I was trying to install docker on my Ubuntu server as an initial step to set up a continuous integration server for my Python project. As I was following through the guide provided by docker, the following command:
gave me the following error:
I would like to know how to generate a fingerprint for an openPGP public key. To be clear, I'm interested in how the fingerprint is generated. I'm aware that I can get the fingerprint with a commandline tool. I've consulted the PGP docs here, but haven't been able to reproduce. Oct 24, 2018 Ubuntu 18.04 Setup SSH Public Key Authentication. The procedure to set up secure ssh keys on Ubuntu 18.04: Create the key pair using ssh-keygen command. Copy and install the public key using ssh-copy-id command. Add yourself to sudo admin account on Ubuntu 18.04 server.
Generate Pgp Public Key Ubuntu Windows 7
This is achieved by appending the signature using the private key generated which will be verified by the recipient’s copy of the sender’s public key. Here, we show you the steps to take for installing and configuring GnuPG on Ubuntu 18.04. Sep 06, 2017 Introduction 'GnuPG uses public-key cryptography so that users may communicate securely. In a public-key system, each user has a pair of keys consisting of a private key and a public key.
I did a ping afterwards and affirmed that my server was not able to reach the key server at
p80.pool.sks-keyservers.net
. Since I was not able to add the PGP public key of docker's apt repository, I was not able to continue with the
apt-get update
command further down the guide.Looking for the PGP public key of docker's apt repository server at p80.pool.sks-keyservers.net
Since I was not able to get the PGP public key automatically with the apt-key command inside my Ubuntu server, I thought about trying to add the key manually on my Ubuntu server.
I first tried to use my browser on my Windows machine to access the url specified by the
--keyserver
flag of the apt-key
command. With that, I got to know that there is a web server running at p80.pool.sks-keyservers.net.My browser returned me a web page with a search box and two buttons - 'Search Key' and 'Submit Key'. Since I wanted to get the contents of the public PGP key of docker's apt repository, I typed 'docker' into the search box, hit the 'Search Key' button and was returned with a list of PGP public keys. And since I had indicated
58118E89F3A912897C070ADBF76221572C52609D
via the --recv-keys
flag in the apt-key
command, I get my browser to find the section that contains the string '5811'. Indeed, there were some results and my browser highlighted the portion containing the '5811'. I click on the first link in the section that contains 'Fingerprint=5811 8E89 F3A9 1289 7C07 0ADB F762 2157 2C52 609D' and was returned with a page that displays the PGP public key that I was looking for.
Simplifying your search will return more results from the database. The word 'crack' in warez context means the action of removing the copy protection from commercial software.
Creating a physical file of the public PGP key
I then proceeded to create a physical file in my Ubuntu server via the
vi
editor. Note that the display page contains text that was irrelevant for the apt-key command. The PGP public key consists of only the following chunk:After I saved the file on my Ubuntu server as 58118E89F3A912897C070ADBF76221572C52609D.key in my current working directory, I proceeded to add it into the APT key store on my Ubuntu server.
The command to manually add the public PGP key of docker's apt repository at Ubuntu's Advanced Packaging Tool key store
With everything in place, I ran the following command:
The command returns the string 'OK' and I was able to continue with the installation of docker-engine on my Ubuntu server.
For added assurance, when you use Azure Key Vault, you can import or generate keys in hardware security modules (HSMs) that never leave the HSM boundary. This scenario is often referred to as bring your own key, or BYOK. Azure Key Vault uses nCipher nShield family of HSMs (FIPS 140-2 Level 2 validated) to protect your keys. Can a virtual hsm generate dukpt keys on mac.
About Clivant
Clivant a.k.a Chai Heng enjoys composing software and building systems to serve people. He owns techcoil.com and hopes that whatever he had written and built so far had benefited people. All views expressed belongs to him and are not representative of the company that he works/worked for.