Search Results: "Michael Stone"

1 February 2016

Lunar: Reproducible builds: week 40 in Stretch cycle

What happened in the reproducible builds effort between January 24th and January 30th:

Media coverage Holger Levsen was interviewed by the FOSDEM team to introduce his talk on Sunday 31st.

Toolchain fixes Jonas Smedegaard uploaded d-shlibs/0.63 which makes the order of dependencies generated by d-devlibdeps stable accross locales. Original patch by Reiner Herrmann.

Packages fixed The following 53 packages have become reproducible due to changes in their build dependencies: appstream-glib, aptitude, arbtt, btrfs-tools, cinnamon-settings-daemon, cppcheck, debian-security-support, easytag, gitit, gnash, gnome-control-center, gnome-keyring, gnome-shell, gnome-software, graphite2, gtk+2.0, gupnp, gvfs, gyp, hgview, htmlcxx, i3status, imms, irker, jmapviewer, katarakt, kmod, lastpass-cli, libaccounts-glib, libam7xxx, libldm, libopenobex, libsecret, linthesia, mate-session-manager, mpris-remote, network-manager, paprefs, php-opencloud, pisa, pyacidobasic, python-pymzml, python-pyscss, qtquick1-opensource-src, rdkit, ruby-rails-html-sanitizer, shellex, slony1-2, spacezero, spamprobe, sugar-toolkit-gtk3, tachyon, tgt. The following packages became reproducible after getting fixed: Some uploads fixed some reproducibility issues, but not all of them:
  • gnubg/1.05.000-4 by Russ Allbery.
  • grcompiler/4.2-6 by Hideki Yamane.
  • sdlgfx/2.0.25-5 fix by Felix Geyer, uploaded by Gianfranco Costamagna.
Patches submitted which have not made their way to the archive yet:
  • #812876 on glib2.0 by Lunar: ensure that functions are sorted using the C locale when giotypefuncs.c is generated.

diffoscope development diffoscope 48 was released on January 26th. It fixes several issues introduced by the retrieval of extra symbols from Debian debug packages. It also restores compatibility with older versions of binutils which does not support readelf --decompress.

strip-nondeterminism development strip-nondeterminism 0.015-1 was uploaded on January 27th. It fixes handling of signed JAR files which are now going to be ignored to keep the signatures intact.

Package reviews 54 reviews have been removed, 36 added and 17 updated in the previous week. 30 new FTBFS bugs have been submitted by Chris Lamb, Michael Tautschnig, Mattia Rizzolo, Tobias Frost.

Misc. Alexander Couzens and Bryan Newbold have been busy fixing more issues in OpenWrt. Version 1.6.3 of FreeBSD's package manager pkg(8) now supports SOURCE_DATE_EPOCH. Ross Karchner did a lightning talk about reproducible builds at his work place and shared the slides.

23 April 2010

Jonathan McDowell: Out, damn'd PGP v3

Nearly a year ago people starting worrying about the complexity of SHA-1 being reduced and the potential availability of viable attacks against things such as PGP keys that used SHA-1. Many people (myself included) generated a new key, or updated preferences on keys that were otherwise strong enough. There were worries about what this might mean for Debian. We were getting ahead of ourselves a bit though. Firstly there haven't been any public viable attacks that I'm aware of (though of course this doesn't mean we shouldn't continue to migrate away), but secondly there's a much easier method of attack. PGP v3 keys. To quote RFC4880:

V3 keys are deprecated. They contain three weaknesses. First, it is relatively easy to construct a V3 key that has the same Key ID as any other key because the Key ID is simply the low 64 bits of the public modulus. Secondly, because the fingerprint of a V3 key hashes the key material, but not its length, there is an increased opportunity for fingerprint collisions. Third, there are weaknesses in the MD5 hash algorithm that make developers prefer other algorithms. See below for a fuller discussion of Key IDs and fingerprints.
At the time of writing Debian has 21 remaining v3 keys. This is a significant improvement over a year ago, when we had 200, but it's still 21 more than I'd like. I've been chasing people since last May (starting with those who had v3 + v4 keys, all of whom now only have a v4 key) and we're down to the stragglers. So it's time to name and shame, in the hope of kicking them into action. The following keys are what's left (doesn't match the currently active keyring because we've had a few replacements since the last promote): 

0x0D2156BD3D97C149 Michael Stone <mstone>
0x225FD911CD269B31 Carlos Barros <cbf>
0x31E73F14E298966D James R. Van Zandt <jrv>
0x366CD3FEEBC11B01 Chris Waters <xtifr>
0x37A73FE355E8BC4D Frederic Lepied <lepied>
0x3E973117DCC528E9 Ardo van Rangelrooij <ardo>
0x5C7A46637953F711 Rich Sahlender <rsahlen>
0x5D6560F85F30F005 Craig Brozefsky <craig>
0x6B0E322836129171 Jim Westveer <jwest>
0x723724B4A5B6DD31 Christian Meder <meder>
0x7629B22ED71DAABD Adrian Bridgett <bridgett>
0x8FFC405EFD5A67CD Adam Di Carlo <aph>
0xB0D269DE17F3D4D1 Matthew Vernon <matthew>
0xBC151FC8D2A913A1 Peter S Galbraith <psg>
0xC1A0A171C2DCD3B1 Jim Mintha <jmintha>
0xC3168EBA23F5ADDB Ian Jackson <iwj>
0xCE951B1160D74C7D Patrick Cole <ltd>
0xE82A8B0D57137FE5 Paul Seelig <pseelig>
0xF20E242CE77AC835 Brian White <bcwhite>
0xFBAA570C3087194D Alan Bain <afrb2>
0xFFD1B4AC7C19FD19 David Engel <david>

Of these keys only 2 voted in the recent DPL election. 8 have failed to make any response to my mails (3 since last August). Only 9 have uploaded a package since August 2008. And 10 were already known to the MIA database. Some of them have stated they'll sort out a new key, but not yet done so.

If you are one of these people, please either get a new key sorted and signed and reply to the mails I've sent you, or reply and say you no longer wish to be involved in Debian. And if you know any of these people, encourage them to get a new key sorted and offer to sign it for them.