LPI Linux Certification/Securing data with encryption

Detailed Objectives (LPIC-1 Version 5.0) Weight: 4 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. Use GPG to encrypt, decrypt, sign and verify files. Understand SSH port tunnels (including X11 tunnels). The following is a partial list of the used files, terms and utilities: ssh ssh-keygen ssh-agent ssh-add ~/.ssh/id_rsa and id_rsa.pub ~/.ssh/id_dsa and id_dsa.pub ~/.ssh/id_ecdsa and id_ecdsa.pub ~/.ssh/id_ed25519 and id_ed25519.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 /etc/ssh/ssh_host_ecdsa_key and ssh_host_ecdsa_key.pub /etc/ssh/ssh_host_ed25519_key and ssh_host_ed25519_key.pub ~/.ssh/authorized_keys ssh_known_hosts gpg gpg-agent ~/.gnupg/