[clarknova]

Originally Posted by test011

We are on!

https://www.mobileread.com/forums/showthread.php?t=97745

I am sure you can do something with this.
Maybe, a short script to install a hacked certificate?

Yup. Don't have a K3 myself, but if things are similar to the K2 filesystem, a simple:

#!/bin/sh

#make root writeable
rwroot

#install key
cat <<EOF > /etc/uks/pubhackkey01.pem
-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDJn1jWU+xxVv/eRKfCPR9e47lP
WN2rH33z9QbfnqmCxBRLP6mMjGy6APyycQXg3nPi5fcb75alZo+Oh012HpMe9Lnp
eEgloIdm1E4LOsyrz4kttQtGRlzCErmBGt6+cAVEV86y2phOJ3mLk0Ek9UQXbIUf
rvyJnS2MKLG2cczjlQIDAQAB
-----END PUBLIC KEY-----
EOF

#make root read only
roroot

should do the trick to allow the packages to be signed with Jean-Yves key.