Provided by: dropbear_2013.60-1ubuntu2_amd64
dropbearkey -t type -f file [-s bits] [-y]
dropbearkey generates a RSA or DSS format SSH private key, and saves it to a file for the use with the Dropbear client or server. Note that some SSH implementations use the term "DSA" rather than "DSS", they mean the same thing.
-t type Type of key to generate. Must be one of rsa or dss. -f file Write the secret key to the file file. -s bits Set the key size to bits bits, should be multiple of 8 (optional). -y Just print the publickey and fingerprint for the private key in file.
The program dropbearconvert(1) can be used to convert between Dropbear and OpenSSH key formats. Dropbear does not support encrypted keys.
generate a host-key: # dropbearkey -t rsa -f /etc/dropbear/dropbear_rsa_host_key extract a public key suitable for authorized_keys from private key: # dropbearkey -y -f id_rsa | grep "^ssh-rsa " >> authorized_keys
Matt Johnston (email@example.com). Gerrit Pape (firstname.lastname@example.org) wrote this manual page.
dropbear(8), dbclient(1), dropbearconvert(1) https://matt.ucc.asn.au/dropbear/dropbear.html dropbearkey(1)