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Posted to issues@karaf.apache.org by "Johannes Utzig (JIRA)" <ji...@apache.org> on 2018/07/10 15:05:00 UTC

[jira] [Created] (KARAF-5809) 'simple' host.key files no longer work

Johannes Utzig created KARAF-5809:
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             Summary: 'simple' host.key files no longer work
                 Key: KARAF-5809
                 URL: https://issues.apache.org/jira/browse/KARAF-5809
             Project: Karaf
          Issue Type: Bug
          Components: karaf-shell
    Affects Versions: 4.2.0
            Reporter: Johannes Utzig


It seems  that with KARAF-5286 support for the 'simple' host key format was removed.

If one tries to connect to a karaf instance that still has a 'simple' host.key, it produces this exception:

org.apache.commons.ssl.ProbablyNotPKCS8Exception: asn1 parse failure: java.io.IOException: DER length more than 4 bytes

It seems that in this case the SSH server generates a new key in memory without persisting it which means that on each start the client will see a new SSH fingerprint.

I would like to submit a pull request that falls back to the old format in case the file is not a valid PEM. If that's successful it would replace the host.key with a PEM version of that keypair.



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