annotate dropbearkey.1 @ 1505:55120acb9994

Add Spectre v2 mitigations for GCC (#54)
author Loganaden Velvindron <logan@hackers.mu>
date Fri, 16 Feb 2018 19:35:32 +0400
parents 80cacacfec23
children 5c8913b7464c
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1 .TH dropbearkey 1
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2 .SH NAME
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3 dropbearkey \- create private keys for the use with dropbear(8) or dbclient(1)
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4 .SH SYNOPSIS
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5 .B dropbearkey
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6 \-t
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7 .I type
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8 \-f
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9 .I file
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10 [\-s
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11 .IR bits ]
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12 [\-y]
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13 .SH DESCRIPTION
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14 .B dropbearkey
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15 generates a
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16 \fIRSA\fR, \fIDSS\fR, or \fIECDSA\fR
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17 format SSH private key, and saves it to a file for the use with the
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18 Dropbear client or server.
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19 Note that
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20 some SSH implementations
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21 use the term "DSA" rather than "DSS", they mean the same thing.
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22 .SH OPTIONS
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23 .TP
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24 .B \-t \fItype
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25 Type of key to generate.
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26 Must be one of
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27 .I rsa
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28 .I ecdsa
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29 or
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30 .IR dss .
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31 .TP
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32 .B \-f \fIfile
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33 Write the secret key to the file
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34 \fIfile\fR. For client authentication ~/.ssh/id_dropbear is loaded by default
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35 .TP
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36 .B \-s \fIbits
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37 Set the key size to
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38 .I bits
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39 bits, should be multiple of 8 (optional).
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40 .TP
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41 .B \-y
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42 Just print the publickey and fingerprint for the private key in \fIfile\fR.
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43 .SH NOTES
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44 The program dropbearconvert(1) can be used to convert between Dropbear and OpenSSH key formats.
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45 .P
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46 Dropbear does not support encrypted keys.
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47 .SH EXAMPLE
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48 generate a host-key:
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49 # dropbearkey -t rsa -f /etc/dropbear/dropbear_rsa_host_key
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50
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51 extract a public key suitable for authorized_keys from private key:
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52 # dropbearkey -y -f id_rsa | grep "^ssh-rsa " >> authorized_keys
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53 .SH AUTHOR
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54 Matt Johnston ([email protected]).
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55 .br
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56 Gerrit Pape ([email protected]) wrote this manual page.
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57 .SH SEE ALSO
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58 dropbear(8), dbclient(1), dropbearconvert(1)
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59 .P
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60 https://matt.ucc.asn.au/dropbear/dropbear.html