Generating an SSH key
Different repository hosting services have different minimum requirements for the length of the SSH key, varying from 2048 bits to 4096 bits. We recommend creating a 4096 bit key for increased security. Run the command below in your terminal to create a 4096 bit SSH key:
ssh-keygen -t rsa -b 4096 -f ~/Desktop/codemagic_ssh_key -q -N ""
This will create two new files on your desktop:
codemagic_ssh_key (private key) and
codemagic_ssh_key.pub (public key).