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JDK8u151 から 暗号化設定変更(無制限の暗号化を利用する場合)

More than 1 year has passed since last update.

https://www.java.com/ja/download/faq/release_changes.xml
より、

  1. プログラム内部で、Security.setProperty("crypto.policy", "unlimited");を記述。
  2. java.securityファイルに、crypto.policy=unlimited を記載する。
  3. US_export_policy.ja と local_policy.jar を従来通り配置する。

一番簡単なのは、ポリシーファイルの配置作業がなくなり、テキストファイルのみの修正で対応できる 2. かな。

これから記述するプログラムは、JCEフレームワークの呼び出し前に、1.の設定をルーチン化する方がいい。

覚え書きでした。

追記:
OpenJDKには AES-256が含まれていますので、上記設定は不要です。

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