PGP (Pretty Good Privacy) is a powerful security and privacy tool used to protect information from being viewed by unauthorized individuals. PGP is a type of encryption that uses various algorithms and protocols to encrypt and decrypt data. This data can include emails, files, folders, and even entire hard drives. PGP is also used to digitally sign documents to prove authenticity and integrity. PGP utilizes a combination of public key cryptography, hash functions, and symmetric key algorithms to provide secure communication between two or more parties. A public key is used to encrypt data and a private key is used to decrypt data. The public key is shared with anyone you want to be able to send you encrypted data and the private key is kept secret and used to decrypt the data. PGP also includes a digital signature feature which allows for the user to verify the authenticity and integrity of a message. This is done by encrypting a message with the sender's private key and then allowing the recipient to decrypt the message with the sender's public key. PGP Tools are available in the form of applications, websites, and plugins. These tools can be used to generate keys, encrypt and decrypt data, digitally sign documents, and more. Many email clients such as Outlook and Gmail also provide support for PGP encryption and digital signatures.
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