[B! cryptograph] takadoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

takado id:takado

cryptographã«é–¢ã™ã‚‹takadoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (14)

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

${{author_name}}$
{{author_name}}{{created}}
{{ #comment }}{{ comment }}{{ /comment }}
- {{ label }}

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

ã€Œç±³å›½ã‚µã‚¤ãƒãƒ¼è»ã®ç´‹ç« ã€ã«éš ã•ã‚ŒãŸæš—å· | WIRED VISION
å‰ã®è¨˜äº‹ã€€ã€ŽiPhone 4ã€ã‚’ã‚¹ãƒˆãƒãƒœã«ã™ã‚‹ã‚¢ãƒ—ãƒªã€15æ³ãŒé–‹ç™º iPhone 4å—ä¿¡å•é¡Œã€Appleç¤¾ã¯ãªãœæ°—ãŒã¤ã‹ãªã‹ã£ãŸã®ã‹ã€€æ¬¡ã®è¨˜äº‹ ã€Œç±³å›½ã‚µã‚¤ãƒãƒ¼è»ã®ç´‹ç« ã€ã«éš ã•ã‚ŒãŸæš—å· 2010å¹´7æœˆ 8æ—¥ ç¤¾ä¼š ã‚³ãƒ¡ãƒ³ãƒˆï¼š ãƒˆãƒ©ãƒƒã‚¯ãƒãƒƒã‚¯ (0) ãƒ•ã‚£ãƒ¼ãƒ‰ç¤¾ä¼š Noah Shachtman [ç±³å›½ã¯ã€ã‚µã‚¤ãƒãƒ¼ã‚¹ãƒšãƒ¼ã‚¹ã§æˆ¦ã„ã€è»ã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãƒ¼ã‚’ãƒãƒƒã‚«ãƒ¼ãŸã¡ã‹ã‚‰å®ˆã‚‹ã¨ã„ã†ã‚µã‚¤ãƒãƒ¼å¸ä»¤éƒ¨(Cyber Command)ã‚’å‰µè¨ã€ä»Šå¹´10æœˆã‹ã‚‰æœ¬æ ¼ç¨¼åƒã•ã›ã‚ˆã†ã¨ã—ã¦ã„ã‚‹] ã‚µã‚¤ãƒãƒ¼å¸ä»¤éƒ¨ã®æœ¬æ‹ åœ°ã¯ã€ãƒ¡ãƒªãƒ¼ãƒ©ãƒ³ãƒ‰å·žã®ãƒ•ã‚©ãƒ¼ãƒˆãƒ»ãƒŸãƒ¼ãƒ‰é™¸è»åŸºåœ°ã«ã‚ã‚‹[å›½å®¶å®‰å…¨ä¿éšœå±€(NSA)ã‚‚åŒåœ°ã«ã‚ã‚‹]ã€‚ ã“ã“ã¯ã€è»ã®ä¸ã§ã‚‚æœ€ã‚‚ç§˜å¯†ä¸»ç¾©ãŒå¾¹åº•ã•ã‚Œã¦ã„ã‚‹æ–½è¨ã®1ã¤ã ã€‚ã‚µã‚¤ãƒãƒ¼å¸ä»¤éƒ¨ã®ãƒŸãƒƒã‚·ãƒ§ãƒ³ã¯åŸºæœ¬çš„ã«ä¸é€æ˜Žã§ã€è»å†…éƒ¨ã§ã‚‚æ˜Žã‚‰ã‹ã«ã•ã‚Œã¦ã„ãªã„ã€‚ã ãŒã€ã“ã®èª•ç”Ÿé–“ã‚‚ãªã„éƒ¨éšŠã«ã¾ã¤ã‚ã‚‹è¬Žã¯ã‚‚ã†1ã¤ã‚ã‚‹ã€‚ãã‚Œã¯ã‚µã‚¤ãƒãƒ¼å¸ä»¤éƒ¨ã®ç´‹
takado 2010/07/09
ã€Œä¸Šã®ãƒ’ãƒ³ãƒˆã‚’ã‚‚ã¨ã«ã€ã“ã®ã‚³ãƒ¼ãƒ‰ã‚’è§£èªã—ã¦ã¿ã¦ã»ã—ã„ã€‚å›žç”ã¯ã“ã¡ã‚‰ã¸é€ä¿¡ã™ã‚‹ã‹ã€ã‚³ãƒ¡ãƒ³ãƒˆæ¬„ã«æ›¸ãè¾¼ã‚“ã§ãã‚ŒãŸã‚‰ã€ã‚µã‚¤ãƒãƒ¼å¸ä»¤éƒ¨ã®é–¢ä¿‚ç‹ãŒç¢ºèªã—ã¦ãã‚Œã‚‹ã€‚æœ€åˆã®æ£è§£è€…ã«ã¯ã€Wired.comã®è»äº‹ãƒ–ãƒã‚°ã€ŽDanger Roomã€

cryptograph

event
ãƒªãƒ³ã‚¯
Googleã€ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã®æš—å·åŒ–ãƒ„ãƒ¼ãƒ«ã‚ãƒƒãƒˆã€ŒKeyczarã€ã‚’ç™ºè¡¨
ç±³Googleã¯8æœˆ12æ—¥ã€æš—å·åŒ–ãƒ„ãƒ¼ãƒ«ã‚ãƒƒãƒˆã€ŒKeyczarã€ã‚’Apache License 2.0ã®ä¸‹ã§å…¬é–‹ã—ãŸã€‚Google Codeã®ã‚µã‚¤ãƒˆã‹ã‚‰ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã§ãã‚‹ã€‚ Keyczarã¯ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã«æš—å·åŒ–æ©Ÿèƒ½ã‚’çµ„ã¿è¾¼ã‚€ãŸã‚ã®é–‹ç™ºè€…å‘ã‘ãƒ„ãƒ¼ãƒ«ã§ã€ç§˜å¯†éµã¨å…¬é–‹éµã®ä¸¡æ–¹ã«ã‚ˆã‚‹æš—å·åŒ–ã¨èªè¨¼ãŒå¯èƒ½ã€‚Javaã¨Pythonã«å¯¾å¿œã€è¿‘ãC++ã‚‚ã‚µãƒãƒ¼ãƒˆã™ã‚‹ã¨ã—ã¦ã„ã‚‹ã€‚å¾Œæ–¹äº’æ›æ€§ã®æ‡¸å¿µã‚„ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã®å¤‰æ›´ãªã—ã«æš—å·éµã®ãƒãƒ¼ãƒ†ãƒ¼ã‚·ãƒ§ãƒ³ã€å»ƒæ£„ã‚’å®Ÿæ–½ã§ãã‚‹ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç®¡ç†ã‚·ã‚¹ãƒ†ãƒ ã‚’å‚™ãˆã¦ã„ã‚‹ã¨ã„ã†ã€‚
takado 2008/08/19
cryptograph

google

opensource
ãƒªãƒ³ã‚¯
é‡åèª¤ã‚Šè¨‚æ£ç¬¦å·ã¨ãã®å¿œç”¨
è¿‘å¹´é‡ååŠ›å¦ã‚’è¨ˆç®—ãƒ»é€šä¿¡ã«å¿œç”¨ã™ã‚‹è©¦ã¿ãŒç››ã‚“ã«ãªã‚Šã€ ãã®ã‚ˆã†ãªè©¦ã¿ã‚’ç·ç§°ã—ã¦é‡åè¨ˆç®—ãƒ»é‡åé€šä¿¡ã¨å‘¼ã‚“ã§ã„ã¾ã™ã€‚ é‡åè¨ˆç®—ãƒ»é‡åé€šä¿¡ã«ãŠã„ã¦æƒ…å ±ã¯ç‰©ç†ç³»ã®é‡åçŠ¶æ…‹ã«æ ¼ç´ã•ã‚Œã¾ã™ãŒã€ ã“ã®é‡åçŠ¶æ…‹ã¯å‘¨å›²ã®ç’°å¢ƒã‹ã‚‰ã®å½±éŸ¿ã§å®¹æ˜“ã«å¤‰åŒ–ã—ã¦ã—ã¾ã†ã®ã§ è¨ˆç®—ãƒ»é€šä¿¡ã‚’è¨ˆç”»é€šã‚Šã«è¡Œã†ã“ã¨ãŒå›°é›£ã§ã™ã€‚ ã“ã®ã‚ˆã†ãªç‰©ç†ç³»ã®å‘¨å›²ã®ç’°å¢ƒã‹ã‚‰ã®æ‚ªå½±éŸ¿ã‚’ä½Žæ¸›ã™ã‚‹ãŸã‚ã®æ‰‹æ³•ãŒ é‡åèª¤ã‚Šè¨‚æ£ç¬¦å·ã§ã™ã€‚ ã—ã‹ã—ã€é‡åèª¤ã‚Šè¨‚æ£ç¬¦å·ã ã‘ã§ã¯è¨ˆç®—ã®éŽç¨‹è‡ªä½“ã‚’å‘¨å›²ã®ç’°å¢ƒã‹ã‚‰ã®æ‚ªå½±éŸ¿ ã‹ã‚‰å®ˆã‚‹ã“ã¨ã¯ã§ãã¾ã›ã‚“ã€‚é‡åãƒ•ã‚©ãƒ¼ãƒ«ãƒˆãƒˆãƒ¬ãƒ©ãƒ³ãƒˆè¨ˆç®—ã¯é‡åèª¤ã‚Šè¨‚æ£ç¬¦å·ã‚’ ç”¨ã„ã¦è¨ˆç®—éŽç¨‹ã‚’å®ˆã‚‹ãŸã‚ã®æ‰‹æ³•ã§ã™ã€‚ ä¸€æ–¹é€šä¿¡ã«ãŠã„ã¦ãƒ™ãƒ«çŠ¶æ…‹(ã¾ãŸã¯EPRå¯¾)ã¨å‘¼ã°ã‚Œã‚‹äºŒã¤ã®ç‰©ç†åª’ä½“ã«ã¾ãŸãŒã‚‹ é‡ååŠ›å¦ç‰¹æœ‰ã®çŠ¶æ…‹ã‚’ç©ºé–“çš„ã«é›¢ã‚ŒãŸäºŒè€…é–“ã§å…±æœ‰ã™ã‚‹å¿…è¦ãŒã‚ˆãã‚ã‚Šã¾ã™ã€‚ ãƒ™ãƒ«çŠ¶æ…‹ã«ã‚ã‚‹äºŒã¤ã®ç‰©ç†åª’ä½“ã®ç‰‡æ–¹ã‚’ä¸€æ–¹ã‹ã‚‰ä»–æ–¹ã«é€ã‚‹ã¨ã€ å¤§æŠµã®å ´åˆé€ã£ã¦ã„ã‚‹é€”ä¸ã§çŠ¶
takado 2008/07/12
science

cryptograph
ãƒªãƒ³ã‚¯
https://www.cipheron.net/
takado 2007/06/05
sharing

cryptograph

web2.0
ãƒªãƒ³ã‚¯
http://www.technobahn.com/cgi-bin/news/read2?f=200705031914&page=2
takado 2007/05/04
cryptograph

history
ãƒªãƒ³ã‚¯
ãƒ¡ãƒ¼ãƒ«ã®ãƒ‘ã‚¹ãƒ¯ãƒ¼ãƒ‰æš—å·ç ´ã£ãŸâ€¦ï¼¡ï¼°ï¼¯ï¼°è¦æ ¼ã‚’è§£èª : çµŒæ¸ˆãƒ‹ãƒ¥ãƒ¼ã‚¹ : çµŒæ¸ˆãƒ»ãƒžãƒãƒ¼ : YOMIURI ONLINEï¼ˆèªå£²æ–°èžï¼‰
takado 2007/04/19
security

cryptograph
ãƒªãƒ³ã‚¯
http://cipher.fc2web.com/main.html
takado 2007/02/14
ã‚¿ã‚¤ãƒ ã‚ãƒ©ãƒ¼

game

cryptograph
ãƒªãƒ³ã‚¯
ç‰¹åˆ¥ãªè£…ç½®ã‚’ä½¿ã‚ãšã«å®‰å…¨ã‚’ä¿è¨¼ã™ã‚‹é‡åæš—å·é€šä¿¡ã‚·ã‚¹ãƒ†ãƒ ï¼ŒNECã¨JSTãŒé–‹ç™º
ç§‘å¦æŠ€è¡“æŒ¯èˆˆæ©Ÿæ§‹ï¼ˆJSTï¼‰ã¨NECã¯2007å¹´1æœˆ17æ—¥ï¼Œäº‹å®Ÿä¸Šç›—è´ãŒä¸å¯èƒ½ãªé‡åæš—å·é€šä¿¡ã‚’ã‚½ãƒ•ãƒˆã‚¦ã‚¨ã‚¢æŠ€è¡“ã«ã‚ˆã£ã¦å®Ÿç¾ã™ã‚‹ã‚·ã‚¹ãƒ†ãƒ ã‚’é–‹ç™ºã—ãŸã¨ç™ºè¡¨ã—ãŸã€‚ã‚½ãƒ•ãƒˆã‚¦ã‚¨ã‚¢æŠ€è¡“ã«ã‚ˆã£ã¦ï¼Œå˜ä¸€å…‰åã‚„è±Šå¯Œãªè¨ˆç®—æ©Ÿè³‡æºã¨ã„ã£ãŸé‡åæš—å·é€šä¿¡ã«ã¨ã£ã¦ç†æƒ³çš„ãªãƒãƒ¼ãƒ‰ã‚¦ã‚¨ã‚¢ç’°å¢ƒã‚’å¿…è¦ã¨ã›ãšã«å®‰å…¨æ€§ã‚’ç¢ºä¿ã§ãã‚‹ã¨ã„ã†ã€‚ä¼æ¥ã®ä¸€èˆ¬çš„ãªã‚ªãƒ•ã‚£ã‚¹ç’°å¢ƒã§å®Ÿç”¨ã•ã‚Œã‚‹ã“ã¨ã‚’ç‹™ã†ã€‚ ãã‚‚ãã‚‚é‡åæš—å·é€šä¿¡ã¯ï¼Œå…‰ãƒ•ã‚¡ã‚¤ãƒã«å…‰ã®æ§‹æˆå˜ä½ã®ä¸€ã¤ã§ã‚ã‚‹å…‰åã‚’æµã™ã“ã¨ã§ï¼Œæƒ…å ±ã®é€ä¿¡è€…ã¨å—ä¿¡è€…ã®é–“ã§ç§˜å¯†ã‚’å…±æœ‰ã™ã‚‹ã¨ã„ã†ã‚‚ã®ã€‚ä¸ç¢ºå®šæ€§åŽŸç†ã¨å‘¼ã¶ç‰©ç†ç¾è±¡ã‚’æ ¹æ‹ ã¨ã™ã‚‹ã€‚ç›®çš„ã¯ï¼Œãƒ‡ãƒ¼ã‚¿æš—å·é€šä¿¡ã«ä½¿ã†ãŸã‚ã®æš—å·éµã‚’2è€…é–“ã§ä»–äººã«æ¼ãˆã„ã™ã‚‹ã“ã¨ãªãå®‰å…¨ã«å…±æœ‰ã™ã‚‹ã“ã¨ã€‚é‡åæš—å·é€šä¿¡ã«ã‚ˆã£ã¦å®‰å…¨ã«å…±æœ‰ã—ãŸæš—å·éµã‚’ä½¿ã£ã¦ï¼Œæ—¢å˜ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä¸Šã§ãƒ‡ãƒ¼ã‚¿æš—å·åŒ–é€šä¿¡ã‚’å®Ÿæ–½ã™ã‚‹ã€‚ç›®çš„ã¯æ—¢å˜ã®éµäº¤æ›ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã¨åŒã˜ã ãŒï¼Œè¨ˆç®—æ©ŸãŒé«˜åº¦åŒ–ã—ã¦ã‚‚å®‰å…¨æ€§ãŒè½ã¡ãªã„ã¨ã„ã†ç‰¹
takado 2007/01/18
ã€Œç§˜å¯†å¢—å¹…ã¨å‘¼ã¶éŽç¨‹ã«ãŠã„ã¦ï¼Œå…‰åã®å—ä¿¡è€…ãŒé€ä¿¡è€…ã‹ã‚‰å¾—ãŸéµã®æƒ…å ±ã‚’ã©ã‚Œã ã‘æ¨ã¦ã‚Œã°ã‚ˆã„ã‹ã‚’è‡ªå‹•çš„ã«è¨å®šã™ã‚‹ã€

cryptograph

science

physics
ãƒªãƒ³ã‚¯
RSAç½²åã®ä¸å‘³ã„å®Ÿè£…ã®è©±ã‚‰ã—ã„. - 186 @ hatenablog
[é¡] ã—ã£ã½ã®ã•ãã£ã¡ã‚‡ 2006/08/29 æš—å·é–¢é€£ã‚ˆã‚ŠBleichenbacher's RSA signature forgery ASN.1based on implementation errorã‚’èªã‚€. ãã®ã¾ã¾è’å·æ°ãŒè§£èª¬ã™ã‚‹ã‚“ã‹ãªãã¨æ€ã£ã¦ã„ãŸã‚‰ ãµãŸã¤ç›®ã®è¨˜äº‹ã¯ IETF OpenPGP WG ã®ML ã‹ã‚‰ã®è©±é¡Œã€‚ RSA ç½²åã«ãŠã„ã¦ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã®å®Ÿè£…ã®ä»•æ–¹ã«ã‚ˆã£ã¦ã¯ç°¡å˜ã«å½è£…ãŒã§ãã¦ã—ã¾ã†ã¨ã„ã†ã‚‚ã®ã‚‰ã—ã„ãŒï¼Œè‹±èªžä¸å¾—æ‰‹ãªã®ã§ã‚ˆãåˆ†ã‹ã‚‰ãªã„ã€‚ ã¨ã‚ã£ã¦ï¼ˆï¼›Â´Ð”ï½€ï¼‰ã¨ãªã£ãŸã®ã§é©å½“ã«è§£èª¬. SCIS2007ã§æ”¹è‰¯ã•ã‚ŒãŸã‚¢ã‚¿ãƒƒã‚¯ãŒå‡ºã¾ã—ãŸ. Bleichenbacherã®æ”»æ’ƒæ³•ã§ã¯e=3ã‹ã¤ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ãŒ3ã®å€æ•° (k=3072) ã®å ´åˆã‚’è€ƒãˆã¦ã„ã¾ã™. e=17, 65537ã®å ´åˆã‚„, ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ãŒ3ã®å€æ•°ã§ãªã„å ´åˆ (k=1024, 2048,
takado 2006/09/14
cryptograph
ãƒªãƒ³ã‚¯
Lecture Slides and Video Archives
takado 2006/06/05
æš—å·å¦ã®è¬›ç¾©ãƒŽãƒ¼ãƒˆï¼Žãƒ¯ã‚·ãƒ³ãƒˆãƒ³å¤§å¦ï¼Ž

cryptograph

education

academic

presentation
ãƒªãƒ³ã‚¯
[ã‚’] Blowfish ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ
Blowfish ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ 2006-06-02-3 [Algorithm] Blowfish ã¯ãƒ–ãƒ«ãƒ¼ã‚¹ãƒ»ã‚·ãƒ¥ãƒŠã‚¤ã‚¢ãƒ¼ï¼ˆBruce Schneierï¼‰ã«ã‚ˆã‚‹æš—å·åŒ– ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã€‚ç‰¹è¨±ã¯å–ã£ã¦ãªã„ã¨ã®ã“ã¨ã§ã€è‡ªç”±ã«ä½¿ãˆã¦å®‰å¿ƒã€‚ Dr. Dobb's Journal ã§ã®è§£èª¬(1995)ãŒåˆ†ã‹ã‚Šã‚„ã™ã„ã§ã™ã€‚ http://www.schneier.com/paper-blowfish-oneyear.html P-array ã¨ S-boxes ã®åˆæœŸåŒ–ã«ä½¿ã£ã¦ã„ã‚‹ã®ã¯ã€å††å‘¨çŽ‡ã‚’16é€²æ•°ã§ ã‚ã‚‰ã‚ã—ãŸã‚‚ã®ã€‚ è§£èª¬ã§ã¯ "the hexadecimal digits of pi(less the initial 3)" ã¨ èª¬æ˜ŽãŒã‚ã‚Šã¾ã™ã€‚ ä¸‹è¨˜URLã«16é€²è¡¨è¨˜ãŒã‚ã‚Šã¾ã—ãŸã€‚ http://www.super-computing.org/pi-hexa_current
takado 2006/06/02
ç‰¹è¨±ãƒ•ãƒªãƒ¼ã®æš—å·ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã€Blowfishã®è§£èª¬ã¨å®Ÿè£…

algorithm

cryptograph

perl

security
ãƒªãƒ³ã‚¯
ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®çµ‚äº†æ—¥ã‚’2020å¹´1æœˆ31æ—¥(é‡‘)ã«æ±ºå®šã—ã¾ã—ãŸ - ã¯ã¦ãªã®å‘ŠçŸ¥
ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®çµ‚äº†æ—¥ã‚’2020å¹´1æœˆ31æ—¥(é‡‘)ã«æ±ºå®šã—ã¾ã—ãŸ ä»¥ä¸‹ã®ã‚¨ãƒ³ãƒˆãƒªã®é€šã‚Šã€ä»Šå¹´æœ«ã‚’ç›®å‡¦ã«ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã‚’çµ‚äº†äºˆå®šã§ã‚ã‚‹æ—¨ã‚’ãŠçŸ¥ã‚‰ã›ã—ã¦ãŠã‚Šã¾ã—ãŸã€‚ 2019å¹´æœ«ã‚’ç›®å‡¦ã«ã€ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®æä¾›ã‚’çµ‚äº†ã™ã‚‹äºˆå®šã§ã™ - ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—æ—¥è¨˜ ã“ã®ãŸã³ã€æ£å¼ã«çµ‚äº†æ—¥ã‚’æ±ºå®šã„ãŸã—ã¾ã—ãŸã®ã§ã€ä»¥ä¸‹ã®é€šã‚Šã”ç¢ºèªãã ã•ã„ã€‚ çµ‚äº†æ—¥: 2020å¹´1æœˆ31æ—¥(é‡‘) ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆå¸Œæœ›ç”³è«‹æœŸé™:2020å¹´1æœˆ31æ—¥(é‡‘) çµ‚äº†æ—¥ä»¥é™ã¯ã€ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®é–²è¦§ãŠã‚ˆã³æŠ•ç¨¿ã¯è¡Œãˆã¾ã›ã‚“ã€‚æ—¥è¨˜ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆãŒå¿…è¦ãªæ–¹ã¯ä»¥ä¸‹ã®è¨˜äº‹ã«ã—ãŸãŒã£ã¦æ‰‹ç¶šãã‚’ã—ã¦ãã ã•ã„ã€‚ ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã«æŠ•ç¨¿ã•ã‚ŒãŸæ—¥è¨˜ãƒ‡ãƒ¼ã‚¿ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆã«ã¤ã„ã¦ - ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—æ—¥è¨˜ ã”åˆ©ç”¨ã®ã¿ãªã•ã¾ã«ã¯ã”è¿·æƒ‘ã‚’ãŠã‹ã‘ã„ãŸã—ã¾ã™ãŒã€ã©ã†ãžã‚ˆã‚ã—ããŠé¡˜ã„ã„ãŸã—ã¾ã™ã€‚ 2020-06-25 è¿½è¨˜ ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—æ—¥è¨˜ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆãƒ‡ãƒ¼ã‚¿ã¯2020å¹´2æœˆ28
takado 2006/05/13
ã‚ˆãã¾ã¨ã¾ã£ã¦ã‚‹

cryptograph

zkip
ãƒªãƒ³ã‚¯
http://www.madchat.org/crypto/papers/alibaba.pdf
takado 2006/05/13
ç«¥è©±å½¢å¼ã§ã‚¼ãƒçŸ¥è˜è¨¼æ˜Žã‚’è§£èª¬ã€‚ã‚¢ãƒªãƒãƒã‚‚ï¼”ï¼æ—¥ã‚‚çµŒã¤å‰ã«æ°—ã¥ã‘ã‚ˆï½—ï½—ï½—ï½—ï½—ï½—

security

authorization

zkip

cryptograph
ãƒªãƒ³ã‚¯
ã€Œé€Ÿåº¦8ãƒŽãƒƒãƒˆã€æ•µè¿½è·¡ä¸ã€ï¼šåˆ†æ•£ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã§è§£èªã•ã‚ŒãŸEnigmaã®æš—å· - CNET Japan
ã‚ã‚‹åˆ†æ•£ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆãŒã€ç¬¬2æ¬¡ä¸–ç•Œå¤§æˆ¦ä¸ã«ãƒ‰ã‚¤ãƒ„è»ã®æš—å·æ©Ÿã€ŒEnigmaã€ã§æš—å·åŒ–ã•ã‚Œã€ã“ã‚Œã¾ã§æœªè§£èªã ã£ãŸãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã®è§£èªã«ã€çµ‚æˆ¦å¾Œ60å¹´ã‚’çµŒã¦æˆåŠŸã—ãŸã€‚ ã“ã®M4 Projectã¯ã€Enigmaã§ä½œæˆã—ãŸ3ã¤ã®åŽŸæ–‡ã‚’è§£èªã™ã‚‹ç›®çš„ã§1æœˆä¸Šæ—¬ã«å§‹ã¾ã£ãŸã€‚ã“ã‚Œã‚‰ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã¯ã€1942å¹´ã«å‚å—ã—ãŸã‚‚ã®ã®ã€é€£åˆè»ãŒè§£èªã—ã¦ã„ãªã‹ã£ãŸã¨ã•ã‚Œã‚‹ã€‚ ã“ã‚Œã‚‰ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã¯ã€4ãƒãƒ¼ã‚¿ãƒ¼å¼ã®Enigmaã‚’ä½¿ã£ã¦æš—å·åŒ–ã•ã‚Œã¦ã„ã‚‹ã€‚è†¨å¤§ãªæ•°ã®çµ„ã¿åˆã‚ã›ï¼ˆ2Ã—10ã®145ä¹—ï¼‰ã‚’è¨å®šã—ã€ãã‚Œãžã‚ŒãŒãƒ†ã‚ã‚¹ãƒˆãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’ç•°ãªã‚‹å½¢ã§æš—å·åŒ–ã§ãã‚‹ãŸã‚ã€ãƒ‰ã‚¤ãƒ„ã§ã¯ã€ã“ã®æ©Ÿç¨®ã§ä½œæˆã•ã‚ŒãŸæš—å·æ–‡ã¯è§£èªä¸å¯èƒ½ã ã¨è€ƒãˆã‚‰ã‚Œã¦ã„ãŸã€‚ è‹±Bl etchley Parkç ”ç©¶æ‰€ã®æš—å·æŠ€è¡“è€…ãŸã¡ã¯ã€Alan TuringæŒ‡æ®ã®ã‚‚ã¨åˆæœŸã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ã‚’é–‹ç™ºã—ã€åŒæ™‚ã«è¨å®šå¯èƒ½ãªæ•°ã‚’åŠ›ä½œæ¥ã§çµžã‚Šè¾¼ã‚€ã“ã¨ã«ã‚ˆã‚Šã€Enigmaã‚’ä½•ã¨ã‹
takado 2006/02/28
åˆ†æ•£ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã®åŠ›æŠ¼ã—ã§Enigmaè§£èª

security

cryptograph
ãƒªãƒ³ã‚¯
1