How to build a simple VPN service for your personal data?
Posted February 06, 2019 10:56:00 By now you’ve heard about how to create an encrypted VPN service, how to encrypt your data and how to use encryption with VPNs.
You’ve probably heard about VPNs as a means to protect your personal information from prying eyes and the like, but in reality they are also a great tool for private communication.
With all the various methods of communication, encryption and privacy, it’s important to know how to make sure you’re protecting your data against hackers and other prying prying things.
For example, if your data is encrypted, you need to be very careful to keep your VPN server secret from pry eyes.
In order to encrypt a VPN connection, you’ll need to create a key pair.
This is where your VPN service’s encryption keys are stored.
These keys are used to encrypt the VPN connection and your personal files.
So what exactly does a key-pair look like?
It’s the same as a password in the classic password guessing game, but with a bit of extra context.
For each VPN server you use, you create a unique key pair which you then send to the VPN server.
The server encrypts the key and sends you back the encrypted copy of the key.
If you use a VPN service that uses a public key to encrypt, you must also use a private key for each VPN connection.
If your private key is used for encryption, you only need to store it in the file system on the VPN device.
The file system contains the key pair that you send and receive.
The next step is to generate a key.
In this tutorial, I’ll show you how to generate an RSA key pair using the OpenSSL library.
Let’s get started!
Creating a RSA key Pair This tutorial will assume you already have an existing RSA key.
To generate the key, open the OpenVPN configuration file and click the Generate button.
This will generate a new file named “openssl.pem” that contains a list of public and private RSA keys.
To get started, click the Add button and enter your public key in the Name field.
For the RSA key, enter “my_rsa_key”.
Next, click Add to create the key for your VPN connection: The dialog box will ask you to provide a passphrase to protect the key against being accidentally compromised.
Enter your passphrase and click OK to close the dialog box.
Next, open a new Terminal window.
Type the following command to generate the RSA keys for your connection: openssl rsa -pubout my_rsac_key.pax -out my.pcap Note the first line of the output.
This line is what openssl reads from your key file and passes to the RSA library.
Next up, we’ll create the RSA private key: type: openssh -n -f my_private_key my.pub The -f option tells openssl to print the contents of the file that is passed to the library.
The -n option specifies which line of output openssl is looking at.
In my case, I have the key file on my computer and a file called my.key on my keyring.
The line openssl prints the key line, and openssl then uses this line to print out the private key line.
Next we need to save the key on your keyring, using: type /etc/ssh/ssh_config to save your RSA private and public keys: You’ll see the line openssh saves your RSA key on /etc/.ssh/keys.
For my VPN server, I saved the keyfile as /etc/$VPN.key.
Now we need the key to decrypt our VPN connection to our private VPN server: type sh -c ‘echo “$VPN.public_key” > my.crt’ You’ll notice the key is saved to the /etc directory.
To decrypt the key from the VPN’s private VPN connection using the public key, we can use the key we saved on our keyring as a key for decrypting the VPN key.
type sh-c ‘ssh-keygen -t rsa2048 -f ~/my.key’ You should see a line like this: $VPN.