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<a id='L7' name='L7'></a><title>Verify (YACASL2のインストール)</title>
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<a id='L32' name='L32'></a><div class="section-level-extent" id="Verify">
<a id='L33' name='L33'></a><p class="nav-panel">
<a id='L34' name='L34'></a><span class="nav-button"><span class="nav-label">Next: </span><span class="nav-link"><a href="Expand.html" accesskey="n" rel="next">YACASL2ファイルの展開</a></span></span>, <span class="nav-button"><span class="nav-label">Previous: </span><span class="nav-link"><a href="Download.html" accesskey="p" rel="prev">YACASL2ファイルのダウンロード</a></span></span>, <span class="nav-button"><span class="nav-label">Up: </span><span class="nav-link"><a href="install.html" accesskey="u" rel="up">インストールの手順</a></span></span><span class="nav-button"> &nbsp; </span></p>
<a id='L35' name='L35'></a><hr>
<a id='L36' name='L36'></a><h3 class="section" id="YACASL2_30d5_30a1_30a4_30eb_306e_691c_8a3c"><span>2.2 YACASL2ファイルの検証<a class="copiable-link" href="#YACASL2_30d5_30a1_30a4_30eb_306e_691c_8a3c"> &para;</a></span></h3>
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<a id='L38' name='L38'></a><p>ダウンロードが完了したら、圧縮ファイルが改竄されていないか検証します。検証には、GnuPG分離署名か、MD5ハッシュ値を使います。
<a id='L39' name='L39'></a></p>
<a id='L40' name='L40'></a><ul class="mini-toc">
<a id='L41' name='L41'></a><li><a href="#GnuPG_5206_96e2_7f72_540d_3067_306e_691c_8a3c" accesskey="1">GnuPG分離署名での検証</a></li>
<a id='L42' name='L42'></a><li><a href="#MD5_30cf_30c3_30b7_30e5_5024_3067_306e_691c_8a3c" accesskey="2">MD5ハッシュ値での検証</a></li>
<a id='L43' name='L43'></a></ul>
<a id='L44' name='L44'></a><div class="subsection-level-extent" id="GnuPG_5206_96e2_7f72_540d_3067_306e_691c_8a3c">
<a id='L45' name='L45'></a><h4 class="subsection"><span>2.2.1 GnuPG分離署名での検証<a class="copiable-link" href="#GnuPG_5206_96e2_7f72_540d_3067_306e_691c_8a3c"> &para;</a></span></h4>
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<a id='L47' name='L47'></a><p>GnuPGの<code class="command">gpg</code>で圧縮ファイルを検証します。この検証を行うには、GnuPGがインストールされ、自分の秘密鍵と公開鍵のペアが作成されている必要があります。
<a id='L48' name='L48'></a></p>
<a id='L49' name='L49'></a><div class="example">
<a id='L50' name='L50'></a><pre class="example-preformatted">$ <kbd class="kbd">gpg --verify yacasl2.tar.xz.asc</kbd>
<a id='L51' name='L51'></a>gpg: Signature made Sat Oct 27 02:17:16 2012 JST using RSA key ID 25B62DD1
<a id='L52' name='L52'></a>gpg: Can't check signature: public key not found
<a id='L53' name='L53'></a>$ <kbd class="kbd">gpg --recv-keys 25B62DD1</kbd>
<a id='L54' name='L54'></a>gpg: requesting key 25B62DD1 from hkp server keys.gnupg.net
<a id='L55' name='L55'></a>gpg: key 25B62DD1: public key &quot;j8takagi &lt;j8takagi@nifty.com&gt;&quot; imported
<a id='L56' name='L56'></a>gpg: Total number processed: 1
<a id='L57' name='L57'></a>gpg: imported: 1 (RSA: 1)
<a id='L58' name='L58'></a>
<a id='L59' name='L59'></a>$ <kbd class="kbd">gpg --lsign-key 25B62DD1</kbd>
<a id='L60' name='L60'></a>
<a id='L61' name='L61'></a>pub 2048R/25B62DD1 created: 2012-09-29 expires: never usage: SC
<a id='L62' name='L62'></a> trust: unknown validity: full
<a id='L63' name='L63'></a>sub 2048R/92E25C29 created: 2012-09-29 expires: never usage: E
<a id='L64' name='L64'></a>[ full ] (1). j8takagi &lt;j8takagi@nifty.com&gt;
<a id='L65' name='L65'></a>
<a id='L66' name='L66'></a>
<a id='L67' name='L67'></a>pub 2048R/25B62DD1 created: 2012-09-29 expires: never usage: SC
<a id='L68' name='L68'></a> trust: unknown validity: full
<a id='L69' name='L69'></a> Primary key fingerprint: ...
<a id='L70' name='L70'></a>
<a id='L71' name='L71'></a> .* &lt;.*@.*&gt;
<a id='L72' name='L72'></a>
<a id='L73' name='L73'></a>Are you sure that you want to sign this key with your
<a id='L74' name='L74'></a>key &quot;.* &lt;.*@.*&gt;&quot;
<a id='L75' name='L75'></a>
<a id='L76' name='L76'></a>The signature will be marked as non-exportable.
<a id='L77' name='L77'></a>
<a id='L78' name='L78'></a>Really sign? (y/N) <kbd class="kbd">y</kbd>
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<a id='L80' name='L80'></a>You need a passphrase to unlock the secret key for
<a id='L81' name='L81'></a>user: &quot;.* &lt;.*@.*&gt;&quot;
<a id='L82' name='L82'></a>2048-bit RSA key, ID ........, created 20..-..-..
<a id='L83' name='L83'></a>
<a id='L84' name='L84'></a>&lt;input password&gt; <kbd class="kbd">password</kbd>
<a id='L85' name='L85'></a>
<a id='L86' name='L86'></a>$ <kbd class="kbd">gpg --verify yacasl2.tar.xz.asc</kbd>
<a id='L87' name='L87'></a>gpg: Signature made Sat Oct 27 02:17:16 2012 JST using RSA key ID 25B62DD1
<a id='L88' name='L88'></a>gpg: checking the trustdb
<a id='L89' name='L89'></a>gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
<a id='L90' name='L90'></a>gpg: depth: 0 valid: 1 signed: 4 trust: 0-, 0q, 0n, 0m, 0f, 1u
<a id='L91' name='L91'></a>gpg: depth: 1 valid: 4 signed: 0 trust: 4-, 0q, 0n, 0m, 0f, 0u
<a id='L92' name='L92'></a>gpg: Good signature from &quot;j8takagi &lt;j8takagi@nifty.com&gt;&quot;
<a id='L93' name='L93'></a></pre></div>
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<a id='L95' name='L95'></a></div>
<a id='L96' name='L96'></a><div class="subsection-level-extent" id="MD5_30cf_30c3_30b7_30e5_5024_3067_306e_691c_8a3c">
<a id='L97' name='L97'></a><h4 class="subsection"><span>2.2.2 MD5ハッシュ値での検証<a class="copiable-link" href="#MD5_30cf_30c3_30b7_30e5_5024_3067_306e_691c_8a3c"> &para;</a></span></h4>
<a id='L98' name='L98'></a>
<a id='L99' name='L99'></a><p><code class="command">openssl</code>と<code class="command">diff</code>で圧縮ファイルを検証します。
<a id='L100' name='L100'></a></p>
<a id='L101' name='L101'></a><div class="example">
<a id='L102' name='L102'></a><pre class="example-preformatted">$ <kbd class="kbd">openssl md5 yacasl2.tar.gz | diff -s yacasl2.tar.gz.md5sum -</kbd>
<a id='L103' name='L103'></a>Files yacasl2.tar.gz.md5sum and - are identical
<a id='L104' name='L104'></a></pre></div>
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