Editing Pretty Good Privacy (section)

{{Distinguish|GNU Privacy Guard{{!}}GNU Privacy Guard (GPG)}}
{{short description|Computer program for data encryption, primarily in email (PGP)}}
{{multiple issues|
{{update|OpenPGP standards|date=November 2024}}
{{More citations needed|date=November 2023}}
{{Overly detailed|date=November 2023}}}}
{{split|OpenPGP|date=February 2024|discuss=Talk:Pretty Good Privacy#Split proposed}}
{{Use mdy dates|date=August 2016}}
{{Infobox software
| title = Pretty Good Privacy
| name = Symantec Endpoint Encryption; Pretty Good Privacy (formerly)
| author = {{unbulleted list
 |[[Phil Zimmermann]]
 |PGP Inc.
 |Network Associates
 |[[PGP Corporation|PGP Corp.]]<ref>{{cite web
 |url=https://philzimmermann.com/EN/findpgp/
 |title=Where to Get PGP
 |date=28 February 2006<!--from Firefox page info-->
 |website=philzimmermann.com
 |publisher=Phil Zimmermann & Associates LLC
 |access-date=March 10, 2016
 |archive-date=February 26, 2014
 |archive-url=https://web.archive.org/web/20140226011248/http://philzimmermann.com/EN/findpgp/
 |url-status=live
 }}</ref>
}}
| developer = [[Broadcom Inc.]]
| released = {{Start date and age|1991}}
| ver layout = simple
| latest release version = 11.4.0 Maintenance Pack 2
| latest release date = {{Start date and age|2023|05|23}}<ref>{{cite web |title=Symantec Endpoint Encryption 11.4.0 Maintenance Pack 2 Release Notes |url=https://techdocs.broadcom.com/us/en/symantec-security-software/information-security/encryption/11-4-0/release-notes-main-page/see-11-4-0-maintenance-pack-2-release-notes.html |website=techdocs.broadcom.com |access-date=February 16, 2024 |archive-date=October 5, 2024 |archive-url=https://web.archive.org/web/20241005182403/https://techdocs.broadcom.com/us/en/symantec-security-software/information-security/encryption/11-4-0/release-notes-main-page/see-11-4-0-maintenance-pack-2-release-notes.html |url-status=live }}</ref>
| programming language = [[C (programming language)|C]]
| operating system = [[macOS]], [[Windows]]<ref>{{cite web |title=System requirements for Symantec Endpoint Encryption Client |url=https://techdocs.broadcom.com/us/en/symantec-security-software/information-security/encryption/11-4-0/sys-req-home-page/see-client-sys-req.html |website=techdocs.broadcom.com |access-date=February 16, 2024 |archive-date=October 5, 2024 |archive-url=https://web.archive.org/web/20241005182349/https://techdocs.broadcom.com/us/en/symantec-security-software/information-security/encryption/11-4-0/sys-req-home-page/see-client-sys-req.html |url-status=live }}</ref>
| genre = [[Encryption software]]
| license = [[Commercial software|Commercial]] [[proprietary software]]

| size = 
| standard = {{unbulleted list
|OpenPGP: {{IETF RFC|4880|5581|6637|9580}}
|PGP/MIME: {{IETF RFC|2015|3156}}
}}
}}

'''Pretty Good Privacy''' ('''PGP''') is an [[encryption software|encryption program]] that provides [[cryptographic]] [[privacy]] and [[authentication]] for [[data communication]]. PGP is used for [[digital signature|signing]], encrypting, and decrypting texts, [[Email|e-mails]], files, directories, and whole disk partitions and to increase the [[security]] of e-mail communications. [[Phil Zimmermann]] developed PGP in 1991.<ref name=":0">{{cite web|last=Zimmermann|first=Philip R.|author-link=Phil Zimmermann|date=1999|title=Why I Wrote PGP|url=https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html|website=Essays on PGP|publisher=Phil Zimmermann & Associates LLC|access-date=July 6, 2014|archive-date=June 24, 2018|archive-url=https://web.archive.org/web/20180624122110/https://philzimmermann.com/EN/essays/WhyIWrotePGP.html|url-status=live}}</ref>

PGP and similar software follow the OpenPGP standard (<nowiki>RFC 4880</nowiki>), an [[open standard]] for [[encryption|encrypting]] and decrypting [[data]]. Modern versions of PGP are [[interoperability|interoperable]] with [[GnuPG]] and other OpenPGP-compliant systems.<ref>{{cite web |url= https://www.gnupg.org/faq/gnupg-faq.html#compatible |title= Gnu Privacy Guard |publisher= GnuPG.org |access-date= 2015-05-26 |archive-url= https://web.archive.org/web/20150429192132/https://www.gnupg.org/faq/gnupg-faq.html#compatible |archive-date= 2015-04-29 |url-status= live }}</ref>

The OpenPGP standard has received criticism for its long-lived keys and the difficulty in learning it,<ref>{{Cite web |date=2019-07-16 |title=The PGP Problem |url=https://www.latacora.com/blog/2019/07/16/the-pgp-problem |access-date=2024-11-22 |author=Latacora |language=en}}</ref> as well as the [[EFAIL|Efail]] security vulnerability that previously arose when select e-mail programs used OpenPGP with S/MIME.<ref>{{Cite web |title=Efail: Breaking S/MIME and OpenPGP Email Encryption using Exfiltration Channels |url=https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-poddebniak.pdf}}</ref><ref>{{Cite web |last=Yen |first=Andy |date=2018-05-15 |access-date=2025-01-22 |title=No, PGP is not broken, not even with the Efail vulnerabilities |website=Proton |url=https://proton.me/blog/pgp-vulnerability-efail}}</ref> The new OpenPGP standard (<nowiki>RFC 9580</nowiki>) has also been criticised by the maintainer of [[GnuPG]] [[Werner Koch]], who in response created his own specification LibrePGP.<ref name="LibrePGP"></ref> This response was dividing, with some embracing his alternative specification,<ref>{{Cite web |last1=Tse |first1=Ronald |last2=Olshevsky |first2=Nickolay |date=2024-07-22 |access-date=2025-01-22 |title=RNP proudly supports LibrePGP |website=RNP |url=https://www.rnpgp.org/blog/2024-07-22-rnp-and-librepgp}}</ref> and others considering it to be insecure.<ref>{{Cite web |last=Gallagher |first=Andrew |date=2024-09-11 |access-date=2025-01-22 |title=A Summary of Known Security Issues in LibrePGP |url=https://blog.pgpkeys.eu/security-issues-librepgp-2024-08.html}}</ref>