110.3 - Securing data with encryption

Weight: 3

Description: The candidate should be able to use public key techniques to secure data and communication.

Key Knowledge Areas:

  • Perform basic OpenSSH 2 client configuration and usage
  • Understand the role of OpenSSH 2 server host keys
  • Perform basic GnuPG configuration, usage and revocation
  • Understand SSH port tunnels (including X11 tunnels)

Terms and Utilities:

  • ssh
  • ssh-keygen
  • ssh-agent
  • ssh-add
  • ~/.ssh/id_rsa and id_rsa.pub
  • ~/.ssh/id_dsa and id_dsa.pub
  • /etc/ssh/ssh_host_rsa_key and ssh_host_rsa_key.pub
  • /etc/ssh/ssh_host_dsa_key and ssh_host_dsa_key.pub
  • ~/.ssh/authorized_keys
  • ssh_known_hosts
  • gpg
  • ~/.gnupg/
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