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  <author_name>winebarrel</author_name>
  <author_url>https://blog.hatena.ne.jp/winebarrel/</author_url>
  <blog_title>so what</blog_title>
  <blog_url>https://so-wh.at/</blog_url>
  <categories>
    <anon>RUBY</anon>
  </categories>
  <description>pkcs5_keyivgenで適切にsaltを設定すればいいのかも。 試してみる。 require 'openssl' passwd = 'foobarzoo' source = 'じゅげむじゅげむ' def encrypt(plain, passwd, salt = nil) cipher = OpenSSL::Cipher::Cipher.new('AES-256-CBC') cipher.encrypt cipher.pkcs5_keyivgen(passwd, salt) crypted = (cipher.update(plain) + cipher.final) crypted.u…</description>
  <height>190</height>
  <html>&lt;iframe src=&quot;https://hatenablog-parts.com/embed?url=https%3A%2F%2Fso-wh.at%2Fentry%2F20081104%2Fp6&quot; title=&quot; OpenSSL: AEC-CBCの初期ベクトル その２ - so what&quot; class=&quot;embed-card embed-blogcard&quot; scrolling=&quot;no&quot; frameborder=&quot;0&quot; style=&quot;display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;&quot;&gt;&lt;/iframe&gt;</html>
  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2008-11-04 00:00:02</published>
  <title> OpenSSL: AEC-CBCの初期ベクトル その２</title>
  <type>rich</type>
  <url>https://so-wh.at/entry/20081104/p6</url>
  <version>1.0</version>
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