[jira] [Created] (SSHD-759) Should not overwrite existing ssh key if the algorithm does not match

[Christian Schneider (JIRA)]

Christian Schneider created SSHD-759:
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             Summary: Should not overwrite existing ssh key if the algorithm 
does not match
                 Key: SSHD-759
                 URL: https://issues.apache.org/jira/browse/SSHD-759
             Project: MINA SSHD
          Issue Type: Bug
    Affects Versions: 1.4.0
            Reporter: Christian Schneider
             Fix For: 1.5.0


Currently a key file that does not have the correct algorithm is simply deleted.
I think this is not a good behaviour as the user might have created the key 
explicitly.

https://github.com/apache/mina-sshd/blob/master/sshd-core/src/main/java/org/apache/sshd/server/keyprovider/AbstractGeneratorHostKeyProvider.java#L238-L244

I propose we simply throw an exception if the algorithm does not match. Then 
the user can decide if he wants to delete the file or change the algorithm.




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