What is PGP encryption and How Pretty it Works?


PGP stands for pretty good privacy. You have to know what is PGP encryption. This pretty good privacy is well known for its program to encrypt and decrypt emails from the internet. Do you want hackers to steal your information? Do you want to keep your secure data at risk? Nobody wants to do that. The reason why online or internet hacking is famous because the hacker can easily crack your information with your simple details. You can’t keep everything by the human, you have to do some online transactions, and you have to share the information through online.

That’s the weapon of the hackers, the information you shared online can be stolen. Always try to secure your information you are using on the internet. Let us give an example if you want to send your private photos to your friends or family which you don’t want to share with anyone through email, and you don’t want hackers to steal the information. In that case, you can use this PGP encryption to protect your data from being hacked.

What is PGP encryption?

The PGP (Pretty Good Privacy) encryption is a process of protecting your data or encrypting and decrypting the emails through the internet. This is a popular program to authenticate your files with the digital signature services. It was free when it releases, and now you have to pay some money to get this program. This was mostly used encryption program by the individuals and some companies. The services introduced in 1991 and it works pretty fine. At the time of introduction and in the past this encryption went viral. The information you share with your friends or family should be confidential, and you don’t have to lose it at any cost. With the two factors validation, this PGP will protect your information you shared with your members.

How PGP encryption works?

cyber security

PGP (Pretty Good Privacy) is a process of combining two validation keys, and they are public key and private key. First, every person will get the public key, and it is available for all whom he shared with.

Moreover, the private key is confidential and it is only available to the user. Whenever someone sends the information to me, he or she has to know the recipient public key.

Once the mail or the information forwarded, the user has to validate it with their public key and private key. This is how PGP uses the key validation process to encrypt the data. Receiver should know the public and private keys both. In simple words, you can encrypt your data with their public key and they will decrypt the data using the private key.

Encrypting the entire message will be time-consuming process, so PGP is introduced the new algorithm. PGP uses this faster encryption method to reduce the time consumption. First, the short key will encrypt the entire message, and then the public key will encrypt the short key.

This is how the new algorithm works. Once the encrypted message received by the user, he has to decrypt the short key, and then he has to decrypt the public key. First, the receiver will use his private key to decrypt the short key. Also, then the encrypted message will be decrypted by using that short key. This will be the secured process to encrypt and to authenticate the information.

PGP uses two versions of the public key they are “RSA and Diffie-Hellman”. First, PGP register the license key from RSA. The RSA uses IDEA algorithm to generate the short key. And then RSA will encrypt the short key. The Diffie-Hellman will use the CAST algorithm for the short key to encrypt the entire message.

PGP Digital Signature

pgp digital signature
Digital signature encrypting in PGP

PGP uses another algorithm to generate the digital signatures. The algorithm will generate a code from the sender’s name and signature details. Then the code is encrypted by the sender, and once the receiver received that, he has to decrypt the code by using the sender’s public key.

If the code is matched, then the code becomes the digital signature for the message. This is to verify that the receiver received the information from the assigned sender. This PGP services had the good impression from the user, and later it slowly negotiated.

How to get PGP?

You can download PGP for Windows or Mac, and you can register online. Once you downloaded and installed the program, the PGP server will give you the PGP public key. As you know this key helps to share the information, PGP free version is available to older versions of Windows, Mac, DOS and other operating systems. In 2010, Symantec got the rights of PGP and held the free version of PGP.

PGP has become the most popular standard for email encryption. In addition to encrypting and decrypting the messages, PGP used to sign messages so that the receiver can verify the identity of the sender at the same time he can decrypt the content. This technology is also known as GPG (Gnu privacy guard).

What PGP does?

PGP explained

Here are the things which you can say How PGP works, but the concept of PGP is to give the bigger encryption to the emails.

It verifies automated messages from the sender and also it will authenticate from where the messages are received. When you receive the encrypted, automated emails, it may have the sensitive information such as account recovery instructions or something. PGP will allow you to receive these encrypted emails.

PGP also has another version which we can call it as open PGP. The founder of the PGP introduced this version to remove the license issues. The term open PGP can be used to describe that the program supports the open PGP system. Open PGP will be easier, and you don’t have to face the listening issues while you are decrypting the message.

This is the whole thing about what is PGP encryption. The PGP encryption will allow you to secure your email and you can use two keys to validate. This will be the higher authentication process to secure information.