1. in 20 minutes......
José María Casanova Crespo
Master on Free Software

2. GNU Privacy Guard
● GNU Privacy Guard (GnuPG or GPG) is a
replacement for the PGP suite of
cryptographic software.
● PGP is interoperable with GPG.
● Encryption is based in asymmetric
keypairs generated by GPG software.
● The encryption system relies in the
confidence of the keys.
Master on Free Software

3. Public Key
● can be public available, usually stored in
public servers. http://pgp.mit.edu
● used by people to send you messages
that can only be decrypted using your
private key.
● is used to validate data signed with your
private key.
● People can sign your public key
confirming that it belongs to you
Master on Free Software