May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
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206
関連用語
用語に関連する話
用語の使用例
SSL/TLS
通信を暗号化する
Web ブラウザで Web サイトを閲覧する通信を暗号化するしくみとして、SSL や TLS が使
われている。Web サイトでクレジットカード番 号や 個 人 情 報を入力するときには、通 信の
暗号化の確認が当たり前になった。SSL や TLS に対応しているサイトでは、HTTPSとい
うプ ロトコル が 使 われるため 、U R L が「 h t t p s 」で 始まり、南 京 錠 のアイコンが 表 示される。
サイトの実在性を証明
SSLやTLS では通信の暗号化を
実現するだけでなく、サーバーで
使用されている証明書を見るこ
とでサイトの運営組織の実在性
を証明できる。
増える楕円曲線暗号
これまでは公開鍵暗号の手法と
してRSA暗号が多く用いられて
いたが、鍵の長さを短くしても同
レベルの安全性を確保できる楕
円曲線暗号が使われだしている。
全ページをSSL化
従来はSSL の導入費用や応答速
度の問題があり入力フォームの
みSSLを導入していたが、最近は
全ページをSSL 化する常時 SSL
が普及している。
Keyword
183
▶
えすえすえる
▶
てぃえるえ す
「SSL/TLSを使えばインターネットでの盗聴にも安心だね。」
HTTPとHTTPS
……P124
暗号化と復号
……P201
VPN
……P208
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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.