public keys we'll put in the authorized_keys of the nodes
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAqt/ZPP31RQB8zs/wgoWAKZV9mPKCOweuMWHiSbGdOXA1rf7aKjuTRVYyMyhNpdqJVWLslTFhvSO3Gz+vwTOIcFD0UgUxjyJobld0W8GriNaJVzN+mSrSALGRg3cxvFREqtibwn2E/ed3zey9Pjl8qYCuNe/3xUru64w3IEXdXeeTlcPCntTzScDFllQltR7CUVyVgJYz5JhUDI2kIIphK9hQYtqnhhE1jPXHLLYWS5YVNUDSbHjROffA72A/eUlir6B4u4w8B17bFqJDrRRn1I+oqR7ZYm0B+aPrNoFpzReDti0yPa8Zbyk+52jd5eF1HBHOSOrOEEZodUKYL5c79w== ptr@feynman ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAzK3WzAks2TLMk+RWnyvUXgAsRBuDd69QtAw1/hdbch+rkZcLgU2fKcZYr1IJHM3g45qiHRI6zA9O7q7UiJRPKM8ZWyhaxEILJLm+5/y5zUh7odbPpcE6yIDPmcWgaQdcG+jWqDwfahU92GNlLR+KCMPJnIUST5IXCgJq9/gqfC783/af63QLkqZyavf2YFxvGLbkNTIpd7+U0JiSJLWs5SDn0B+0WYXrpXrX1939X7oVa25mn/ReGNX0lcI58BBxtYAR4C1ouHGH88NqeF1OiguzerItbDKF74Piy2QnUTdJA1ZEudSvleqfCqmj2mIhrc7Ptxc3Yae2YQiufl9Vfw== clauz@quetzalcoatl ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAzgQWm2dar2pVplTEbCTPJvVw+3D9nxTPf0oDlpUPtSS2eLxDpRTT7Tw8ZlFKZo9DxcmhLXimTpMmsCHNJr0XmNAe0wvNOVcZSclyFg0fS8HcvY74NpkSQHwmcM9Mf9SImsi+dVjfSwe5o7vPcrcDiZK30jhIskOf2qXEeghSVyNvFImom6kK/oeMikSHHKvF8sH7fVPwzmCGWmke5KmhkuRgm4X258JhHGV/fT2LmLUbbdGmiGtG8/N/quTzQXyqVKEjNTxjSEKICcKaaF18LfdL3mrBsXBqa44qs3PN2Md1m0w/b/dO0g0YO+2wRP1tMTOnUkJY3WB36xZI2jBwBQ== root@buzek ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA1k2Rry9Yxe7S6dEFt+jRkQ2ZQHTLM5DLqQ4Z+aI2Rg9fwR2LVnJiQiyFBtjFWHYjkfVLOI/zdfAHc4gk/mKucAq7Q1k0SU/YEcXDXI5MNp2LB20tFVY9TzT8YnBNl68ufA8kZ+HKYS8Sxf3xzx3D777w7zKAy6ua1ceaUq/V0wZzhbmpg9wtFZyBiBryqzVVHvF1zXgScp5TYlLWywweRxa5XlfC7oXVBHMqAmmsUW71vZbBFZMyoMji8R7zQssJgmDO/EMgiulVme3rtFqOewab+gsGR7lmQ00PVNNrhmbul7PZ8OvjHwaMza1LybQm4lwOekh7KbCcZDGUHrvGVQ== zoobab@buzek
These should be saved as target/linux/<target>/base-files/etc/dropbear/authorized_keys, e.g. target/linux/atheros/base-files/etc/dropbear/authorized_keys