<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="11" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[11]</anchor-end> <dfn><code class="HTTP" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">opaque</anchor></code></dfn> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">引数</anchor>は、
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">サーバー</anchor>が任意のデータを<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">クライアント</anchor>に送信させるものです。
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">HTTP</anchor> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ダイジェスト認証</anchor>で使われます。</p><section><h1>仕様書</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[3]</anchor-end> <strong><cite xml:lang="en">RFC 7616 - HTTP Digest Access Authentication</cite> (<time>2015-11-10 07:05:08 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://tools.ietf.org/html/rfc7616#section-3.3">https://tools.ietf.org/html/rfc7616#section-3.3</anchor-external></strong></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="12" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[12]</anchor-end> <cite xml:lang="en">RFC 7616 - HTTP Digest Access Authentication</cite> (<time>2015-11-10 07:05:08 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://tools.ietf.org/html/rfc7616#section-3.4">https://tools.ietf.org/html/rfc7616#section-3.4</anchor-external></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[8]</anchor-end> <cite xml:lang="en">RFC 7616 - HTTP Digest Access Authentication</cite> (<time>2015-11-10 07:05:08 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://tools.ietf.org/html/rfc7616#section-3.6">https://tools.ietf.org/html/rfc7616#section-3.6</anchor-external></li></ul></refs></section><section><h1>意味</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="4" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[4]</anchor-end> <code class="HTTP" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">opaque</anchor></code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">引数</anchor>の値は、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">サーバー</anchor>が指定する文字列です
<src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;3</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="9" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[9]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">クライアント</anchor>は<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">サーバー</anchor>が指定した <code><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">opaque</anchor></code>
を当該<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">セッション</anchor>の間そのまま <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">credentials</anchor> に指定することになっていますから、
認証セッションの状態情報を伝達するためにこれを使うことができます。 <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;8</anchor-internal></src></p><comment-p xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="10" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[10]</anchor-end> <code xmlns="http://www.w3.org/1999/xhtml" class="HTTP"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">nonce</anchor></code> にもより簡単かつ安全にそうした情報を含められます
<src><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;8</anchor-internal></src>。</comment-p></section><section><h1>構文</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="16" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[16]</anchor-end> <code class="ABNF" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">auth-param</anchor></code> 
の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">引用文字列</anchor>構文を使わなければ<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><strong xmlns="http://www.w3.org/1999/xhtml">なりません</strong></anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;3</anchor-internal>, <anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="12" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;12</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="7" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[7]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Base64</anchor> や<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">十六進数</anchor>で符号化した<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文字列</anchor>を使う<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><strong xmlns="http://www.w3.org/1999/xhtml">べきです</strong></anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;3</anchor-internal></src>。</p></section><section><h1>文脈</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="5" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[5]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ダイジェスト認証</anchor>の <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">challenge</anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;3</anchor-internal></src> や
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">credentials</anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="12" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;12</anchor-internal></src> に指定できます。</p></section><section><h1>処理</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="13" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[13]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">credentials</anchor> には <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">challenge</anchor> で指定された値をそのまま指定しなければなりません
<src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="12" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;12</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="6" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[6]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">クライアント</anchor>は、 <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">challenge</anchor> で受信した <code class="HTTP" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">opaque</anchor></code>
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">引数</anchor>値をそのまま変更せずに同じ<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">保護空間</anchor>内の <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">URL</anchor> に対する<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">要求</anchor>の
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">credentials</anchor> で指定する<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><strong xmlns="http://www.w3.org/1999/xhtml">べきです</strong></anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;3</anchor-internal></src>。</p></section><section><h1>歴史</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[1]</anchor-end> <cite xml:lang="en">RFC 2069 - An Extension to HTTP : Digest Access Authentication</cite> (<time>2012-02-26 10:05:21 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://tools.ietf.org/html/rfc2069#page-5">http://tools.ietf.org/html/rfc2069#page-5</anchor-external></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[2]</anchor-end> <cite xml:lang="en">RFC 2617 - HTTP Authentication: Basic and Digest Access Authentication</cite> (<time>2012-01-09 21:04:30 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://tools.ietf.org/html/rfc2617#section-3.2.1">http://tools.ietf.org/html/rfc2617#section-3.2.1</anchor-external></li></ul></refs></section></body></html>