Pretty Good Privacy (PGP)

Now that you understand how PGP can be used, read this article to learn who developed PGP while taking note of the year it was developed. Be sure to read the sections on how PGP works as well as the encryption-decryption process using the public and private keys. As you will notice, the public keys versions are RSA that was previously discussed, and Diffie-Hellman that will be discussed in a later section.

Pretty Good Privacy or PGP is a popular program used to encrypt and decrypt email over the Internet, as well as authenticate messages with digital signatures and encrypted stored files.

Previously available as freeware and now only available as a low-cost commercial version, PGP was once the most widely used privacy-ensuring program by individuals and is also used by many corporations. It was developed by Philip R. Zimmermann in 1991 and has become a de facto standard for email security.

Source: Antonio Ieranò,
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