NFCとしゃべってみよう

/'$ͱ͠Ό΂ͬͯΈΑ͏ !ηΩϡϦςΟϛχΩϟϯϓ๺ւಓ ߹ಉձࣾ(FPSFQVCMJD+BQBOҰൠࣾஂ๏ਓ-0$"- ౻ా༏و

ࣗݾ঺հ w ౻ా༏و !BSVOFLP w ॴଐ w ߹ಉձࣾ(FPSFQVCMJD+BQBO w
Ұൠࣾஂ๏ਓ-0$"- w ਆށࡏॅࣨའग़਎ w ೥ηΩϡϦςΟΩϟϯϓશࠃେձमྃ w ʙϛχΩϟϯϓ๺ւಓࢀՃ w ೥౓4FD)BDLࢥࡧۦಈίʔε w ϚΠφϯόʔΧʔυܳਓ

ࣗݾ঺հ w ձࣾͰԿͯ͠Δʁ w "84ͰͷΠϯϑϥ࡞੒ w 1ZUIPOͰͷ"1*αʔόʔ࡞੒ w 3FBDU΍7VFΛ࢖ͬͨϑϩϯτΤϯυͷ࡞੒ w
झຯ w ετϦʔτϐΞϊΊ͙Γ w ਆށʹ͸ແବʹՕॴ͙Β͍͋ͬͨΓ͢Δ w ࡳຈͷϊϧϕαʹ΋͋ΔΒ͘͠ࡢ೔ߦ͖ͬͯͨ

ࠓ೔΍Δ͜ͱ w /'$ͷ࢓༷ʹ͍ͭͯͷ֓આ w 'FMJDBͷ࢓༷Λ֬ೝͭͭ͠ύʔεࡁΈͷσʔλΛಡΈग़ͯ͠ΈΔ w 'FMJDBͷίϚϯυΛൃߦͯ͠ະύʔεͷੜσʔλΛಡΜͰΈΔ w 'FMJDBͷσʔλΛϦόʔεΤϯδχΞϦϯάͯ͠ΈΔ

/'$ͬͯԿʁ

/'$ͬͯԿͷ͜ͱʁ w /FBS'JFME$PNNVOJDBUJPO ۙڑ཭ແઢ௨৴ w ਺DNʙ਺N͙Β͍ͷൣғͰి೾ͳͲΛ༻͍ͯ௨৴͢Δٕज़ w 3'*% 3BEJP'SFRVFODZ*%FOUJpFS
ͷ࣮૷ͷͻͱͭ w /'$͡Όͳ͍3'*%ɿϢχΫϩͷແਓϨδ༻ͷ3'*% w /'$'PSVNͰ࢓༷Λࡦఆ

/'$ͷϞʔυ w /'$ػث ϦʔμεϚϗ ʹ͸࣍ͷͭͷϞʔυ͕͋Δ w λά Χʔυ ͷಡΈॻ͖ ඞਢػೳ
w 11௨৴ ඞਢػೳ w ػثಉ࢜Ͱ௚઀௨৴͢Δػೳ w ΧʔυΤϛϡϨʔγϣϯ Φϓγϣϯػೳ w /'$ΧʔυͷΑ͏ʹৼΔ෣͏ػೳ

/'$ͷ௨৴ن֨ w /'$ʹ͸ͭͷ௨৴ن͕֨͋ΓɺͦΕͧΕมௐํ͕ࣜҟͳΔ w /'$ػث͸ɺ͜ΕΒશͯͷن֨ͱ௨৴Ͱ͖ͳ͚Ε͹ͳΒͳ͍ w 5ZQF"͍ΘΏΔ.JGBSFɻ"NJJCP΍UBTQPͳͲ w 5ZQF#ϚΠφϯόʔΧʔυ΍ӡస໔ڐূͳͲ w
5ZQF'͍ΘΏΔ'FMJ$Bɻަ௨ܥ*$΍ܾࡁܥ*$ͳͲ

/'$λάͷن֨ w /'$λά͸/%&' /'$%BUB&YDIBOHF'PSNBU ʹଇͬͯ௨৴͢Δ w /%&'͸ύέοτ΍ίϚϯυʹؔ͢Δϓϩτίϧͷن֨ w 5ZQF5PQB[ ࠃ಺Ͱ͸ݟͨ͜ͱͳ͍
w 5ZQF.JGBSF6MUSBMJHIU "NJJCP w 5ZQF'FMJ$B ަ௨ܥ*$OBOBDP w 5ZQF"*40" UBTQP7JTBQBZ8BWF w 5ZQF#*40# ϚΠφϯόʔΧʔυύεϙʔτӡస໔ڐূ

͜͜·Ͱͷ·ͱΊ w /'$͸3'*%ͷҰछͰɺۙڑ཭ແઢ௨৴ͷͨΊͷن֨ w /'$ػث͸ͭͷϞʔυΛαϙʔτ͢Δ w /'$ʹ͸छྨͷΞϧϑΝϕοτͰද͞ΕΔ௨৴ن͕֨͋Δ w /'$λάʹ͸छྨͷ਺ࣈͰද͞ΕΔϓϩτίϧͷن͕֨͋Δ w
͜͜·ͰΨοςϯ͍͚ͯͨͩ͠·ͨ͠Ͱ͠ΐ͏͔ʁ ㅟ ㅟ

'FMJ$BͷσʔλΛ೷͍ͯΈΔ

͜Ε͔Β΍Δ͜ͱ w /'$5ZQF'ن֨Ͱ͋Δ'FMJ$Bͱ௨৴ͯ͠ w /'$5ZQFͷύέοτΛ΍ΓͱΓͭͭ͠ w 'FMJ$Bͷத਎ΛಡΜͰ w ͲΜͳσʔλ͕ೖ͍ͬͯΔ͔ߟ࡯ͯ͠ΈΔ

४උ w ഑෍ͨ͠Ծ૝ϚγϯΛىಈ͍ͯͩ͘͠͞ w ͏·͘ىಈ͠ͳ͔ͬͨΒڭ͍͑ͯͩ͘͞ w ύεϫʔυ͸ʮOGDʯͰ͢ w μ΢ϯϩʔυΛ๨Εͨਓ͸64#ϝϞϦͰ഑෍͢ΔͷͰ͓஌Β͍ͤͩ͘͞ w
'FMJ$Bن֨ͷΧʔυΛ༻ҙ͍ͯͩ͘͠͞ w ๨Εͨํ͸ԕྀͳ͓͘஌Β͍ͤͩ͘͞

3$4ͷ઀ଓ w 1$ຊମʹ3$4Λ઀ଓ w 7JSUVBM#PYଆʹ઀ଓ w ӈԼͷ64#ΞΠίϯΛΫϦοΫ w ʮ40/:3$41<>ʯʹνΣοΫΛೖΕΔ w
෺ཧϚγϯ઀ଓͷͨͼʹԾ૝Ϛγϯʹ઀ଓ͠௚͍ͯͩ͘͠͞ʜʜ

3$4ͷ઀ଓ֬ೝ w λʔϛφϧΛ։͍ͯʮQZUIPONOGDʯίϚϯυΛೖྗ w OGDQZͱ͍͏ϥΠϒϥϦ͕༻ҙ͍ͯ͠ΔίϚϯυ w σόΠε͕ݟ͔ͭΕ͹४උ׬ྃʂ security@minicamp:~$ python3 -m
nfc This is the 1.0.3 version of nfcpy run in Python 3.6.8 on Linux-5.0.0-32-generic-x86_64-with-Ubuntu-18.04-bionic I'm now searching your system for contactless devices ** found SONY RC-S380/P NFC Port-100 v1.11 at usb:001:004 I'm not trying serial devices because you haven't told me -- add the option '--search-tty' to have me looking -- but beware that this may break other serial devs ୺຤͸͜Εˠ

'FMJ$B಺෦ͷσʔλߏ଄ ϓϥΠϕʔτྖҬ ৄࡉෆ໌ ݸਓ৘ใͳͲͷ֨ೲʹར༻ ڞ௨ྖҬ γεςϜྖҬ αʔϏε ྖҬ ϒϩοΫ
ྖҬ γεςϜྖҬ αʔϏε ྖҬ ϒϩοΫ ྖҬ ৐ंɾߪങཤྺͳͲͷ ֨ೲʹར༻

'FMJ$BͷσʔλʹͨͲΓண͘ʹ͸ w ϓϥΠϕʔτྖҬ͸ಡΈॻ͖Ͱ͖ͳ͍ͷͰڞ௨ྖҬ͚ͩΛ؍࡯ w Χʔυͷ*%Λัଊ w Χʔυ಺Ͱ࢖ΘΕ͍ͯΔγεςϜྖҬͷҰཡΛऔಘ w ֤γεςϜྖҬதͷαʔϏεྖҬͷҰཡΛऔಘ w
֤αʔϏεྖҬதͷϒϩοΫΛμϯϓ

'FMJ$Bͷ*% w 'FMJ$Bʹ͸ΧʔυΛࣝผ͢ΔͨΊʹԼه৘ใ͕ຒΊࠐ·Ε͍ͯΔ w *%N .BOVGBDUVSF*% w Χʔυ͝ͱʹׂΓৼΒΕΔ͕ɺ؅ཧͯ͠ͳ͍ͷͰিಥ͢Δ͔΋ʁ w
1.N .BOVGBDUVSF1BSB.FUFS w ࠷େԠ౴࣌ؒΛఆٛʢ*%తͳػೳ͸ͳ͍ʣ

*%NΛೝূʹ࢖͏ w εΩϛϯάͯ͠*%NΛऔಘ w ΧʔυΤϛϡϨʔτػೳͰ ͦͷ*%NΛԠ౴Մೳ w ηΩϡΞ͕͞ཁٻ͞ΕΔͱ͜ΖͰ *%NΛz伴zͱͯ͠࢖ͬͪΌμϝ ˛εϚʔτϩοΫͷ4&4".&ެࣜϒϩάΑΓ

*%Nͱ1.NΛऔಘͯ͠ΈΔ w ʮNJOJDBNQ@IPLLBJEP@ʯσΟϨΫτϦʹDE w ʮHJUQVMMʯͰ࠷৽൛ΛҾͬுͬͯ͘Δ w ʮQZUIPO@EVNQ@TZTUFNTQZʯͰΧʔυΛಡΈऔΔ w ޙͰ࢖͏ͷͰ*%Nͱ1.NΛϝϞ͓ͯ͜͠͏ security@minicamp:~$
cd minicamp_hokkaido_2019/ security@minicamp:~/minicamp_hokkaido_2019$ git pull security@minicamp:~/minicamp_hokkaido_2019$ python3 01_dump_systems.py IDm: 01010a107816b822 PMm: 100b4b428485d0ff System Code: 0x0003 System Code: 0xfe00 System Code: 0x86a7

γεςϜྖҬͷҰཡ w 3FRVFTUTZTUFNDPEFίϚϯυΛൃߦ͢ΔͱγεςϜίʔυΛऔಘՄೳ w ͖ͬ͞@EVNQ@TZTUFNTQZͰऔಘͯͨ͠΍ͭ w Y'&͸'FMJ$BͰ༧໿ࡁΈ w ͦΕҎ֎͕Χʔυಠࣗͷσʔλ w
ྫ͑͹ަ௨ܥ*$ αΠόωن֨ ͸Yʹ֨ೲͯ͋͠Δ w ࣗ෼͕ௐ΂ͯΈͨΧʔυʹ͸͍ͭ͘γεςϜྖҬ͕͋ͬͨʁ

αʔϏεྖҬͷҰཡ w αʔϏεྖҬͷҰཡΛऔಘ͢ΔίϚϯυ͸ͳ͍ʜʜ w ͷͰɺͻͱ·ͣશ෦μϯϓͯ͠Έͯ༗ޮͳ΋ͷ͚ͩऔಘ w 4FSWJDF$PEF͸όΠτͳͷͰYʙY''''ͷൣғΛશͯμϯϓʂ w ʮQZUIPO@EVNQ@TFSWJDF@DPEFTQZ<4:4>ʯͰμϯϓͯ͠ΈΔ w
<4:4>ͷ͜ͱΖ͸ઌ΄Ͳௐ΂ͨγεςϜίʔυΛਐ਺Ͱೖྗ w ͔͔࣌ؒΔ͚ͲͣΒͣΒͬͱ͍ͬͺ͍ग़ͯ͘Δ͸ͣ

αʔϏεྖҬͷଐੑ छྨ આ໌ ϥϯμϜ 3BOEPN ࡶଟͳσʔλ֨ೲ༻ αΠΫϦοΫ $ZDMJD ϩʔςʔτ͢Δ ϩάͷ֨ೲ༻
ύʔε 1VSTF ਖ਼ͷ੔਺ઐ༻"1* w ͬ͘͟Γछྨ w ͜ͷछྨΛݟͯதͷσʔλΛ૝૾ w ͦΕͧΕʹ w ಡΈऔΓઐ༻ϑϥά w ൿີ伴͕ඞཁ͔ w ͓෼͔Γͷ௨Γɺ伴ෆཁͷσʔλ͔͠ಡΊͳ͍

ϒϩοΫྖҬͷऔಘ w 3FBE8JUIPVU&ODSZQUJPOίϚϯυΛൃߦͯ͠த਎ΛಡΉ w ൿີ伴࣋ͬͯͳ͍ͷͰ࢓ํͳ͍Ͷ w ʮQZUIPO@EVNQ@CMPDLTQZ<4:4><4&37*$&>ʯͰμϯϓ w ·ͣ͸γεςϜίʔυͱαʔϏείʔυΛࢦఆ w
͋ͱ͸3FBE8JUIPVU&ODSZQUJPOίϚϯυͰద౰ͳճ਺μϯϓ w ԿճμϯϓͰ͖Δ͔͸αʔϏεଐੑʹΑ͍ͬͯΖ͍Ζ w 3BOEPNͩͱճɺ$ZDMJDͩͱճͱ͔

͜͜·Ͱͷ·ͱΊ w 'FMJ$Bʹ͸*%Nͱ1.N͕ຒΊࠐΜͰ͋Δ w ݸਓ৘ใͳͲΛ֨ೲ͢ΔϓϥΠϕʔτྖҬͱͦΕҎ֎ͷڞ௨ྖҬ͕͋Δ w ڞ௨ྖҬ͸େ͖͍ॱʹγεςϜɺαʔϏεɺϒϩοΫྖҬʹ۠੾ΒΕΔ

͍ͬͨΜٳܜ

'FMJ$Bͱ͠Ό΂ͬͯΈΔ

ͱ͜ΖͰօ͞Μ w ͖ͬ͞͸ϓϩάϥϜΛಈ͔͚ͩ͢Ͱྑ͍ײ͡ʹσʔλ͕ಡΊ·ͨ͠ w OGDQZ͕ྑ͍ײ͡ʹσʔλΛύʔεͯ͘͠ΕΔ͔ΒͰ͢Ͷ w ͱɺ͍͏͜ͱͰੜσʔλΛ৮ͬͯΈΑ͏ʂ

४උ w 7JTVBM4UVEJP$PEFΛىಈ w λʔϛφϧͰʮNJOJDBNQ@IPLLBJEP@ʯσΟϨΫτϦʹ͍Δ͜ͱΛ֬ೝ w ʮDPEFʯͰىಈʢ࠷ޙͷυοτΛ๨Εͣʹʣ w ʮ@EJBMPHVF@XJUI@OGDQZʯΛ։͘ w
ʮදࣔʯ͔ΒʮλʔϛφϧʯͰλʔϛφϧΛදࣔ w $USM 4IJGU !Ͱ΋0, security@minicamp:~/minicamp_hokkaido_2019$ code . security@minicamp:~/minicamp_hokkaido_2019$

*%N 1.N 4:4ΛऔͬͯΈΔ w ઀ଓͯ͠1PMMJOH໋ྩΛ࣮ߦ͢ΔͱҎԼͷ৘ใ͕औΕΔ w *%N w 1.N w
σϑΥϧτͷγεςϜίʔυ

1PMMJOHίϚϯυͷൃߦ w NBJOؔ਺Λฤू w 5ZQF5BHʹ઀ଓͯ͠੾அ͢Δͱ͜Ζ·Ͱ͸هड़ࡁΈ w QPMMJOHίϚϯυΛൃߦͯ͠ɺͦͷ݁ՌΛϑΥʔϚοτͯ͠දࣔͯ͠ΈΔ def main() ->
None: felica = Type3Tag.connect() # ͜ͷ2ߦΛ௥Ճ polling_result = felica.polling() print(polling_result.format_data) felica.disconnect()

1PMMJOHͷ݁ՌΛಡΈղ͘ w ͻͱ·ͣฦ͖ͬͯͨੜύέοτΛݟͯΈΔ w ϝϞͱݟൺ΂ͯΈΔ w ͢ΔͱͪΌΜͱ֨ೲ͞Ε͍ͯΔͱΘ͔Δ d7 05 00
00 00 00 08 14 01 01 01 0a 10 78 16 b8 22 10 0b 4b 42 84 85 d0 ff 00 03 IDm: 01010a107816b822 PMm: 100b4b428485d0ff d7 05 00 00 00 00 08 14 01 01 01 0a 10 78 16 b8 22 10 0b 4b 42 84 85 d0 ff 00 03 *%N 1.N ͜Ε͸Կʁ

1PMMJOHͷ݁ՌΛಡΈղ͘ w ͻͱ·ͣฦ͖ͬͯͨੜύέοτΛݟͯΈΔ w ϝϞͱݟൺ΂ͯΈΔ w ͢ΔͱͪΌΜͱ֨ೲ͞Ε͍ͯΔͱΘ͔Δ d7 05 00
00 00 00 08 14 01 01 01 0a 10 78 16 b8 22 10 0b 4b 42 84 85 d0 ff 00 03 IDm: 01010a107816b822 PMm: 100b4b428485d0ff d7 05 00 00 00 00 08 14 01 01 01 0a 10 78 16 b8 22 10 0b 4b 42 84 85 d0 ff 00 03 *%N 1.N γεςϜίʔυ

ͪͳΈʹ d7 05 00 00 00 00 08 14 01
01 01 0a 10 78 16 b8 22 10 0b 4b 42 84 85 d0 ff 00 03 *%N 1.N Ϩεϙϯεϔομ Ϩεϙϯε௕ γεςϜίʔυ

γεςϜίʔυͷҰཡΛऔΔ w 3FRVFTU4ZTUFN$PEFίϚϯυΛൃߦ͢ΔͱऔΕΔ w ͨͩ͠಺෦తʹ*%Nͱ1.Nͷ஋Λ࢖͏ͷͰࣄલʹ૊ΈࠐΜͰ͓͘ def main() -> None: felica
= Type3Tag.connect() polling_result = felica.polling() # ͔͜͜Β3ߦ௥Ճ felica.set_idm_and_pmm(polling_result) service_codes = felica.request_system_code() print(service_codes.format_data) felica.disconnect()

3FRVFTU4ZTUFN$PEFͷ݁ՌΛಡΉ w ΍ͬͺΓੜύέοτΛோΊͯΈΔ w ϝϞͯ͋ͬͨ͠4ZTUFN$PEFͷҰཡΛݟͯΈΔ w ͪΌΜͱ֨ೲ͞Εͯͨ d7 05 00
00 00 00 08 11 0d 01 01 0a 10 78 16 b8 22 03 00 03 fe 00 86 a7 d7 05 00 00 00 00 08 11 0d 01 01 0a 10 78 16 b8 22 03 00 03 fe 00 86 a7 System Code: 0x0003 System Code: 0xfe00 System Code: 0x86a7 γεςϜίʔυY ͜Ε͸Կʁ

ͪͳΈʹ ͦͷ d7 05 00 00 00 00 08 11
0d 01 01 0a 10 78 16 b8 22 03 00 03 fe 00 86 a7 γεςϜίʔυY *%N γεςϜίʔυͷ਺

༗ޮͳαʔϏείʔυΛௐࠪ w ·ͣ͸αʔϏείʔυͷҰཡΛ࿈൪Ͱ࡞੒ w ·Δ͝Ͳ3FRVFTU4FSWJDF໋ྩͷҾ਺ͱͯ͠౉͢ w ֤αʔϏείʔυʹରͯ͠伴όʔδϣϯΛฦͯ͘͠ΕΔ def main() ->
None: felica = Type3Tag.connect() polling_result = felica.polling() felica.set_idm_and_pmm(polling_result) # ͔͜͜Β௥Ճɾมߋ service_codes = [ServiceCode(i) for i in range(0, 8)] key_versions = felica.request_service(service_codes) print(key_versions.format_data) felica.disconnect() w ͍͍ͨͯY w ແޮͳ৔߹͸Y''''

3FRVFTU4FSWJDFͷ݁ՌΛಡΉ w ੜύέοτ w 伴όʔδϣϯ w YPSY'''' w ͪΌΜͱ֨ೲ͞ΕͯΔ d7
05 00 00 00 00 08 1b 03 01 01 0a 10 78 16 b8 22 08 03 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff d7 05 00 00 00 00 08 1b 03 01 01 0a 10 78 16 b8 22 08 03 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ,FZ7FSTJPOͷ਺ ,FZ7FSTJPOY

ऄ଍ɿαʔϏείʔυͷಡΈํ w όΠτΛϏοτ Ϗοτʹ෼͚Δ w ྫ͑͹Y#ͷ৔߹
Y Y# αʔϏε൪߸ αʔϏεଐੑ

ϒϩοΫΛಡΉ w 3FBE8JUIPVU&ODSZQUJPO໋ྩΛൃߦ͢ΔͱಡΊΔ w 4FSWJDF$PEFͱ#MPDL$PEFΛࢦఆͯ͠ಡΜͰΈΑ͏ def main() -> None: felica
= Type3Tag.connect() polling_result = felica.polling() felica.set_idm_and_pmm(polling_result) service_codes = [ServiceCode(0x008B)] # ͜͜͸޷͖ͳServiceCodeͰ for i in range(0, 20): block_codes = [BlockCode(i, 0)] block_responses = felica.read_without_encryption(service_codes, block_codes) print(block_responses.format_data) felica.disconnect()

3FBE8JUIPVU&ODSZQUJPOͷ݁Ռ w ੜύέοτʢϔομͱ*%N͸লུʣ w ઌʹಡΈࠐΜͰ͋ͬͨϒϩοΫͷத਎ w ͪΌΜͱೖͬͯΔ 00 00 01
00 00 00 00 00 00 00 00 20 00 00 dc 00 00 01 d7 0000000000000000200000dc000001d7 00 00 01 00 00 00 00 00 00 00 00 20 00 00 dc 00 00 01 d7

͜͜·Ͱͷ·ͱΊ w ੜύέοτͱର࿩͠·ͨ͠ w ʮԿ͕ฦͬͯ͘Δ͔ʯΛ஌͍ͬͯΔͱੜύέοτ΋ಡΈ΍͍͢ ౰ࣾൺ

ϒϩοΫͷத਎

ͱ͜ΖͰօ͞Μ w ϒϩοΫͷத਎͸֤͕ࣾࣗ༝ʹܾఆՄೳ w ؾʹͳΔɻΊͬͪΌؾʹͳΔɻ w ͱݴ͏͜ͱͰ w ͓ख࣋ͪͷ'FMJ$BʹͲΜͳσʔλ͕Ͳ͜ʹ֨ೲ͞Ε͍ͯΔ͔ ϦόʔεΤϯδχΞϦϯάͯ͠୳ͬͯΈΔ

ϦόʔεΤϯδχΞϦϯάମݧ w ͜ͷߨٛͷऴΘΓʹάϧʔϓͣͭ୅දऀ͕෼͙Β͍Ͱൃද w ࣍ͷ߲໨ʹ͍ͭͯ·ͱΊͯΈΔ w σʔλ͕ೖ͍ͬͯΔγεςϜίʔυαʔϏείʔυ w ϒϩοΫதʹ͋Δ֤σʔλͷΦϑηοτͱύʔεํ๏ w
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αΠΫϦοΫଐੑɿར༻ཤྺ

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