#private key

[sergeibystrov2015-blog]

Bitcoin Transaction changer software

Email to download: [email protected]

[coffeewheat]

How to store private key in environment variable

This is necessary for keeping keys in environment variables. It does work under Linux but on Windows you cannot make it. # store IFS first SAVEIFS=$IFS IFS='' #udate environment variable export EDT_SFTP_PRIVATE_KEY="$(cat Edt_Private.key)" #check whether it is well exported echo $EDT_SFTP_PRIVATE_KEY #set IFS back IFS=$SAVEIFS Another solution is to keep key stored in base64 format so you doesnt handle enters: export EDT_SFTP_PRIVATE_KEY="$(cat Edt_Private.key) | base64 -w0"

[bitcoins-directory]

It's not your Bitcoins if you don't control their private keys (Please, check your backup & move your precious coins from exchanges)

https://www.reddit.com/r/Bitcoin/comments/68sjcv/psa_its_not_your_bitcoins_if_you_dont_control/

[cypherhead]

Coinbase Design Director Connie Yang Private Key Halloween costume

[rwatimes]

Casascius Bitcoin: The "Physical" Coins Carrying Billions in Digital Gold

➤ Casascius Bitcoin coins are rare, physical collectibles created between 2011-2013, each containing a private key for real Bitcoin, now valued in the billions. ➤ Production ceased in 2013 due to U.S. regulatory guidance classifying the activity as money transmission, leading to a fixed and scarce supply. ➤ These coins are now considered hybrid assets, combining bearer instrument, collectible, and historical significance, trading at premiums well above their underlying Bitcoin value.

[terrykimura]

A Couple Years Ago I Learned: SSH Config ProxyCommand vs IdentityFile

I was cleaning out my computer of cruft from my previous employer (I was gifted this work PC when the company disappeared at the end of its bankruptcy proceedings) and came across this SSH config stanza that I actually had to do some testing to set up:

Our servers rejected SSH access from all but a handful of jumphosts - which were not jumphosts as jumphosts and bastions are usually understood by most people, but full-fledged servers with shell environments on which most of our operations/support troubleshooting activities happened - and while all the jumphosts and most of the servers beyond them would get Salted with the SSH public keys we registered in a central location (to be rotated annually), one command and control server was so critical to the operation of our services that we very rarely upgraded it - for fear of it dying in the upgrade process and paralyzing our entire business - which resulted in it 1) not getting our SSH public keys via Salt, and 2) running an SSH version so old it did not know how to handle ED25519 keys.

All this to describe why I ended up with two separate SSH private keys - one for the command and control server, and one for the jumphost thru which I would connect to that C&C.

Tunnelling through the jumphost to connect to the C&C server was straightforward:

Host command # Command & Control server HostName command.tld.com ProxyCommand ssh -q jumphost nc %h %p Host jumphost HostName jumphost.tld.com IdentityFile ~/.ssh/myprivatekey [...]

But a problem then arose: does an `IdentityFile` in the `Host command` stanza make SSH use that private key to negotiate with 1) the C&C server, or 2) the jumphost in the ProxyCommand?

So I tested, and it turns out SSH uses 1) myprivatekey to negotiate with the jumphost (in the ProxyCommand), and then 2) commandkey to negotiate with the Command & Control server.

Host command # Command & Control server HostName command.tld.com ProxyCommand ssh -q jumphost nc %h %p IdentityFile ~/.ssh/commandkey Host jumphost HostName jumphost.tld.com IdentityFile ~/.ssh/myprivatekey [...]

[lovezacblr]

I'm worth $3,000,000 again 🙃

[allcryptosoftwarebitcoin]

Recovery lost cryptocurrency with allcryptosoftware

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