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Re: [Survey] Signed push

From
Sam Vilain <sam@vilain.net>
Date
Sep 14, 2011, 00:31 UTC
Message-ID
<4E6FF5D9.3080709@vilain.net>
In-Reply-To
<7vaaa8xufi.fsf@alter.siamese.dyndns.org>
On 9/13/11 9:45 AM, Junio C Hamano wrote:
Show 18 quoted lines
>   * You push out your work with "git push -s";
>
>   * "git push" prepares a "push certificate" (it is meant to certify "these
>     are the commits I place at the tips of these refs"), which is a human
>     and machine readable text file in core, that may look like this:
>
>          Push-Certificate-Version: 0
>          Pusher: Junio C Hamano<gitster@pobox.com>
>          Update: 3793ac56b4c4f9bf0bddc306a0cec21118683728 refs/heads/master
>          Update: 12850bec0c24b529c9a9df6a95ad4bdeea39373e refs/heads/next
>
>     and asks you to GPG sign it. You only unlock your GPG key and the
>     command internally runs GPG, just like "tag -s".
>
>   * When "git push" finishes, the receiving end has this record in its
>     refs/notes/signed-push notes tree, together with your previous pushes
>     (as this is not a shared repository, it will record only your pushes).
>     The notes annnotate the commits named on the "Update:" lines above.

If the push certificate also has the previous commit IDs for the changed refs, then you actually have an audit log. Otherwise, it does not certify the commit range they pushed.

This is an important prerequisite for a fully distributed, peer to peer git. For this case it would also need something to distinguish which repository is to be updated; such as a canonical repository URL (or list of URLs), or just a short project name. A P2P protocol can then know projects as (KEYID, projectname).

Sam
Previous: Junio C HamanoNext: Shawn Pearce
Message 8 of 62 in “[Survey] Signed push”
  1. Junio C HamanoSep 13, 2011
  2. 0/2 State commit name explicitly in request-pull messagesJunio C Hamano, Sep 13, 2011
  3. 1/2 fetch: allow asking for an explicit commit object by nameJunio C Hamano, Sep 13, 2011
  4. 2/2 request-pull: state exact commit object nameJunio C Hamano, Sep 13, 2011
  5. Guenter RoeckSep 13, 2011
  6. Junio C HamanoSep 13, 2011
  7. Junio C HamanoSep 14, 2011
  8. Sam VilainSep 14, 2011
  9. Shawn PearceSep 14, 2011
  10. Sam VilainSep 14, 2011
  11. Nguyen Thai Ngoc DuySep 14, 2011
  12. Jonathan NiederSep 14, 2011
  13. Nguyen Thai Ngoc DuySep 14, 2011
  14. Jeff KingSep 15, 2011
  15. Andy LutomirskiSep 14, 2011
  16. Junio C HamanoSep 14, 2011
  17. Andrew LutomirskiSep 14, 2011
  18. Fwd: [Survey] Signed pushLinus Torvalds, Sep 14, 2011
  19. Michael HaggertySep 14, 2011
  20. Matthieu MoySep 14, 2011
  21. Nguyen Thai Ngoc DuySep 14, 2011
  22. Johan HerlandSep 14, 2011
  23. Ted Ts'oSep 14, 2011
  24. Linus TorvaldsSep 14, 2011
  25. Matthieu MoySep 14, 2011
  26. Johan HerlandSep 14, 2011
  27. Philip OakleySep 14, 2011
  28. Linus TorvaldsSep 14, 2011
  29. Junio C HamanoSep 14, 2011
  30. Linus TorvaldsSep 14, 2011
  31. Junio C HamanoSep 14, 2011
  32. Linus TorvaldsSep 14, 2011
  33. Junio C HamanoSep 14, 2011
  34. Sam VilainSep 14, 2011
  35. request-pull: state what commit to expectJunio C Hamano, Sep 16, 2011
  36. Junio C HamanoSep 20, 2011
  37. 2/3 branch: teach --edit-description optionJunio C Hamano, Sep 20, 2011
  38. Andrew ArdillSep 21, 2011
  39. Junio C HamanoSep 21, 2011
  40. request-pull: use the branch descriptionJunio C Hamano, Sep 20, 2011
  41. 0/6 A handful of "branch description" patchesJunio C Hamano, Sep 22, 2011
  42. 1/6 branch: add read_branch_desc() helper functionJunio C Hamano, Sep 22, 2011
  43. 2/6 format-patch: use branch description in cover letterJunio C Hamano, Sep 22, 2011
  44. 3/6 branch: teach --edit-description optionJunio C Hamano, Sep 22, 2011
  45. Michael J GruberSep 23, 2011
  46. Nguyen Thai Ngoc DuySep 23, 2011
  47. Junio C HamanoSep 23, 2011
  48. Nguyen Thai Ngoc DuySep 25, 2011
  49. 4/6 request-pull: modernize styleJunio C Hamano, Sep 22, 2011
  50. 5/6 request-pull: state what commit to expectJunio C Hamano, Sep 22, 2011
  51. 6/6 request-pull: use the branch descriptionJunio C Hamano, Sep 22, 2011
  52. Michael J GruberSep 23, 2011
  53. Jeff KingSep 23, 2011
  54. Junio C HamanoSep 23, 2011
  55. Jeff KingSep 23, 2011
  56. Michael J GruberSep 24, 2011
  57. Jeff KingSep 27, 2011
  58. Annotated branch ≈ annotated tag?Michael Haggerty, Sep 28, 2011
  59. Andrew ArdillSep 28, 2011
  60. Michael HaggertySep 28, 2011
  61. Branch annotations [Re: Annotated branch ≈ annotated tag?]Michael J Gruber, Sep 28, 2011
  62. Jeff KingSep 29, 2011

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