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パスワード/パスフレーズと認証 / Passwords, Passphrases and Au...
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Kenji Saito
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June 07, 2026
Technology
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パスワード/パスフレーズと認証 / Passwords, Passphrases and Authentication
早稲田大学大学院経営管理研究科「サイバーセキュリティ」2026夏のオンデマンド教材 第12回で使用したスライドです。
Kenji Saito
PRO
June 07, 2026
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Transcript
Generated by Stable Image Core 2026 12 (WBS : )
12 — 2026-06 – p.1/10
https://speakerdeck.com/ks91/collections/cyber-security-2026-summer 12 — 2026-06 – p.2/10
( 20 ) 1 • 2 • 3 • 4
(TCP/IP ) • 5 • 6 • 7 • 8 • 9 • 10 World Wide Web • 11 Web API • 12 • 13 git GitHub 14 / / OK / 12 — 2026-06 – p.3/10
← 12 — 2026-06 – p.4/10
( ) (1) : ( ) ( ) (2) :
( ) ( ) (passkey) ( ) ( ) 12 — 2026-06 – p.5/10
→ ( : “Correct Horse Battery Staple”) ↑ ( )
( ) 12 — 2026-06 – p.6/10
. . . ( 2018 3 ) 1 ( )
( ) 12 — 2026-06 – p.7/10
3 2 ( ) (2 ) . . . .
. . . . . (1) : (2) : (3) : (4) : IC ( ) (2 ) . . . ( ) 12 — 2026-06 – p.8/10
https://security-portal.nisc.go.jp/guidance/handbook.html ← & weakest link https://security-portal.nisc.go.jp/index.html 12 — 2026-06 –
p.9/10
12 — 2026-06 – p.10/10