After a user generates his own GPG keypair, the very next step is to exchange the public key with others with whom the user wants to have encrypted communications. The user also needs to sign his own GPG keys as well as those of others. Now, what is the signing of...

When a user generates a GPG public-private key pair, some information is stored along with the key-id. Using the –edit-key option, one can edit the information stored with the key. (How to generate a GPG key pair?) How to add or delete key components of a GPG key? To...

PGP uses public-key cryptography for encryption and decryption. After installing GPG, you would first need to generate a GPG public-private key pair. If you want to send an encrypted document to someone, you would need to encrypt the document using the recipient's...

Digital signatures are made to verify the authenticity and integrity of a document. One can digitally sign a document using GPG to ensure that the document has indeed come from the intended sender and is unmodified after it is signed by the sender. In GPG, a user...

In the previous article, we discussed how to install GPG. After the installation of GPG, the very next step is to generate a private-public key pair. GPG can be used as a command-line tool. One can generate a keypair using various command-line options and do...