Version 8.1 doesn't support keys with passphrase generated by the 7.7.2.0 version

[energister]

Steps:

1. use x64 ssh-keygen from the 7.7.2.0 version to generate a key: ssh-keygen -b 2048 -C "[email protected]" -f new_rsa
2. enter passphrase

This generates a key that isn't compatible with the 8.1.0.0 version

For example:

3. run ssh-keygen on generated key: ssh-keygen -p -f new_rsa

And you'll get

Failed to load key new_rsa: invalid format

Same result will be with the ssh: ssh hostname

Load key "c:\\Users\\<user_name>\\.ssh\\new_rsa": invalid format

Client OperatingSystem OS Name: Microsoft Windows 10 Pro OS Version: 10.0.19041 N/A Build 19041

[energister]

Looks similar to the #973

[energister]

Workaround (using PuTTYgen): https://serverfault.com/a/1043095/238181

[mletterle]

This worked for me:

openssl pkey < key_rsa > key_rsa.pkcs8
ssh-keygen -p -f key_rsa.pkcs8
move key_rsa.pkcs8 key_rsa

[paulomanrique]

What worked for me was to re-enable the "OpenSSH Authentication Agent" service on Windows (it was on manual for some reason). As soon as the service started, my old keys started to work again.