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<P class=ImprintUniqueID><div>Ping!<br /><br />Any comments?<br /><br />On 09-08-16 13:36, Mike Looijmans wrote:<br />> This patch adds DROPBEAR_RSAKEY_ARGS and DROPBEAR_DSSKEY_ARGS optional<br />> parameters to /etc/default/dropbear. The contents are simply passed to<br />> the 'dropbearkey' program when generating a host key.<br />><br />> The default keysize for RSA is currently 2048 bits. It takes a CortexA9<br />> running at 700MHz between 4 and 10 seconds to calculate a keypair. The<br />> board boots Linux in about a second, but you have to wait for several<br />> seconds because of the keypair generation. This patch allows one to put<br />> the line DROPBEAR_RSAKEY_ARGS="-s 1024" into /etc/default/dropbear, and<br />> have a host key generated in about 0.2 seconds on the same CPU. This is<br />> particulary useful for read-only rootfs systems which generate a key on<br />> each boot.<br />><br />> Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl><br />> ---<br />> meta/recipes-core/dropbear/dropbear/init | 4 ++--<br />> 1 file changed, 2 insertions(+), 2 deletions(-)<br />><br />> diff --git a/meta/recipes-core/dropbear/dropbear/init<br />> b/meta/recipes-core/dropbear/dropbear/init<br />> index e8fed3f..434bd6b 100755<br />> --- a/meta/recipes-core/dropbear/dropbear/init<br />> +++ b/meta/recipes-core/dropbear/dropbear/init<br />> @@ -62,13 +62,13 @@ for t in $DROPBEAR_KEYTYPES; do<br />> if [ -f "$DROPBEAR_RSAKEY" -a ! -s "$DROPBEAR_RSAKEY" ]; then<br />> rm $DROPBEAR_RSAKEY || true<br />> fi<br />> - test -f $DROPBEAR_RSAKEY || dropbearkey -t rsa -f $DROPBEAR_RSAKEY<br />> + test -f $DROPBEAR_RSAKEY || dropbearkey -t rsa -f $DROPBEAR_RSAKEY<br />> $DROPBEAR_RSAKEY_ARGS<br />> ;;<br />> dsa)<br />> if [ -f "$DROPBEAR_DSSKEY" -a ! -s "$DROPBEAR_DSSKEY" ]; then<br />> rm $DROPBEAR_DSSKEY || true<br />> fi<br />> - test -f $DROPBEAR_DSSKEY || dropbearkey -t dss -f $DROPBEAR_DSSKEY<br />> + test -f $DROPBEAR_DSSKEY || dropbearkey -t dss -f $DROPBEAR_DSSKEY<br />> $DROPBEAR_DSSKEY_ARGS<br />> ;;<br />> esac<br />> done<br />> --<br />> 1.9.1<br />><br />> Kind regards,<br />><br />> Mike Looijmans<br />><br />> System Expert<br />><br />><br />><br />> *TOPIC Products*<br />><br />> <br />><br />> <br />><br />> Materiaalweg 4<br />><br />> <br />><br />> <br />><br />> 5681 RJ Best<br />><br />> <br />><br />> T:<br />><br />> <br />><br />> +31 (0) 499 33 69 69<br />><br />> Postbus 440<br />><br />> <br />><br />> E:<br />><br />> <br />><br />> mike.looijmans@topicproducts.com<br />><br />> 5680 AK Best<br />><br />> <br />><br />> W:<br />><br />> <br />><br />> www.topicproducts.com <http://www.topicproducts.com><br />><br />> The Netherlands <br />><br />> <https://www.facebook.com/TopicProducts><https://twitter.com/TopicProducts><https://www.linkedin.com/company/topic-embedded-products><br />> Please consider the environment before printing this e-mail<br />><br />><br />> Topic zoekt gedreven (embedded) software specialisten!<br />> <http://topic.nl/vacancy/topic-zoekt-technische-software-engineers/><br />><br /><br /></div></P>
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<P class=ImprintUniqueID><FONT face="Calibri Light">Kind regards,</FONT></P>
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<P class=ImprintUniqueID><font style='font-family:Calibri Light;font-size:12pt;font-weight:bold;'>Mike Looijmans</font></P>
<P class=ImprintUniqueID><font style='font-family:Calibri Light;font-size:12pt;'>System Expert</font></P>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light"><STRONG>TOPIC
Products</STRONG></FONT></P></TD>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">Materiaalweg
4</FONT></P></TD>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">5681
RJ Best</FONT></P></TD>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">T:</FONT></P></TD>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">+31 (0) 499 33
69 69</FONT></P></TD></TR>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">Postbus
440</FONT></P></TD>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">E:</FONT></P></TD>
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<P class=ImprintUniqueID><font style='font-family:Calibri Light;font-size:8pt;'>mike.looijmans@topicproducts.com</font></P></TD></TR>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">5680 AK
Best</FONT></P></TD>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light">W:</FONT></P></TD>
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<P class=ImprintUniqueID><FONT size=1 face="Calibri Light"><A href="http://www.topicproducts.com">www.topicproducts.com</A></FONT></P></TD></TR>
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<TD><FONT size=1 face="Calibri Light">The Netherlands</FONT></TD>
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<P class=ImprintUniqueID><A href="https://www.facebook.com/TopicProducts"><FONT size=1 face="Calibri Light"><IMG id=IMG1 border=0 src="cid:image0faedc.JPG@9f6d8356.4bb8182d" width=20 height=19 /> </FONT></A><A href="https://twitter.com/TopicProducts"><FONT size=1 face="Calibri Light"><IMG id=IMG1 border=0 src="cid:image770862.JPG@fc94d670.439c9cfb" width=20 height=19 /></FONT></A><A href="https://www.linkedin.com/company/topic-embedded-products"><FONT size=1 face="Calibri Light"><IMG id=IMG1 border=0 src="cid:image9a10ac.JPG@ecd4fb18.4cb54942" width=20 height=18 /></FONT></A><BR /><FONT color=green size=1 face="Calibri Light">Please consider the environment before printing this
e-mail<BR /></FONT></P><BR /><A href="http://topic.nl/vacancy/topic-zoekt-technische-software-engineers/"><font style='font-family:Arial;font-size:8pt;'>Topic zoekt gedreven (embedded) software specialisten!</font></A><BR /><BR />
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