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https://issues.apache.org/jira/browse/NIFI-1415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy LoPresto reopened NIFI-1415:
---------------------------------

I am re-opening this ticket and suggest adding a property to this processor to 
explicitly allow an empty passphrase on a private key, but by default requiring 
a passphrase. I think we should raise the status quo to enforce good security 
practices, which require a passphrase to protect this extremely sensitive data. 
We should instruct the user on the proper process to add a passphrase to their 
key if necessary. If there are legacy requirements/blockers to doing this, the 
administrator/dataflow manager will be required to explicitly acknowledge that 
this is unsafe and set the override property. As an example, this has been 
implemented for weak legacy cryptographic combinations in {{EncryptContent}} 
processor in [NIFI-1463]. This should also be done for all other uses of 
"private keys" throughout the application. 

> FetchSFTP should not require password or private key passphrase
> ---------------------------------------------------------------
>
>                 Key: NIFI-1415
>                 URL: https://issues.apache.org/jira/browse/NIFI-1415
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Extensions
>            Reporter: Mark Payne
>            Assignee: Mark Payne
>             Fix For: 0.5.0
>
>         Attachments: 
> 0001-NIFI-1415-Do-not-enfoce-that-a-password-or-Private-K.patch
>
>
> SFTP does support allowing a user to connect with a Private Key but not 
> passphrase. The Processor should support this.



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