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デジタル署名 / Digital Signature

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for Kenji Saito Kenji Saito PRO
June 07, 2026
Technology
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デジタル署名 / Digital Signature

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8回で使用したスライドです。

Avatar for Kenji Saito

Kenji Saito PRO

June 07, 2026

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Transcript

  1. Generated by Stable Image Core 2026 8 (WBS : )

    2026 8 — 2026-06 – p.1/9

  2. https://speakerdeck.com/ks91/collections/cyber-security-2026-summer 2026 8 — 2026-06 – p.2/9

  3. ( 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 / 2026 8 — 2026-06 – p.3/9

  4. 2026 8 — 2026-06 – p.4/9

  5. (RSA ) RSA (RSA : Rivest, Shamir, Adleman) . .

    . . . . ECDSA ( DSA : Digital Signature Algorithm) - 2026 8 — 2026-06 – p.5/9

  6. ( ) < , > ← ( ) ← :

    < , > : : < , , > : OK ( 1 ) NG ( ) 2026 8 — 2026-06 – p.6/9

  7. ( ) ← CA (Certificate Authority; ) 2026 8 —

    2026-06 – p.7/9

  8. CA ( ) . . . 1. 2. ( )

    3. (↑) ↑ 2026 8 — 2026-06 – p.8/9

  9. 2026 8 — 2026-06 – p.9/9