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https://issues.apache.org/jira/browse/SSHD-1221?focusedWorklogId=677848&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-677848
 ]

ASF GitHub Bot logged work on SSHD-1221:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 05/Nov/21 20:44
            Start Date: 05/Nov/21 20:44
    Worklog Time Spent: 10m 
      Work Description: tomaswolf merged pull request #208:
URL: https://github.com/apache/mina-sshd/pull/208


   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 677848)
    Time Spent: 1h  (was: 50m)

> Support key constraints when adding a key to an SSH agent
> ---------------------------------------------------------
>
>                 Key: SSHD-1221
>                 URL: https://issues.apache.org/jira/browse/SSHD-1221
>             Project: MINA SSHD
>          Issue Type: Improvement
>    Affects Versions: 2.7.0
>            Reporter: Thomas Wolf
>            Assignee: Thomas Wolf
>            Priority: Major
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> This is needed for OpenSSH compatibility. 
> [OpenSSH|https://datatracker.ietf.org/doc/html/draft-miller-ssh-agent-04#section-4.2.6]
>  documents three constraints:
>  * confirm - the agent prompts the user before each key use of a key added 
> with this option.
>  * lifetime - in seconds; the agent automatically removes the key when the 
> time expires.
>  * generic extensions, of which there is one:
>  ** sk-provider - path to a middleware library needed for FIDO keys
>  The [IETF 
> draft|https://datatracker.ietf.org/doc/html/draft-ietf-secsh-agent-02#section-1.4.2]
>  also has constraints for keys being added, but of course those are 
> different, and their draft looks incomplete in those sections.
> Apache MINA sshd should provide interfaces that enable users to implement 
> adding keys to an agent with arbitrary constraints, and should provide a 
> default implementation compatible with OpenSSH.



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