generate public key code example

Example 1: create a ssh key

ssh-keygen -t rsa -C "[email protected]"

Example 2: create public key from private

chmod 400 ~/.ssh/id_rsa
ssh-keygen -y -f ~/.ssh/id_rsa > ~/.ssh/id_rsa.pub

Example 3: get public key from certificate

openssl x509 -inform der -in certificate.der -pubkey -noout > public_key.pem

Example 4: how to generate my RSA key pair

myLocalHost% ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key(/home/johndoe/.ssh/id_rsa):

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