minus-squareRowan Thorpe@lemmy.mltoNo Stupid Questions@lemmy.world•Is it possible to design a (pen and paper) cipher that is secure against government cryptanalysis for at least 10 years?linkfedilinkarrow-up5·12 hours agoIn-band periodic key-exchange. Pre-arrange that keys expire every X messages, and that the last (Xth) message is dedicated to sending the new key encrypted by the previous one. linkfedilink
minus-squareRowan Thorpe@lemmy.mltolinuxmemes@lemmy.world•macrolinkfedilinkarrow-up0·17 days ago…which are all layers on Debian. linkfedilink
In-band periodic key-exchange. Pre-arrange that keys expire every X messages, and that the last (Xth) message is dedicated to sending the new key encrypted by the previous one.