SSL暗号化通信を利用したネットワークセキュリティの向上（2020年版）

44-҉߸Խ௨৴Λར༻ͨ͠
ωοτϫʔΫηΩϡϦςΟͷ޲্
ʢ೥൛ʣ 
'JMF.BLFS
1SP
౦‫ژ‬ϢʔβʔζϛʔςΟϯά
ൃදࢿྉ
দඌಞʢ‫ࣜג‬ձࣾΤϛοΫʣ

ࣗ‫঺ݾ‬հ w দඌಞʢ·͓ͭ͋ͭ͠ʣ
✓ ‫ࣜג‬ձࣾΤϛοΫ
୅දऔక໾
✓ 'JMF.BLFS

ೝఆσϕϩού
✓ LJOUPOFೝఆ
ΞϓϦσβΠϯεϖγϟϦετʢ೥݄ʣ
✓ IUUQTXXXGBNMPHKQ
✓ IUUQTOPUFDPNNBUTVP@BUTVTIJ

• https://www.famlog.jp/
• https://note.com/matsuo_atsushi

‫ࣜג‬ձࣾΤϛοΫ w 'JMF.BLFS੡඼ରԠϗεςΟϯάαʔϏεΛ ೥͔Βఏ‫
ڙ‬ ‎'.ϓϥϯϥΠτʢֹ݄ ԁʣ͕৽ొ৔
w LJOUPOFಋೖࢧԉɾΧελϚΠζ։ൃ
w IUUQTXXXFNJDDPKQ

• https://www.emic.co.jp/

ࠓճͷ࿩୊  44-ͷ֓ཁͱ࠷ۙͷঢ়‫
گ‬  'JMF.BLFS੡඼Ͱ44-Λར༻͢Δʹ͸
 -"/Ͱ44-Λར༻͢Δʹ͸


44-ͷ֓ཁͱ
࠷ۙͷঢ়‫گ‬

ྫ͑͹͜ͷΑ͏ͳͱ͖ w ॏཁͳ৘ใΛΠϯλʔωοτ্Ͱ΍Γऔ Γ͢ΔࡍʹσʔλΛ҆શʹૹड৴͍ͨ͠

҉߸Խ௨৴ ౪ௌ ❌❌ վ᜵ ͳΓ͢·͠

4FDVSF
4PDLFUT
-BZFS w σʔλΛ҉߸Խͯ͠΍ΓऔΓ͢Δखॱͷ ܾ·Γʢϓϩτίϧʣ
w ΫϥΠΞϯτɾαʔόʔؒͷ௨৴Λ҉߸ ԽͰ͖Δ

'JMF.BLFS੡඼͸
44-҉߸Խ௨৴ʹରԠ w 'JMF.BLFS
1SP
"EWBODFE(Pͱ 'JMF.BLFS
4FSWFS$MPVEؒͷ௨৴ ʢ5$1
൪ϙʔτʣ
w ϒϥ΢βʔͱ8FCαʔόʔؒͷ௨৴ ʢ5$1
ʗ൪ϙʔτʣ

44-ͷར༻ྫ w 5$1
൪ϙʔτΛ࢖༻ͨ͠ωοτϫʔ Ϋ‫ڞ‬༗ʢαʔόʔ੡඼ར༻࣌ʣ
w ΠϯλϥΫςΟϒίϯςϯπͷϓϩάϨο w "ENJO
$POTPMF
γϒμ΢ϯϩʔυ
w ϗετʹΞοϓϩʔυ
FUD

44-͸αʔϏε͝ͱʹ
ରԠ͕ඞཁ 44- 'JMF.BLFS
1SP
"EWBODFE ΍'JMF.BLFS
(PͰͷ઀ଓ 'JMF.BLFS
4FSWFS 44- 8FCαʔόʔ 8FCϒϥ΢βʔͰͷ઀ଓ

ࢀߟɿ44-ͱ71/ͷҧ͍ 44'JMF.BLFS
/FUXPSL )5514 %/4 71/

5-4ɿ44-ͷ‫֨نܧޙ‬ w ࠷৽ͷ‫֨ن‬͸5-4
ʢ5-4ɿ 5SBOTQPSU
-BZFS
4FDVSJUZʣ
w 5-4
΍5-4
ͷར༻͸ඇਪ঑ʹ w 'JMF.BLFS੡඼͸5-4
Λαϙʔτ

44-5-4ؔ࿈࠷৽৘ใ w ֤ϒϥ΢βʔͰ44-ະରԠ࣌ʹ‫ࠂܯ‬දࣔ
w ֤ϒϥ΢βʔͰΞυϨεόʔʹ͓͚Δ&7
w ৗ࣌44-͕ҰൠԽɾඞਢԽ
44-ূ໌ॻͷ૊৫໊ද͕ࣔഇࢭ
w ແྉͷ44-αʔόʔূ໌ॻͱͯ͠஌ΒΕ ͍ͯΔ-FUT
&ODSZQU͕ී‫ٴ‬

ৗ࣌44-͕ҰൠԽɾඞਢԽ w 8FCαΠτͷ͢΂ͯͷϖʔδΛ44-҉ w ৗ࣌44-
߸Խ௨৴ରԠʹ͢Δ͜ͱ
w (PPHMF
$ISPNF͸ࠓ‫߹ࠞޙ‬ίϯςϯπ ʢ44-ରԠϖʔδ಺ͷ44-ະରԠͷίϯ ςϯπʣΛஈ֊తʹϒϩοΫ

44-ະରԠ࣌ʹ‫ࠂܯ‬දࣔ w ΞυϨε͕ʮIUUQʯͰ࢝·Δ44-ະର Ԡͷ8FCαΠτͰ͸‫͕ࠂܯ‬දࣔ͞ΕΔΑ ͏ʹ

&7
44-Ͱ૊৫໊ͷඇදࣔ w &7
44-ূ໌ॻΛ࢖༻͍ͯ͠Δ8FCαΠ τͰ૊৫໊͕දࣔ͞Εͳ͍Α͏ʹ

-FUT
&ODSZQU͕ී‫ٴ‬ w ެ‫ڞ‬ͷརӹΛ໨తͱͯ͠*OUFSOFU
4FDVSJUZ
3FTFBSDI
(SPVQʢ*43(ʣ͕ ӡӦ
w ূ໌ॻͷࣗಈߋ৽ʹରԠ w ແྉͷ44-αʔόʔূ໌ॻ


'JMF.BLFS੡඼Ͱ
44-Λར༻͢Δʹ͸

Ͳͷόʔδϣϯ͕ඞཁʁ ʢ೥݄‫ࡏݱ‬ʣ w 'JMF.BLFS
1SP
Ҏ߱ʢ'JMF.BLFS
w αϙʔτର৅੡඼Ͱ͋Δόʔδϣϯ
1SP
"EWBODFE΋ಉ༷ʣ
w 'JMF.BLFS
4FSWFS
Ҏ߱
w 'JMF.BLFS
$MPVE
GPS
"84
Ҏ߱ w 'JMF.BLFS
(P
Ҏ߱

Ͳͷόʔδϣϯ͕ඞཁʁ ʢ೥݄‫ࡏݱ‬ʣ w όʔδϣϯҎલ͸தؒೝূ‫ہ‬ͷมߋʹ ରԠͰ͖ͳ͍࢓༷ʹͳ͍ͬͯΔ
w όʔδϣϯͷϝʔΧʔαϙʔτ͸͢Ͱ ʹऴ͍ྃͯ͠Δ
‣ ೥݄࣌఺Ͱ͸όʔδϣϯҎ߱ ͷར༻Λ‫͘ڧ‬ਪ঑

࣍ͷΑ͏ͳΤϥʔʹૺ۰
ͨ͜͠ͱ͸͋Γ·ͤΜ͔ʁ

❌ ⭕

44-ಋೖʹ͋ͨͬͯ w ؅ཧԼʹஔ͍͍ͯΔυϝΠϯ໊͕ඞཁ
w ྫɿFNJDDPKQ w ೝূ‫͔ہ‬Βূ໌ॻΛߪೖ

αϙʔτ͞ΕΔূ໌ॻͷൢച‫͓ݩ‬Αͼ঎඼໊ σδαʔτʢ‫چ‬γϚϯςοΫʣ
ηΩϡΞɾαʔό*% ίϞυδϟύϯ
‫ۀا‬ೝূλΠϓ
44-ʢ&MJUF
44-
$FSUJpDBUFʣɺ&7λΠϓ
44- δΦτϥετ

τΡϧʔϏδωε*% 5IBXUF
44- (P%BEEZ
4UBOEBSE
44- छྨ ॺ໊ϋογϡ
ΞϧΰϦζϜ ࣮ࡏೝূ‫ܕ‬ 4)" ࣮ࡏೝূ‫ܕ‬ 4)" ࣮ࡏೝূ‫ܕ‬ 4)" υϝΠϯೝূ‫ܕ‬ υϝΠϯೝূ‫ܕ‬ 4)"
VOEFS
4)"
3PPU 4)"

Ձ֨ʢ೥ؒʣͷ໨҆ ӡӦऀͷ࣮ࡏੑ৹ࠪ υϝΠϯೝূ ʢ%7ʣ ࣮ࡏೝূ
ʢ07ʣ ֦ுೝূ
ʢ&7ʣ ໿ ԁʙ
 ԁʙ
 ԁʙ
ʢԁʙʣ ʢ໿ ԁʙʣ ʢ໿ ԁʙʣ  ࣮ࢪ ‫ࢪ࣮ʹ֨ݫ‬ ΞυϨεόʔ ૊৫໊͸දࣔ͞Εͳ͍ ૊৫໊͸දࣔ͞Εͳ͍ ૊৫໊͕දࣔ͞ΕΔ
૊৫໊͸දࣔ͞Εͳ͍ ূ໌ॻϏϡʔΞ ૊৫໊͸දࣔ͞Εͳ͍ ૊৫໊͕දࣔ͞ΕΔ ૊৫໊͕දࣔ͞ΕΔ

44-ରԠखॱ֓ཁ w ೝূ‫ʹہ‬ఏग़͢Δ$43ϑΝΠϧʢͱඇެ ։ͷϓϥΠϕʔτϑΝΠϧʣΛੜ੒
w "ENJO
$POTPMFͰೝূ‫͔ہ‬Βൃߦ͞Ε ͨ44-αʔόʔূ໌ॻͱதؒ$"ূ໌ॻ ΛΠϯϙʔτ
w αʔόʔΛ࠶‫ى‬ಈ

$43ϑΝΠϧͷੜ੒ w ೝূ‫ʹہ‬ఏग़͢Δॺ໊ϦΫΤετ ʢ$FSUJpDBUF
4JHOJOH
3FRVFTUʣ
w ೝূ‫Ͱہ‬Ҋ಺͞Ε͍ͯΔPQFOTTMίϚϯ w GNTBENJOίϚϯυͰੜ੒Մ
υΛ࢖ͬͨҰൠతͳํ๏Ͱ΋0,

ূ໌ॻͷΠϯϙʔτ w GNTBENJOίϚϯυʢGNTBENJO
w "ENJO
$POTPMF্ͰΠϯϙʔτ͕Մೳ
DFSUJpDBUF
JNQPSUʣͰ΋Πϯϙʔτ͕ Մೳ

ূ໌ॻͷΠϯϙʔτ

44-Λ࢖༻͢Δઃఆʹ w 'JMF.BLFS
4FSWFS
ͷ৔߹ʹ͸"ENJO
$POTPMFͰʦσʔλϕʔε઀ଓʹ
44-
Λ ࢖༻͢ΔʧઃఆΛ༗ޮԽ
w w όʔδϣϯҎ߱Ͱ͸ূ໌ॻΠϯϙʔ τ࣌ʹࣗಈͰ༗ޮԽ
σʔλϕʔεαʔόʔͱ8FCެ։Τϯδ ϯΛ࠶‫ى‬ಈ

'JMF.BLFSΫϥΠΞϯτ
͔Βͷ઀ଓ w 'JMF.BLFS
1SP
"EWBODFE΍'JMF.BLFS
(P͔Βαʔόʔʹ઀ଓ͢Δࡍʹ͸‫׬‬શ म০υϝΠϯ໊ʢαʔόʔ໊ʣΛ࢖༻
w *1ΞυϨεͷ࢖༻͸ෆՄ

Windows macOS ҉߸Խ௨৴ͷঢ়ଶ ઀ଓ͕҉߸Խ͞Ε͍ͯ·ͤΜ ࣮ࡍͷ઀ଓઌΛ૷ͬͨαʔόʔʹ઀ଓ͍ͯ͠ΔՄೳੑ͕͋ Γɺ͓٬༷ͷೝূ৘ใ͕‫ʹݥة‬മ͞ΕΔՄೳੑ͕͋Γ·͢ ઀ଓ͸ΧελϜ SSL ূ໌ॻʹΑͬͯ҉߸Խ͞Ε͍ͯ·͢

αʔόʔҠߦ࣌ͷ஫ҙ఺ w 'JMF.BLFS
4FSWFSϑΥϧμ௚Լʹ͋Δ $4UPSFϑΥϧμ಺ͷϑΝΠϧΛอ؅ɾ ίϐʔ͢Δඞཁ͕͋Δ
w ϓϥΠϕʔτΩʔϑΝΠϧΛฆࣦ͢Δͱ Ұ͔Β࠶ൃߦखଓ͖͕ඞཁ ⚠

$4UPSFϑΥϧμ಺ͷ
ϑΝΠϧ w w $43ʢূ໌ॻॺ໊ཁ‫ٻ‬ʣ
TFSWFS,FZQFN
w ϓϥΠϕʔτΩʔϑΝΠϧ
w w TFSWFS$VTUPNQFN
ূ໌ॻϑΝΠϧΛΠϯϙʔτͯ͠ੜ੒͞Εͨ w TFSWFS3FRVFTUQFN
ϑΝΠϧ

'JMF.BLFS
4FSWFS

Ҏ߱ͷมߋ఺ w "ENJO
$POTPMF͔Β$43ϑΝΠϧ࡞੒ ‫ػ‬ೳ͕࡟আ
w GNTBENJOίϚϯυ΍PQFOTTMίϚϯυ Λ࢖༻ͯ͠࡞੒͢Δඞཁ͕͋Δ ⚠


-"/Ͱ44-Λ
ར༻͢Δʹ͸

-"/Ͱ44-Λར༻͢Δʹ͸ w ୅දతͳํ๏ͱͯ͠͸ҎԼͷ͍ͣΕ͔
w %/4Ϩίʔυ৘ใΛઃఆͰ͖Δϧʔλʔ w ໊લղܾͰ͖ΔωοτϫʔΫ‫͕ڥ؀‬ඞཁ
Λ࢖༻
w w ֤ΫϥΠΞϯτ୺຤ͷIPTUTϑΝΠϧΛ -"/಺ʹωʔϜαʔόʔΛߏங
ฤू

ؔ࿈৘ใ

2VBMZT
44-
-BCT
44-
4FSWFS
5FTU w 8FCαʔόʔͷ44-ઃఆΛ͞·͟·ͳ‫؍‬ ఺͔ΒνΣοΫ
w ద੾ʹαʔόʔ͕ઃఆ͞Ε͍ͯΔ͔
w ੬ऑੑ͕ͳ͍͔
FUD w ‫ͯ͘ݹ‬ऑ͍҉߸Λ࢖͍ͬͯͳ͍͔

2VBMZT
44-
-BCT
44-
4FSWFS
5FTU

ূ໌ॻͷ‫ূݕ‬͸ॏཁ w ʦ63-
͔ΒૠೖʧεΫϦϓτεςοϓͰ44-઀ ଓ͢Δࡍʹ͸ඞͣʦ44-
ূ໌ॻͷ‫ূݕ‬ʧʹνΣο ΫΛ͚ͭΔ
w ূ໌ॻͷ‫ূݕ‬ෆඋ͸੬ऑੑʹ૬౰
IUUQTKWOECKWOKQTFBSDIJOEFYQIQ NPEF@WVMOFSBCJMJUZ@TFBSDI@*"@7VMO4FBSD IMBOHKBVTF4ZOPOZNLFZXPSE' %#&' $''%

ূ໌ॻͷ‫ূݕ‬͸ॏཁ

·ͱΊ

·ͱΊ w 44-5-4͸ੈքͰ࠷΋ར༻͞Ε͍ͯΔ ҉߸Խ௨৴ͷํ๏
w 'JMF.BLFS੡඼Ͱ44-Λ࢖͏ͷͰ͋Ε͹ w ࠷ۙͰ͸ৗ࣌44-͕ҰൠԽɾඞਢԽ
ϝʔΧʔαϙʔτର৅όʔδϣϯΛ࢖༻