Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
デジタル署名 / Digital Signature
Search
Kenji Saito
PRO
June 14, 2025
Technology
76
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
デジタル署名 / Digital Signature
早稲田大学大学院経営管理研究科「フィンテック ─ 金融革新とインターネット」2025 夏のオンデマンド教材 第8回で使用したスライドです。
Kenji Saito
PRO
June 14, 2025
More Decks by Kenji Saito
See All by Kenji Saito
FinTech 3-4 : Internet Technology and Governance
ks91
PRO
0
20
2026 秋 生成AI を活用した論文執筆ガイド/ワークショップ / Fall 2026: Guide and Workshop on Writing Papers Using Generative AI
ks91
PRO
0
48
AIとビジネス・メガトレンド 〜 サイバネティクス的経営観 / AI and Business Megatrends: A Cybernetic Perspective on Management
ks91
PRO
0
19
FinTech 1-2 : Overview of FinTech
ks91
PRO
0
140
アカデミーキャンプ 2026秋「位置ゲーに秀でよ!ウチらとヤツらのゲーム・デザイン」DAY 4 / Academy Camp 2026 Fall - Excel at Location-Based Games! Our and Their Game Design DAY 4
ks91
PRO
0
57
アカデミーキャンプ 2026秋「位置ゲーに秀でよ!ウチらとヤツらのゲーム・デザイン」DAY 3 / Academy Camp 2026 Fall - Excel at Location-Based Games! Our and Their Game Design DAY 3
ks91
PRO
0
68
アカデミーキャンプ 2026秋「位置ゲーに秀でよ!ウチらとヤツらのゲーム・デザイン」DAY 2 / Academy Camp 2026 Fall - Excel at Location-Based Games! Our and Their Game Design DAY 2
ks91
PRO
0
100
アカデミーキャンプ 2026秋「位置ゲーに秀でよ!ウチらとヤツらのゲーム・デザイン」DAY 1 / Academy Camp 2026 Fall - Excel at Location-Based Games! Our and Their Game Design DAY 1
ks91
PRO
0
71
責任2.0/3.0 ∼ 知的創造過程の脱領土化 / Responsibility 2.0 and 3.0: The Deterritorialization of the Intellectual Creative Process
ks91
PRO
0
53
Other Decks in Technology
See All in Technology
HolmesGPTで始めるSREエージェント入門!プラットフォームの障害調査はAIにお任せ 〜
leveragestech
PRO
0
140
[2026 Oracle Technical Deep Dive] AI時代のデータベース基盤をどう選ぶ? Exadata Database Serviceの選択肢と使い分け (2026年9月17日開催)
oracle4engineer
PRO
0
210
Claude起点の仕様駆動開発
tanakaseiya
0
360
『GOエコノミー 』(相乗りサービス) におけるスペック駆動開発
mot_techtalk
1
300
「とりあえず動く」の先へ。 AI時代のチーム開発と内部設計/2026-slsdays
slsops
0
130
インバスケット試験対策アプリを 作って見えたAIエージェント構築 ナレッジ2選
shichijoyuhi
1
120
AI時代だからこそ推したい!Gitコマンド再入門
munakata
0
140
Google Cloud Next Tokyo 26登壇時のスクリプト
recruitengineers
PRO
0
180
Futexes the good, the bad, the ugly
ennael
PRO
0
110
Deep Data Security 機能解説
oracle4engineer
PRO
2
670
AI駆動開発、viviONの1年 ── うまくいったこと・いかなかったこと
vivion
0
170
LLM機能を自作して分かるSnowflake Cortex AIの強み
nayuts
0
270
Featured
See All Featured
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
35
2.6k
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
livdayseo
0
210
Avoiding the “Bad Training, Faster” Trap in the Age of AI
tmiket
0
260
Mobile First: as difficult as doing things right
swwweet
225
10k
Become a Pro
speakerdeck
PRO
31
6.3k
Fantastic passwords and where to find them - at NoRuKo
philnash
52
3.9k
Ruling the World: When Life Gets Gamed
codingconduct
0
380
技術選定の審美眼(2025年版) / Understanding the Spiral of Technologies 2025 edition
twada
PRO
120
120k
More Than Pixels: Becoming A User Experience Designer
marktimemedia
3
550
Primal Persuasion: How to Engage the Brain for Learning That Lasts
tmiket
0
490
Mozcon NYC 2025: Stop Losing SEO Traffic
samtorres
1
570
Faster Mobile Websites
deanohume
310
32k
Transcript
Generated by Stable Diffusion 3.5 — 2025 8 (WBS) —
2025 8 — 2025-06 – p.1/9
https://speakerdeck.com/ks91/collections/fintech-2025-summer — 2025 8 — 2025-06 – p.2/9
( 20 ) 1 ↑ • 2 ↓ 2025 •
3 • 4 (TCP/IP ) • 5 • 6 • 7 • 8 ↑ • 9 ↓ 2024 ( ) 10 World Wide Web 11 Web API 12 * 13 git GitHub 14 (6/23 ) / (2 ) OK / — 2025 8 — 2025-06 – p.3/9
— 2025 8 — 2025-06 – p.4/9
(RSA ) RSA (RSA : Rivest, Shamir, Adleman) . .
. . . . ECDSA ( DSA : Digital Signature Algorithm) - — 2025 8 — 2025-06 – p.5/9
( ) < , > ← ( ) ← :
< , > : : < , , > : OK ( 1 ) NG ( ) — 2025 8 — 2025-06 – p.6/9
( ) ← CA (Certificate Authority; ) — 2025 8
— 2025-06 – p.7/9
CA ( ) . . . 1. 2. ( )
3. (↑) ↑ — 2025 8 — 2025-06 – p.8/9
— 2025 8 — 2025-06 – p.9/9