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Created July 16, 2020 02:15
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JGit and invalid private key
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howto.md 
Caused by: com.jcraft.jsch.JSchException: invalid privatekey: [B@e4487af

The root cause was discovered to be the ssh private key mismatch. The exception only happened for users with key of newer kind ed25519, which outputs this key header:

-----BEGIN OPENSSH PRIVATE KEY-----

instead of kind RSA:

-----BEGIN RSA PRIVATE KEY-----

regenerating an RSA key (ssh-keygen -t rsa), made the exception go away. If you have OpenSSH 7.8 and above you might need to add -m PEM to the generation command:

ssh-keygen -t rsa -m PEM

Reference

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