view dropbearconvert.1 @ 1013:a1e79ffa5862

Tighten validation of DH values. Odds of x==0 being generated are improbable, roughly 2**-1023 Regression in 0.49
author Matt Johnston <matt@ucc.asn.au>
date Tue, 10 Feb 2015 21:46:19 +0800
parents 295a08e9d07e
children 80cacacfec23
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.TH dropbearconvert 1
.SH NAME
dropbearconvert \- convert between Dropbear and OpenSSH private key formats
.SH SYNOPSIS
.B dropbearconvert
.I input_type
.I output_type
.I input_file
.I output_file
.SH DESCRIPTION
.B Dropbear
and 
.B OpenSSH
SSH implementations have different private key formats.
.B dropbearconvert
can convert between the two.
.P
Dropbear uses the same SSH public key format as OpenSSH, it can be extracted
from a private key by using
.B dropbearkey \-y
.P
Encrypted private keys are not supported, use ssh-keygen(1) to decrypt them
first.
.SH OPTIONS
.TP
.B input type
Either 
.I dropbear
or 
.I openssh
.TP
.B output type
Either 
.I dropbear
or 
.I openssh
.TP
.B input file
An existing Dropbear or OpenSSH private key file
.TP
.B output file
The path to write the converted private key file. For client authentication ~/.ssh/id_dropbear is loaded by default
.SH EXAMPLE
 # dropbearconvert openssh dropbear ~/.ssh/id_rsa ~/.ssh/id_dropbear
.SH AUTHOR
Matt Johnston ([email protected]).
.SH SEE ALSO
 dropbearkey(1), ssh-keygen(1)
.P
https://matt.ucc.asn.au/dropbear/dropbear.html