This is a text-only version of the following page on https://raymii.org: --- Title : Where is dropbearconvert on Ubuntu? Author : Remy van Elst Date : 02-04-2019 URL : https://raymii.org/s/snippets/Where_is_dropbearconvert_on_ubuntu.html Format : Markdown/HTML --- Dropbear is a lightweight SSH server and client implementation, often used on embedded systems and routers. If you use the [dropbear SSH client (dbclient)][1] and want to use a private key, it needs to be in the dropbear format and cannot have a passphrase. Dropbear provides a conversion utility to convert openssh style keys to dropbear style keys, dropbearconvert, but on Ubuntu it's not in your $PATH. This means you have to provide the full path to execute it, which is cumbersome. There is a [bug in Ubuntu][2] that has been reported in 2012, but in Ubuntu 18.04 (2019) it's still not fixed. This is the full path to dropbearconvert: /usr/lib/dropbear/dropbearconvert This is an example to convert an OpenSSH style private key to a dropbear style private key: usr/lib/dropbear/dropbearconvert openssh dropbear ~/.ssh/id_rsa ~/.ssh/id_rsa_dropbear Your dropear style private key will be located in `~/.ssh/id_rsa ~/.ssh/id_rsa_dropbear`. Do note that your private key cannot be protected with a passphrase. Dropbear does not support this.

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[1]: http://manpages.ubuntu.com/manpages/trusty/man1/dbclient.1.html [2]: https://bugs.launchpad.net/ubuntu/+source/dropbear/+bug/1009868 [3]: https://www.digitalocean.com/?refcode=7435ae6b8212 --- License: All the text on this website is free as in freedom unless stated otherwise. This means you can use it in any way you want, you can copy it, change it the way you like and republish it, as long as you release the (modified) content under the same license to give others the same freedoms you've got and place my name and a link to this site with the article as source. This site uses Google Analytics for statistics and Google Adwords for advertisements. You are tracked and Google knows everything about you. Use an adblocker like ublock-origin if you don't want it. All the code on this website is licensed under the GNU GPL v3 license unless already licensed under a license which does not allows this form of licensing or if another license is stated on that page / in that software: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Just to be clear, the information on this website is for meant for educational purposes and you use it at your own risk. I do not take responsibility if you screw something up. Use common sense, do not 'rm -rf /' as root for example. If you have any questions then do not hesitate to contact me. See https://raymii.org/s/static/About.html for details.