dropbear rsa key problem

Using public key authentication with dropbear ssh client is a little different from regular openssh clients. Dropbear doesn't lookup users .ssh directory for user's private key. You should expicitly say which private key will be used for session with the -i parameter. Whole process described below:

First of all, you sould create a rsa key with dropbearkey in /home/user/.ssh directory

~/.ssh$ dropbearkey -t rsa -f id_rsa
This command generate a public key, you sould copy and paste it to other PC's in authorized_keys file.
(you souldn't paste Fingerprint line, only key line)

Try, connect to PC this commad:

~$ dbclient -y -i ~/.ssh/id_rsa user@ip
Finally you sould use this command for scp

~$ scp -S dbclient -i ~/.ssh/id_rsa fileName user@ip:/dir

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