼‘å¯©ãƒ»äº¬éƒ½åœ°è£åˆ¤æ±ºã‚’ç ´æ£„ã—ã€ç„¡ç½ªã‚’è¨€ã„æ¸¡ã—ãŸã€‚ ï¼’ï¼ï¼ï¼–å¹´ï¼‘ï¼’æœˆã®ï¼‘å¯©åˆ¤æ±ºã«ã‚ˆã‚‹ã¨ã€é‡‘åè¢«å‘Šã¯ã‚¦ã‚£ãƒ‹ãƒ¼ãŒè‘—ä½œæ¨©ä¾µå®³ã«ä½¿ã‚ã‚Œã¦ã„ã‚‹ã“ã¨ã‚’çŸ¥ã‚ŠãªãŒã‚‰ã€ï¼ï¼“å¹´ï¼™æœˆã€æœ€æ–°ç‰ˆã‚’ãƒãƒƒãƒˆã§å…¬é–‹ã€‚åŒæœˆã€æ¾å±±å¸‚ã®ç”·æ€§ã¨ç¾¤é¦¬çœŒé«˜å´Žå¸‚ã®ç”·æ€§ï¼ˆã„ãšã‚Œã‚‚è‘—ä½œæ¨©æ³•é•åã§æœ‰ç½ªç¢ºå®šï¼‰ãŒè¨ˆï¼’ï¼˜æœ¬ã®ã‚²ãƒ¼ãƒ ã‚½ãƒ•ãƒˆã‚„æ˜ ç”»ã‚’ãƒãƒƒãƒˆã«å…¬é–‹ã™ã‚‹ã®ã‚’æ‰‹åŠ©ã‘ã—ãŸã€‚ ä¸€æ–¹ã§ã€ï¼‘å¯©åˆ¤æ±ºã¯ã€ã€Œè‘—ä½œæ¨©ä¾µå®³ã‚’ã“ã¨ã•ã‚‰ç”Ÿã˜ã•ã›ã‚‹æ„å›³ã¯ãªãã€åˆ©ç›Šã‚‚å¾—ã¦ã„ãªã„ã€ã¨æŒ‡æ‘˜ã€‚æ‡²å½¹ï¼‘å¹´ã®æ±‚åˆ‘ã«å¯¾ã—ã€ç½°é‡‘åˆ‘ã‚’é¸æŠžã—ãŸã€‚ã“ã®ãŸã‚ç„¡ç½ªã‚’ä¸»å¼µã—ã¦ã„ãŸå¼è·å´ã ã‘ã§ãªãã€æ¤œå¯Ÿå´ã‚‚æŽ§
udzura 2009/10/08
p2p

Winny
ãƒªãƒ³ã‚¯
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