This book is about learning to protect data with encryption. It’s a combination primer, story, guide, and handbook on how to use Gnu Privacy Guard (GnuPG) encryption software to protect data in motion (messages or files being sent over the Internet), followed by a brief discussion of how to protect data at rest by using full disk encryption (FDE) on modern operating systems (OSes). You will learn to use cryptography in a practical way: to encrypt and to decrypt a message or file, to validate a digitally signed message or file, to manage encryption keys, and to work securely with encryption tools. |
