It combines symmetric-key cryptography and public-key cryptography to provide security services for communications and data storage. OpenPGP is a non-proprietary format for authenticating and encrypting data, and an open email encryption standard, based on the PGP software. Generating website security certificates.ĭue to the importance of PGP encryption, in 1997, the Internet Engineering Task Force (IETF) started a working group to create the OpenPGP standard.Digitally signing messages as a way of verifying its authenticity.Increasing security in email communications.Signing, encrypting and decrypting texts, emails, files, directories, etc.If you are interested in public-key authentication, our guide to set up SSH keys on Linux might also be helpful. Although it might seem complex, many current email applications offering PGP make the encryption and decryption process simpler for users. This public-private key pair keeps data safe, as data can only be decrypted using the private key matching the public key. When PGP compresses the data, a random private key is automatically generated. Using PGP, data is encrypted so that it can only be decrypted using a public key, which is associated with a username or email address. However, when sending the encryption key between them, the symmetric key must be encrypted using an asymmetric or public-key cryptography system. In symmetric-key encryption, both the sender and the recipient have the same key. It also supports digital signatures message authentication - to verify the sender - and integrity checking - to verify that the message has not been altered. PGP provides cryptographic authentication and privacy for data communication and transfer. It was initially made available for download via public FTP, before going international via the Internet. PGP was developed and published by Philip Zimmermann, a North American computer scientist and cryptographer, in 1991. PGP or Pretty Good Privacy is an encryption software combining data compression, hashing, symmetric-key cryptography and public-key cryptography. 4.1 Versions of GNU Privacy Guard What is PGP encryption?
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