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Add information about .asc keys when adding 3rd party repos#707

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add-asc-info
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Add information about .asc keys when adding 3rd party repos#707
renanrodrigo wants to merge 1 commit into
mainfrom
add-asc-info

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Description

This PR adds information on how to configure .asc keys as signing keys for third party repositories.
Many projects publish their signing keys in the ASCII-armored format, and we specify here how to dearmor it and when it would be needed.


Related Issue

Fixes: #706


Checklist

  • I have read and followed the Ubuntu Server contributing guide.
  • My pull request is linked to an existing issue (if applicable).
  • I have tested my changes, and they work as expected.

Thank you for contributing to the Ubuntu Server documentation!

you welcome

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Pull request overview

This PR updates the Ubuntu Server documentation on using third-party APT repositories to explain ASCII-armored (.asc) signing keys, including when (and how) to dearmor them for use with Signed-By.

Changes:

  • Adds an explanation of ASCII-armored (.asc) vs binary (.gpg/.pgp) repository signing keys.
  • Documents downloading an .asc key and optionally converting it with gpg --dearmor.
  • Updates examples for both deb822 (.sources) and one-line (.list) sources to show appropriate Signed-By/signed-by usage.

Comment thread docs/explanation/software/third-party-repository-usage.md
Comment thread docs/explanation/software/third-party-repository-usage.md Outdated
Comment thread docs/explanation/software/third-party-repository-usage.md Outdated
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Add information on how to use .asc keys when adding third party repositories

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