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The policy files must be downloaded manually and installed in your Java lib/security folder replacing the old files. (DO NOT KEEP THE OLD FILES. Keeping both will invalidate the install. Replace the old ones.)

Java6: http://www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html
Java7: http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html
Java8: http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html
You may also search google for: 'java unlimited cryptography policy files'

OS X Java 6 install location:

/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home/lib/security/
OS X Java 7 and above install location:
/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/security/
Windows install location:
C:\Program Files\Java\jre8\lib\security\

CrushFTP must be restarted after making this change. (The service or daemon.) You can use the CrushFTP app to stop the daemon, and start the daemon.

Once this has been done, edit the cipher list in the server prefs SSH port item, SSH tab to duplicate the AES128 ciphers and replace the 128 with 256. Your Encryption, SSL tab items will automatically include the new items. Stronger key and keystore files will now work properly too. You will now be secure using strong cryptography instead of the weakened default policy that ships with Java due to 1990's bureaucracy.

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The updated files will resolve PGP decryption issues, outbound SFTP/FTPES/HTTPS/SMTP connection issues to servers requiring strong cryptography, etc. Anything requiring strong cryptography will now work!

At the admin > Preferences > Encryption > SSL tab you can set select the "All insecure ciphers" and that will automatically remove the weak encryption files. After this change save the changes and at the admin > status tab move the mouse over the https port to and restart the service to apply the changes you have made.
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Kind Attachment Name Size Version Date Modified Author Change note
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SSH.png 39.0 kB 1 29-Dec-2020 05:25 Halmágyi Árpád
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all_insecure.png 155.9 kB 2 29-Dec-2020 05:25 Ben Spink
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oracle.png 63.3 kB 1 29-Dec-2020 05:25 Ben Spink
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replace.png 59.2 kB 1 29-Dec-2020 05:25 Ben Spink
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windows.png 154.3 kB 1 29-Dec-2020 05:25 Ben Spink
« This particular version was published on 29-Dec-2020 05:25 by Halmágyi Árpád.
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