dropbearkey - create private keys for the use with dropbear(8) or dbclient(1)

       Matt Johnston (matt@ucc.asn.au).
       Gerrit Pape (pape@smarden.org) wrote this manual page.

dropbearkey  generates  a  RSA, DSS, ECDSA, or Ed25519 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.

       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

       dropbearkey - create private keys for the use with dropbear(8) or dbclient(1)

       The program dropbearconvert(1) can be used to convert between Dropbear and OpenSSH key formats.

       Dropbear does not support encrypted keys.

-ttype
              Type of key to generate.  Must be one of rsaecdsaed25519 or dss.

       -ffile
              Write the secret key to the file file. For client authentication ~/.ssh/id_dropbear is  loaded  by
              default

       -sbits
              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.

dropbear(8), dbclient(1), dropbearconvert(1)

       https://matt.ucc.asn.au/dropbear/dropbear.html

                                                                                                  dropbearkey(1)

dropbearkey -t type -f file [-s bits] [-y]