Topic: [ASK] about cold/offline storage address (Read 824 times)
its safe use it for as long as you like
Yes, that is secure enough. Remember to hide the hardcopy of the private key somewhere safe but easily accessible to you. Keep a duplicate hardcopy if you deem it necessary. For greater security, you might want to wipe and reformat the computer that you generated the private key on. A triple Gutmann reformat would certainly clear all doubts. Some printers keep a copy of printed files though, so you may want to look into that too.
So, I'm using vanity gen to generate the address (https://bitcointalksearch.org/topic/vanitygen-vanity-bitcoin-address-generatorminer-v022-25804) on veery old offline computer, No wifi, no LAN cable, fresh installed OS, then I print the address detail such as private key etc. what I do next is adding that address to blockchain.info as 'watch only address'. what I ask is.. Is that address cold enough? I never import the private key anywhere.
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