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MFAãã©ã®ããã«èšå®ãããŠããããæ»æãããããŠãŒã¶ãŒãããã³ããçåŒŸã§æ»æããããäžè«ãæ¥è ãæ»æãããã«ããããããè åšåœäºè ã¯IDã©ã€ããµã€ã¯ã«ã®åŒ±ç¹ãæ»æããæ¹æ³ãèŠã€ããããŒã¿ãæµåºããããªãMFAãæåã®é²åŸ¡ç·ã§ãªããã°ãªããªãããæåŸã®é²åŸ¡ç·ã§ãã£ãŠã¯ãªããªãããæããã«ããã.
ããããã»ãã¥ãªãã£ã»ããŒã ã«ãšã£ãŠã®äžå¿çãªæèšã§ãããMFAã¯äŸç¶ãšããŠéèŠã§ããããããåºç¯ãªã¢ã€ãã³ãã£ãã£ã»ã»ãã¥ãªãã£æŠç¥ã®äžéšãšããŠæã广çã§ããã.
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MFAã®ç²åŽãšè¿ éãªçæ
äžè¬çãªæŠè¡ã®ã²ãšã€ã¯ ãMFAç²ãã, ããã³ããããã³ã°ãšãåŒã°ãããæ»æè ã¯ããŠãŒã¶ãŒã誀ã£ãŠããããã¯ãã©ã¹ãã¬ãŒã·ã§ã³ãããæ¿èªèŠæ±ãå諟ãããŸã§ãç¹°ãè¿ãæ¿èªèŠæ±ãéä¿¡ããããã®æ¹æ³ã¯ããŠãŒã¶ãŒãæ°ãåãããŠããããæ¥ãã§ããããããã³ãããæ£åœãªãã®ãã©ããäžç¢ºããªå Žåã«æã广çã§ããã.
ãããããŠãŒã¶ãŒæè²ãäŸç¶ãšããŠéèŠã§ããçç±ã®äžã€ã§ãããäºæãã¬ããã³ããã¯ãæ¥åžžçãªãã°ã€ã³ã»ã¹ãããã§ã¯ãªããèŠåãµã€ã³ãšããŠæ±ãããã¹ãã§ããããšãã人ã ã¯ç¥ãå¿ èŠãããã.
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MFA ã¯ããã®å®è£ ã«ãã£ãŠã®ã¿åŒ·ããªãã管çè ããããªã·ãŒãç»é²ããã©ãŒã«ããã¯æ¹æ³ãäŸå€åŠçããŸãã¯ã¹ãããã¢ããèŠä»¶ã« ã®ã£ãããæ®ããŠããã°ãæ»æè ã¯ãããæ¢ãã ãããå€ãã®å Žåã匱ç¹ã¯ãã¡ã¯ã¿ãŒãã®ãã®ã§ã¯ãããŸããããã¡ã¯ã¿ãŒã®å°å ¥æ¹æ³ã§ããã.
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æ»æè ã¯ãå éšã·ã¹ãã ã«ã¢ã¯ã»ã¹ã§ãããµãã©ã€ã€ãŒãè«è² æ¥è ãããŒãããŒãæšçã«ããããµãŒãããŒãã£ã® ID ãéå°ã«ç¹æš©åãããŠããããç£èŠãäžååã§ãã£ãããã¬ããã³ ã¹ã匱ãã£ãããããšã匷åãªç®¡çã倱æããå¯èœæ§ããããã¢ã€ãã³ãã£ãã£ã®ãªã¹ã¯ã¯åŸæ¥å¡ã ãã«ãšã©ãŸããªãã.
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ãã§ã€ã«ãªãŒãã³ãã·ã¹ãã ãšã¯ãæšæºçãªæäœå¶åŸ¡ãæ©èœããªãå Žåã«ãããã©ã«ãã§ãªãŒãã³ã«ãªãã·ã¹ãã ã§ããã. ãã®ååã¯ç©ççãªã»ãã¥ãªãã£ã«ãããŠã¯çã«ããªã£ãŠããã ããžã¿ã«ã»ã¢ã¯ã»ã¹ã®å®å šç¢ºä¿ã«é¢ããŠã¯ãæ·±å»ãªãªã¹ã¯ãããããã.
ã·ã¹ãã ãã¯ã©ãŠãããŒã¹ã®MFAãµãŒãã¹ãšã®æ¥è§Šã倱ããããã©ã«ãã§ã¢ã¯ã»ã¹ãèš±å¯ãããšãæ»æè ã¯ãã®ç¶æ ãæªçšããŠMFAãå®å šã«ãã€ãã¹ããããšãã§ããã.
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èªèšŒã¯ ID ã»ãã¥ãªãã£ã® 1 éšã«ãããªãã. è åšè¡çºè ã¯ãID ã«ã¯ ID ã管çãã以äžã®ãã®ãããããšãç¥ã£ãŠããã. 圌ãã¯ãããããžã§ãã³ã°ããªã«ããªãå§ä»»ç®¡çã第äžè ã¢ã¯ã»ã¹ããšã³ã¿ã€ãã«ã¡ã³ãã»ã¬ããã³ã¹ã®åŒ±ç¹ãæ¢ãã.
ãããã®æ»æããåŸãããæå€§ã®æèšã¯ãMFAã倱æãããšããããšã§ã¯ãªããæèšã¯ãID é²åŸ¡ã¯ãã°ã€ã³ç»é¢ãè¶ ããŠæ¡åŒµããå¿ èŠããããšããããšã§ããã.
çµç¹ãèªèšŒã€ãã³ãã ãã«æ³šç®ãããšãä»ã®äŸ¡å€ã®é«ãé åãããåºãã«ãªããå埩ã¯ãŒã¯ãããŒãããªã·ãŒã®äŸå€ããªãã©ã€ã³ã»ã¢ã¯ã»ã¹ãç¹æš©ããŒã«ãéå°ãªãšã³ã¿ã€ãã«ã¡ã³ããªã©ããã¹ãŠãæ»æçµè·¯ã«ãªãåŸãã.
äŸãã°ãã¢ã¯ã»ã¹ãããããžã§ãã³ã°ããã ãã§ã¯ååã§ã¯ãªããå¿ èŠã ãšããããã©ããããã®æéãïŒã¢ã¯ã»ã¹ãæäŸããããã®ãããããšãååã ã£ãã®ãïŒãããã©ããã£ãŠç¥ãã®ãïŒãããã¯ã䟵害ãªã¹ã¯ã«çŽæ¥åœ±é¿ããå®è·µçãªã»ãã¥ãªãã£äžã®çåã§ããã.
MFAã®ãã€ãã¹ã»ãªã¹ã¯ãäœæžãããçµç¹ã¯ãIDã©ã€ããµã€ã¯ã«å šäœã«ããã£ãŠãã匷åãªå¯èŠæ§ãå¿ èŠãšãããããã¯ã誰ããã°ã€ã³ã§ãããã ãã§ãªãããªãã¢ã¯ã»ã¹ã§ããã®ããäœã«ã¢ã¯ã»ã¹ã§ããã®ãããããŠãããã®æš©éãæéãšãšãã«ã©ã®ããã«å€åããã®ããçè§£ããããšãæå³ããã.
æåã®é²åŸ¡ãšã¯ãåäžã®èŠå ãåäžã®è£œåã§ã¯ãªããæ»æè ãé Œãã«ããŠããã®ã£ãããåããéå±€çãªã¢ãããŒãã§ããã.
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ãã¹ãŠã®èªèšŒæ¹æ³ãåãã¬ãã«ã®ä¿è·ãæäŸããããã§ã¯ãªãã. ã¢ããã«ã®Face IDã®ãããªãªãã·ã§ã³ãã¢ãã€ã«ãŠãŒã¶ãŒã«ãšã£ãŠã»ãŒãŠããã¿ã¹ã«ãªã£ãŠãããããçäœèªèšŒã¯ãã¹ã¯ãŒããªãã®èªèšŒã®äžè¬çãªåœ¢æ ã ããããã ãã§ã¯ãªãããšã¯ç¢ºãã ã. çµç¹ã¯ããã£ãã·ã³ã°ããªãã¬ã€ããŒã¹ã®æ»æãžã®é²åºãæžããããšãã§ããããã匷åãªãªãã·ã§ã³ãè©äŸ¡ããå¿ èŠããããŸãã以äžããµããŒãããããŸããŸãªãã¹ã¯ãŒãã¬ã¹ã»ãœãªã¥ãŒã·ã§ã³ãåªå ããã ãã¹ãŠã®ãŠãŒã¶ãŒããã¹ãŠã®ç°å¢ããã¹ãŠã®æé.Â
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ããã·ã¥ã»ããŒã¹ã® MFA ã¯äŸ¿å©ã ãããŠãŒã¶ãäºæãã¬ããã³ããããã®å Žã§è§£éããããšãæåŸ ãããå Žåã䟿å©ãã¯ãªã¹ã¯ãçãå¯èœæ§ããããèªèšŒãããŒãããã¬ãã·ã£ãŒã®äžã§ãŠãŒã¶ã®å€æã«äŸåããã°ããã»ã©ãããè匱ã«ãªãå¯èœæ§ãããã.
ãã®ãããçµç¹ã¯ããã匷åãªèªèšŒãšãã»ãã¥ãªãã£èªèãé©å¿çãªããªã·ãŒå¶åŸ¡ãäžå¯©ãªæ¿èªãã¿ãŒã³ã®ç£èŠãçµã¿åãããå¿ èŠãããã.
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ãã¹ã¯ãŒãã¬ã¹èªèšŒ ã¯ããã£ãã·ã³ã°ãããããèªèšŒæ å ±ãè匱ãªãã°ã€ã³ã»ãããŒããçµç¹ãé ãããããšã§ãMFA ãã€ãã¹ã»ãªã¹ã¯ã軜æžããã®ã«åœ¹ç«ã€ã.
ãããçäœèªèšŒã§ããããšãªããããšã, FIDO2, QRã³ãŒããBLEãNFCããã®ä»ã®ãã¹ã¯ãŒãã¬ã¹ã»ãã©ãŒã ãã¡ã¯ã¿ãŒãªã©ãããŸããŸãªç°å¢ãã¢ããªã±ãŒã·ã§ã³ããŠãŒã¶ãŒã°ã«ãŒããæ··åšããŠããŠã察å¿ã§ãããœãªã¥ãŒã·ã§ã³ã䜿çšããå¿ èŠãããã.
ãã¹ã¯ãŒãã¬ã¹ã¯å©äŸ¿æ§ã ãã§ã¯ãªãããã¹ã¯ãŒããžã®äŸåãæžããããšãã§ããããã¹ã¯ãŒãã¯ãIDæ»æã§æãäžè¬çã«æªçšããããšã³ããªãŒã»ãã€ã³ãã®1ã€ã§ããããšã«å€ããã¯ãªãã.
OTP èªèšŒãš FIDO èªèšŒã«ã¯ãããããç¬èªã®å©ç¹ããããææ°ã®ãã©ãŠã¶ããŒã¹ã®èªèšŒã«é©ããŠãããã®ãããã°ãã¬ã¬ã·ãŒç°å¢ããã€ããªããç°å¢ãå¹ åºãã«ããŒãããã®ããããããããOTP ãš FIDO ãæ¯èŒããå Žåãæè¯ã®çãã¯éåžžãANDãã§ããå€ãã®çµç¹ã¯ãæè»æ§ãšåŒ·åºãªä¿èšŒã®äž¡æ¹ãå¿ èŠãšããŠããã.
MFAã¯ããªãã®æåã®é²è¡ç·ã§ãªããã°ãªããªãããæåŸã®é²è¡ç·ã§ã¯ãªãã. MFA ãã€ãã¹ã®ãªã¹ã¯ãäœæžããããã«ãçµç¹ã¯ãã匷åãªèªèšŒãªãã·ã§ã³ãåŒŸåæ§ã®ããã¢ãŒãã ã¯ãã£ãããã³ ID ã©ã€ããµã€ã¯ã«å šäœã«ãããããè¯ãå¯èŠæ§ãå¿ èŠãšããŠããã.
RSA ID Plusã䜿çšããããšã§ãäŒæ¥ã¯ãã¹ã¯ãŒãã¬ã¹èªèšŒãšãã€ããªããèªèšŒããµããŒãããææ°ç°å¢ãšã¬ã¬ã·ãŒç°å¢ã®ä¿è·ã匷åããããã¬ãžãªãšã³ããªIDã»ãã¥ãªãã£æŠç¥ãæ§ç¯ã§ããŸãã. RSA ID Plusã®äœ¿ç𿹿³ MFAãåç¬ã§æ©èœããå Žåãæ»æè ãçãéãé²åŸ¡ããã®ã«åœ¹ç«ã€ã.
MFA ã¯ãããåºç¯ãªã¢ã€ãã³ãã£ãã£ã»ã»ãã¥ãªãã£æŠç¥ã®äžç°ãšããŠå°å ¥ãããå Žåã«ãæã广çã«æ©èœããéèŠãªã»ãã¥ãªãã£ã»ã³ã³ãããŒã«ã§ãããŠã§ãããŒã§ã¯ãæ»æè ãMFAãè¿åããäžè¬çãªæ¹æ³ãšããŠãããã³ããç匟ãè匱ãªèšå®ããµãŒãããŒãã£ã®æŽé²ãIDã©ã€ããµã€ã¯ã«å šäœã®ã®ã£ãããªã©ã玹ä»ããŸããã, æ»æã®è§£åMFAã®æ æ¯çè¡°, ãã®çµæãåå è ãã¡ããäžå¯§ãªãã©ããŒã¢ããã®è³ªåãå¯ããããã以äžã®FAQã¯ããã®äŒè©±ããçãŸããæãéèŠãªè³ªåã®ããã€ããåãäžããŠããã.
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