Fortuna - www.textfile.orghttp://en.wikipedia.org/wiki/Fortuna_%28PRNG%29 Fortunaã¯ã€æš—å·å¦çš„ã«å®‰å…¨ãªPRNGã®ã²ã¨ã¤ã€‚Bruce Schneierã¨Niels Fergusonã«ã‚ˆã‚‹ã€‚ via http://d.hatena.ne.jp/lethevert/20061123/p2
スラッシュドット ジャパン | CPUã®é«˜é€ŸåŒ–技術を悪用ã—ãŸRSAéµç›—è´ãŒå¯èƒ½ã‹
We prove that a carefully written spy-process running simultaneously with an RSA-process, is able to collect during one \emph{single} RSA signing execution almost all of the secret key bits. ã¤ã¾ã‚Šï¼ŒRSAã«ã‚ˆã‚‹æš—å·åŒ–処ç†ã‚’è¡Œã£ã¦ã„ã‚‹ã®ã¨åŒã˜ãƒžã‚·ãƒ³ã§è§£èªãƒ—ãƒã‚»ã‚¹ã‚’走らã›ã‚‰ã‚Œã‚‹ã“ã¨ãŒå¤§å‰æ，ã¨ã„ã†æ™‚点ã§æ”»æ’ƒæ‰‹æ®µã¯ãã‚Œãªã‚Šã«çµžã‚‰ã‚Œã‚‹ã‹ã¨ï¼Ž 逆ã«è¨€ãˆã°ï¼Œä¾‹ãˆã°ä¸€äººã ã‘ãŒä½¿ã†PCã®ãƒ–ラウザã§RSAアルゴリズムを使ã£ã¦SSL通信をやるã¨ã—ã¦ï¼Œãã®æš—å·éµãŒãã®PC上ã§ã“ã®æ–¹æ³•ã§ç ´ã‚‰ã‚Œã‚‹ãƒªã‚¹ã‚¯ã¯å°ã•ã„(ãã‚‚ãã‚‚ãã®PC上ã§ãã‚“ãªã‚„ã°ã„プãƒã‚»ã‚¹ãŒå‹•ä½œã§ãã¦ã—ã¾ã†ç’°å¢ƒè‡ªä½“ãŒå•é¡Œ)ã¨è€ƒãˆã‚‰ã‚Œã¾ã™ï¼Ž 勿論， Moreover
疑似乱数 - 186 @ hatenablog
ã¡ã‚‡ã£ã¨ã—ãŸæ€ã„ã¤ã。 疑似乱数列を生æˆã™ã‚‹è¨ˆç®—方法ã®å¦¥å½“性を調ã¹ã‚‹ã®ã«ãƒãƒ¥ãƒ¼ãƒªãƒ³ã‚°ãƒ†ã‚¹ãƒˆçš„方法ã¯ä½¿ãˆã‚‹ã‹ã€‚ 放射線ãªã©ã‚’用ã„ãŸçœŸã®ä¹±æ•°åˆ—ã¨ã€èª¿æŸ»ã—ãŸã„計算方法ã®ç”Ÿæˆã™ã‚‹ç–‘似乱数列ã¨ãŒã€äºŒã¤ã®ãƒãƒ£ãƒãƒ«A, Bã‹ã‚‰æµã‚Œå‡ºã¦ãる。ã§ã‚‚ã©ã¡ã‚‰ã®æ•°åˆ—ãŒã©ã¡ã‚‰ã®ãƒãƒ£ãƒãƒ«ã‹ã‚‰æµã‚Œã¦ãã‚‹ã‹ã¯åˆ†ã‹ã‚‰ãªã„ã¨ã™ã‚‹ã€‚乱数を検定ã™ã‚‹ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ を別途用æ„ã—ã¦ãŠãã€äºŒã¤ã®ãƒãƒ£ãƒãƒ«ã®ã©ã¡ã‚‰ãŒçœŸã®ä¹±æ•°åˆ—ã§ã‚ã‚‹ã‹åˆ¤å®šã§ãã‚‹ã‹ã€‚ ――ã¨ã„ã†è©±é¡Œã€‚ ãã‚ŒãŒã§ãã‚‹ãªã‚‰ã€ãƒ©ãƒ³ãƒ€ãƒ ãƒã‚¹ã¨çŸ¥èƒ½ã¨ã®é¡žä¼¼æ€§ã¨ã„ã†é€†èª¬çš„ã§é¢ç™½ã„話題ã«ã¤ãªãŒã‚‹ã。 ãƒãƒ¥ãƒ¼ãƒªãƒ³ã‚°ãƒ†ã‚¹ãƒˆã§ã¯ã€æœ¬ç‰©ã®äººé–“ã¨é©åˆ‡ãªåˆ¤å®šè€…ã«ã‚ˆã£ã¦ã€ã‚³ãƒ³ãƒ”ュータã®ãƒ—ãƒã‚°ãƒ©ãƒ ã®çŸ¥èƒ½æ€§(?)を判定ã™ã‚‹ï¼ˆè¨€ã„æ›ãˆã‚‹ã¨ãれを知能ã®å®šç¾©ã¨ã™ã‚‹ï¼‰ã€‚上ã«æ›¸ã„ãŸãƒ†ã‚¹ãƒˆã§ã¯ã€çœŸã®ä¹±æ•°åˆ—（本物ã®äººé–“ã®ä»£ã‚り）ã¨æ¤œå®šã‚’ã™ã‚‹ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ （é©åˆ‡ãªåˆ¤å®šè€…ã®ä»£ã‚り）ã«ã‚ˆã£ã¦ã€ 疑似乱数列ã®è¨ˆç®—方法ã®å¦¥å½“性を判定ã™
TrueCrypt - Free Open-Source On-The-Fly Disk Encryption Software for Windows Vista/XP, Mac OS X and Linux
WARNING: Using TrueCrypt is not secure as it may contain unfixed security issues This page exists only to help migrate existing data encrypted by TrueCrypt. The development of TrueCrypt was ended in 5/2014 after Microsoft terminated support of Windows XP. Windows 8/7/Vista and later offer integrated support for encrypted disks and virtual disk images. Such integrated support is also available on o
ã€ãƒ¬ãƒãƒ¼ãƒˆã€‘IPAã€ã‚¹ãƒˆãƒªãƒ¼ãƒ æš—å·ã€ŒToyocryptã€ã®è§£èªã«æˆåŠŸ - 解èªã®èƒŒæ™¯ã€æ‰‹æ³•ã¨ã¯? | ãƒãƒƒãƒˆ | マイコミジャーナル
IPA(æƒ…å ±å‡¦ç†æŽ¨é€²æ©Ÿæ§‹)ã¯9月26æ—¥ã€éƒ½å†…ã§ç·Šæ€¥ã®ãƒ—レスå‘ã‘説明会を開催ã—ãŸã€‚IPAã§ã¯ä»¥å‰ã‹ã‚‰æš—å·æŠ€è¡“ã«é–¢ã™ã‚‹ä¿¡é ¼æ€§ã®è©•ä¾¡ãƒ»æ¯”較ãªã©ã‚’è¡Œã†ã€ŒCRYPTRECã€ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã‚’通ã˜ã¦å¤šãã®æš—å·ã®ç ”究を行ã£ã¦ãŠã‚Šã€ä»Šå›žã¯ãã®ç ”究ã®ä¸€ç’°ã¨ã—ã¦ã‚¹ãƒˆãƒªãƒ¼ãƒ æš—å·ã€ŒToyocryptã€ã®è§£èªã«æˆåŠŸã€èª¬æ˜Žä¼šã§ã¯ãã®æ¦‚è¦ã¨ä»Šå¾Œã®äºˆå®šãŒèªžã‚‰ã‚ŒãŸã€‚ ç¾åœ¨ã§ã¯ã‚ãšã‹20秒ã§ç§˜å¯†éµã‚’抽出å¯èƒ½ 今回解èªã®å¯¾è±¡ã¨ãªã£ãŸæš—å·ã¯ã€æ±æ´‹é€šä¿¡æ©Ÿ(ç¾ãƒ»ã‚¨ãƒ—ソントヨコム)ãŒé–‹ç™ºã—ãŸã‚¹ãƒˆãƒªãƒ¼ãƒ æš—å·ã€ŒToyocryptã€ã€‚ã“ã‚Œã¯å…ƒã€…ã€é›»å政府推奨暗å·ã¸ã®æŽ¡ç”¨ã‚’目指ã—ã¦åŒç¤¾ãŒ2000å¹´ã«é–‹ç™ºã—ãŸæš—å·ã ãŒã€å®Ÿéš›ã«ã¯å‰è¿°ã®ã€ŒCRYPTRECã€ã«ãŠã„ã¦ãã®æš—å·å¼·åº¦ã«é›£ãŒã‚ã‚‹ã“ã¨ãªã©ãŒæŒ‡æ‘˜ã•ã‚ŒãŸãŸã‚採用ã«ã¯è‡³ã‚‰ãšã€ç¾å®Ÿã«ã¯ã»ã¨ã‚“ã©ä½¿ã‚ã‚Œã¦ã„ãªã„。ã§ã¯ãªãœã€IPAã¯ã€ŒToyocryptã€ã®è§£èªã‚’目指ã—ãŸã®ã‹ã€‚åŒæš—å·ã«ã¤ã„ã¦ã¯ã€è¿‘å¹´æ–°ãŸã«ç™»å ´ã—ãŸ
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What is Time Capsule Encryption?
Aã•ã‚“ãŒBã•ã‚“ã«ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’渡ã™çŠ¶æ³ã‚’考ãˆã¾ã™. Aã•ã‚“ã¯ä»Šãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’渡ã—ãŸã„ã®ã ã‘ã©, Bã•ã‚“ã«ã¯æ˜Žæ—¥ã«ãªã‚‰ãªã„ã¨èªã‚“ã§ã»ã—ããªã„ã¨ã—ã¾ã™. ã—ã‹ã‚‚Aã•ã‚“ã¯æ˜Žæ—¥ã«ãªã‚‹ã¨å±±å¥¥ã«ã“ã‚‚ã‚‹ã“ã¨ã«ãªã£ã¦ã„ã¦Bã•ã‚“ã¨é€£çµ¡ã§ããªã„ã¨ã—ã¾ã™. ã“ã®ã¨ã, Bã•ã‚“å´(ã§å‹•ãソフト)ã¯ã€Œæ˜Žæ—¥ã«ãªã£ãŸã€ã¨ã„ã†ã“ã¨ã‚’確èªã™ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™. Bã•ã‚“ã®ãƒ‘ソコンã®å†…蔵時計を使ã£ã¦ç¢ºèªã™ã‚‹ã®ã¯ãƒŠãƒ³ã‚»ãƒ³ã‚¹ã§ã™. 何故ãªã‚‰, パソコンã®æ™‚計ã¯Bã•ã‚“ã®å¥½ããªæ™‚刻ã«å¤‰æ›´ã§ãã¦ã—ã¾ã†ã‹ã‚‰ã§ã™. 誰もãŒæ£ã—ã„ã¨æ€ãˆã‚‹æ™‚刻ãŒå¿…è¦ãªã®ã§ã™. ãã“ã§é›»è©±ç•ªå·117ã®æ™‚å ±ã«ç›¸å½“ã™ã‚‹æ™‚å ±å±€ã«ç™»å ´ã—ã¦ã‚‚らã„ã¾ã™. コンピュータ上ã§æ™‚å ±å±€ã®å½¹å‰²ã‚’ã™ã‚‹ã«ã¯å½ç‰©ãŒç¾ã‚Œãªã„よã†, é›»åç½²åを使ã£ã¦, ãã®æ™‚å ±å±€ãŒæ£ã—ã„ã“ã¨ã‚’示ã›ã‚‹ã‚ˆã†ã«ã—ã¦ãŠãå¿…è¦ãŒã‚ã‚Šã¾ã™.
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