generic-poky/meta/recipes-core/dropbear
Mike Looijmans 23afc338f6 dropbear/init: Allow extra arguments for key generation
This patch adds DROPBEAR_RSAKEY_ARGS and DROPBEAR_DSSKEY_ARGS optional
parameters to /etc/default/dropbear. The contents are simply passed to
the 'dropbearkey' program when generating a host key.

The default keysize for RSA is currently 2048 bits. It takes a CortexA9
running at 700MHz between 4 and 10 seconds to calculate a keypair. The
board boots Linux in about a second, but you have to wait for several
seconds because of the keypair generation. This patch allows one to put
the line DROPBEAR_RSAKEY_ARGS="-s 1024" into /etc/default/dropbear, and
have a host key generated in about 0.2 seconds on the same CPU. This is
particulary useful for read-only rootfs systems which generate a key on
each boot.

(From OE-Core rev: c0efbcb47ab37c2d9c298fcd40ecaadd3ca050a7)

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:39 +01:00
..
dropbear dropbear/init: Allow extra arguments for key generation 2016-08-17 10:35:39 +01:00
dropbear.inc dropbear: Remove incorrect SFTPSERVER_PATH from CFLAGS 2016-05-30 15:58:12 +01:00
dropbear_2016.74.bb dropbear: upgrade to 2016.74 2016-08-01 11:47:12 +01:00