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The system that is authenticating with GIT has an old version of OpenSSH (could use SHA-1 signing of keys) that does not support handling keys generated from a newer version (SHA-2 signature). This could result in a newer SHA-2 signed key trying to be accessed by an older version of OpenSSH that is only aware of SHA-1 signing. Additionally, most GIT providers will only accept SHA-2 signed keys. Please ensure that the OpenSSH version installed is 8.0+ on systems that will be performing GIT operations.
The system that is authenticating with GIT is Windows-based and is running a version of OpenSSH that is less than 8.4. Please see the Executing On Windows Endpoint With Git Plugin section below.
Executing On Windows Endpoint With GIT Plugin
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