Bitkey

[labbe5]

http://www.linuxandubuntu.com/home/bitk ... ansactions

BITKEY is a bootable system image based on Debian containing everything you need to perform highly secure air-gapped Bitcoin transactions. Under the hood, it comes with a swiss army knife of handy Bitcoin tools that support a wide range of usage models, including a few very secure ones which would otherwise be difficult to perform. BITKEY is based on the Turkey GNU/Linux build system and aims at providing an air-gapped system that is physically disconnected from the internet.

This provides a highly secured self-contained read only CD/USB stick with everything you need to perform Bitcoin transactions with as much security as you wanted including air-gapped Bitcoin transactions.

Further reading :
https://protonmail.com/blog/how-to-keep ... ns-secure/