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2023-01-02docs: maintainer-pgp-guide: update for latest gnupg defaultsKonstantin Ryabitsev
It is finally becoming increasingly rare to find a distribution that still ships with gnupg-1.x, so remove the last vestiges of "gpg" vs "gpg2" from documentation. Similarly, starting with GnuPG 2.2 and above, the default --gen-key operation creates ed25519/cv25519 keypairs, so update all example command outputs to use that combination instead of rsa2048. Lastly, add a few wording tweaks and remove links that lead to stale information (e.g. hardware tokens overview from 2017). Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/20221220-docs-pgp-guide-v1-1-9b0c0bf974fb@linuxfoundation.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-08-18maintainer-pgp-guide: minor wording tweaksKonstantin Ryabitsev
Tweak some wording to remove redundant information. Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-5-e3e6954affb6@linuxfoundation.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-08-18maintainer-pgp-guide: add a section on PGP-signed patchesKonstantin Ryabitsev
With more developers beginning to use b4 and patatt, add a section to the guide that talks about setting up and using patatt for PGP-signing patch submissions. Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-4-e3e6954affb6@linuxfoundation.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-08-18maintainer-pgp-guide: update ECC support informationKonstantin Ryabitsev
Update ECC sections with the latest details, now that Yubikeys are able to support ED25519 curves. Tweak a few links to smartcard devices to reflect the latest URL changes. Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-3-e3e6954affb6@linuxfoundation.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-08-18maintainer-pgp-guide: remove keyserver instructionsKonstantin Ryabitsev
Keyservers are largely a thing of the past with the replacement systems like keys.openpgp.net specifically designed to offer no support for the web of trust. Remove all sections that talk about keyservers and add a small section with the link to kernel.org documentation that talks about using the kernel.org public key repository. Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-2-e3e6954affb6@linuxfoundation.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-08-18maintainer-pgp-guide: use key terminology consistent with upstreamKonstantin Ryabitsev
GnuPG does not use the word "master key" when referring to the subkey marked with the "certification" capability. Our use of this term was not only inconsistent, but also misleading, because in real life "master keys" are able to open multiple locks made for different keys, while PGP Certify key has no such capability. Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/20220727-docs-pgp-guide-v2-1-e3e6954affb6@linuxfoundation.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-08-24Documentation/process/maintainer-pgp-guide: Replace broken link to PGP path ↵SeongJae Park
finder PGP pathfinder[1], which is suggested for finding a trust path to unknown PGP keys by 'maintainer-pgp-guide.rst', is not working now. This commit replaces it with other available tools. [1] https://pgp.cs.uu.nl/ Signed-off-by: SeongJae Park <sjpark@amazon.de> Reviewed-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/20210812095030.4704-2-sj38.park@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-06-26Replace HTTP links with HTTPS ones: Documentation/processAlexander A. Klimov
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Link: https://lore.kernel.org/r/20200621133630.46435-1-grandmaster@al2klimov.de Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-26Documentation: PGP: update for newer HW devicesKonstantin Ryabitsev
Newer devices like Yubikey 5 and Nitrokey Pro 2 have added support for NISTP's implementation of ECC cryptography, so update the guide accordingly and add a note on when to use nistp256 and when to use ed25519 for generating S keys. Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-30doc: fix typo in PGP guideFederico Vaga
Fix typo in the GPG guide for maintainers Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-04-16Documentation/process: updates to the PGP guideKonstantin Ryabitsev
Small tweaks to the Maintainer PGP guide: - Use --quick-addkey command that is compatible between GnuPG-2.2 and GnuPG-2.1 (which many people still have) - Add a note about the Nitrokey program - Warn that some devices can't change the passphrase before there are keys on the card (specifically, Nitrokeys) - Link to the GnuPG wiki page about gpg-agent forwarding over ssh - Tell git to use gpgv2 instead of legacy gpgv when verifying signed tags or commits Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-02-06Documentation/process: tweak pgp maintainer guideKonstantin Ryabitsev
Based on the feedback provided: - Uniformly use lowercase k in "Linux kernel" - Give a one-sentence explanation of what subkeys are - Explain what signed commits might be useful for even if upstream developers do not use them for much of anything - Admonish to set up gpg-agent if signed commits are turned on in git config - Fix a typo reported by Luc Van Oostenryck Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-02-01Documentation/process: kernel maintainer PGP guideKonstantin Ryabitsev
This guide is an adapted version of the more general "Protecting Code Integrity" guide written and maintained by The Linux Foundation IT for use with open-source projects. It provides the oft-lacking guidance on the following topics: - how to properly protect one's PGP keys to minimize the risks of them being stolen and used maliciously to impersonate a kernel developer - how to configure Git to properly use GnuPG - when and how to use PGP with Git - how to verify fellow Linux Kernel developer identities I believe this document should live with the rest of the documentation describing proper processes one should follow when participating in kernel development. Placing it in a wiki on some place like kernel.org would be insufficient for a number of reasons -- primarily, because only a relatively small subset of maintainers have accounts on kernel.org, but also because even those who do rarely remember that such wiki exists. Keeping it with the rest of in-kernel docs should hopefully give it more visibility, but also help keep it up-to-date as tools and processes evolve. Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>