February 2013
Intermediate to advanced
380 pages
7h 45m
Japanese
Content preview from Nodeクックブック
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249
レシピ 7.4 HTTPS サーバを立てる
server.js（続き）
https.createServer(opts, function(req, res) {
res.end('
セキュア！
');
}).listen(4443); //
本番環境では
443
これだけです。
解説
https
モジュールは、
http
モジュールと
tls
モジュールに依存します。そして
tls
モジュール
は、
net
モジュールと
crypto
モジュールに依存します（いずれのモジュールも
Node
のコアモ
ジュールです）。
SSL/TLS
はトランスポート層の暗号化を行うため、
HTTP
より下の
TCP
層で動
作します。
tls
と
net
の各モジュールが
SSL/TLS
で暗号化された
TCP
接続を生成し、
HTTPS
が
この上層で動作します。
クライアントが
HTTPS
で接続した場合（本レシピの場合は
https://localhost:4443
）、クライ
アントはサーバと
TLS/SSL
ハンドシェイクを行います。
https
モジュールは、
tls
モジュールを
使ってブラウザとサーバ間で必要な情報のやりとり（サポートする
SSL/TLS
のバージョン、暗号
種別、公開鍵など）を実行します。
ハンドシェイクを終えると、クライアントとサーバの両方が共通鍵（セッション鍵とも呼ばれま
す）を所持します。この共通鍵はサーバとクライアントでやりとりされるデータの暗号化と復号化
に使用されます。この暗号化と復号化に
crypto
モジュールが活躍します。
開発者にとっては、
https
モジュールを ...
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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.