February 2023
Intermediate
256 pages
5h 50m
Japanese
Content preview from アルゴリズム図鑑 増補改訂版 絵で見てわかる33のアルゴリズム
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
No.
5-10
公開鍵暗号方式やデジタル署名の仕組みでは、公開鍵が本当に通信相手のものであることが保
証されないという問題がありました。そのため、悪意のある第三者が公開鍵をすり替えて渡して
も、受け取る側は気付くことができませんでした。本節で説明するデジタル証明書の仕組みを用
いると、公開鍵の正当性を保証できます。
A B
SA
PA
internet
A
さ は 公 開 鍵
P
A
P
A
と鍵
S
A
S
A
の ペ ア て り 公 開 鍵
P
A
B
さにとていと
CA
A
SA
PA
internet
A
さは認証
CA
Certification Authority
に公開鍵
P
A
分ののと
証明書の
01
02
認証局は、デジタル証明書の管理をする組織です。原理的には誰でも認証局になるこ
とができるので数多く存在していますが、政 府 や監査を受けた大企業など、信 頼 でき
る組織を利用するのが安全です。
CA
A
SA
PC
PA
internet
SC
CA
A
SA
PC
internet
SC
A
PA
認証は意公開鍵
P
C
P
C
と
鍵
S
C
S
C
てい
A
さは公開鍵
P
A
とメールアドレス
認証にり ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.