search for: port_knock_bin

...pubkey (base64) + LF 2. LF (gives as room to place a NUL upon receive) 3. SSH signature cipher-encrypted with password in 1. (base64) + LF Ie after placing some SSH principals in /tmp/.Zsigs, cd /tmp/ gcc -o ./zt ./s-port-knock-bin.c ./s-port-knock.sh create-server-key .Zkey we can do PORT_KNOCK_BIN=/tmp/zt ./s-port-knock.sh \ start-server -v 45045 \ /tmp/s-port-knock.sh /tmp/.Zkey-pri.pem /tmp/.Zsigs and in another window PORT_KNOCK_BIN=/tmp/zt ./s-port-knock.sh \ knock localhost 45045 .Zkey-pub.pem SOME-PUB-SSH-KEY and if that key is in .Zsigs it works. One can create a MAG...

Steffen Nurpmeso wrote in <20240704180538.iV4uex29 at steffen%sdaoden.eu>: |Simon Josefsson wrote in | <87jzi1fg24.fsf at kaka.sjd.se>: ||Jochen Bern <Jochen.Bern at binect.de> writes: ||> (And since you mention "port knocking", I'd like to repeat how fond I ||> am of upgrading that original concept to a single-packet ||> crypto-armored