Changes between Version 60 and Version 61 of TorWeeklyNews/2013/4


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Timestamp:
Aug 1, 2013, 6:17:49 AM (6 years ago)
Author:
lunar
Comment:

TWN #4 has been sent

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  • TorWeeklyNews/2013/4

    v60 v61  
    33'''Editor for this week: dope457'''
    44
    5 '''Subject:''' Tor Weekly News — July, 31th 2013
    6 
    7 {{{
    8 ========================================================================
    9 Tor Weekly News                                          July 31st, 2013
    10 ========================================================================
    11 
    12 Welcome to the 5th issue of Tor Weekly News, the weekly newsletter that
    13 covers what is happening in the busy Tor community.
    14 
    15 Summer Developer Meeting Wrap-up
    16 --------------------------------
    17  
    18 The 2013 summer Tor development meeting happened at the Technische
    19 Universität München [1]. There were no formal talks during the meeting
    20 itself, but slides were still involved! [2]
    21 
    22 New minutes from sessions to add to those covered in the last
    23 edition [3] have been posted to the wiki [4]. This includes a second
    24 discussion on Pluggable Transports [5], the role of the Research
    25 Director [6], a summary of discussions with cryptographers Tanja
    26 Lange and djb about the cryptographic aspects of Tor [7],
    27 timesheets for Tor contractors [8] and mailing-lists [9].
    28 
    29 Christian Grothoff organized a talk with Roger Dingledine and Jacob
    30 Appelbaum at the university. Their initial topic was the censorship
    31 arms race, but given the up-to-date knowledge of the students and other
    32 attendees, the talk got turned into a marathon 4-hour long Q&A
    33 session! Thanks to Christian, the video is available from the GNUnet
    34 website [10].
    35 
    36 The following day was dedicated to more concrete hands-on discussions
    37 and coding. The public hackfest was well-attended, with more than 70
    38 people focusing on everything to do with Tor. Some attendees had even
    39 traveled several hundred kilometers to be there! Discussions popped up
    40 everywhere, code was written and some newcomers were introduced to the
    41 many elements that make up the Tor project.
    42 Thanks to everyone who showed up!
    43 
    44    [1] http://www.tum.de/
    45    [2] https://commons.wikimedia.org/wiki/File:050322-tumuenchen-parabeln.jpg
    46    [3] https://lists.torproject.org/pipermail/tor-news/2013-July/000004.html
    47    [4] https://trac.torproject.org/projects/tor/wiki/org/meetings/2013SummerDevMeeting
    48    [5] https://trac.torproject.org/projects/tor/wiki/org/meetings/2013SummerDevMeeting/PluggableTransports1
    49    [6] https://trac.torproject.org/projects/tor/wiki/org/meetings/2013SummerDevMeeting/ResearchDirector
    50    [7] https://trac.torproject.org/projects/tor/wiki/org/meetings/2013SummerDevMeeting/TorCrypto
    51    [8] https://trac.torproject.org/projects/tor/wiki/org/meetings/2013SummerDevMeeting/Timesheets
    52    [9] https://trac.torproject.org/projects/tor/wiki/org/meetings/2013SummerDevMeeting/MailingLists
    53   [10] https://gnunet.org/tor2013tum-video
    54 
    55 Comparing handshake protocols for Tor: Ace vs ntor
    56 --------------------------------------------------
    57 
    58 In WPES ’12, Esfandiar Mohammadi and Aniket Kate introduced Ace, an
    59 alternative for Tor’s current handshake protocol ntor. [11,12]
    60 
    61 Ace was already discussed on tor-dev at the end of 2012 [13],
    62 “but back then, no implementation for the double scalar multiplication
    63 operation (a * b + c * d) on Curve25519 was available. But recently,
    64 Robert Ransom implemented in his celator library [14] a highly
    65 efficient double scalar multiplication which is suitable for our
    66 handshake protocol Ace”, wrote Esfandiar.
    67 
    68 From the comparative benchmarks that Shivanker Goel implemented and
    69 ran, using Ace could improve speed and CPU load compared to the
    70 current ntor implementation. Esfandiar Mohammadi’s email on tor-talk
    71 contains the methodology, remarks and concrete numbers.
    72 
    73 The code for the benchmark is available online [15] along with a
    74 Tor-style proposal [16] for improving circuit-creation key exchange
    75 using Ace.
    76 
    77   [11] http://www.infsec.cs.uni-saarland.de/~mohammadi/paper/owake.pdf
    78   [12] https://lists.torproject.org/pipermail/tor-dev/2012-August/003901.html
    79   [13] https://lists.torproject.org/pipermail/tor-dev/2013-July/005163.html
    80   [14] http://www.infsec.cs.uni-saarland.de/~mohammadi/ace/celator.tar.gz
    81   [15] http://www.infsec.cs.uni-saarland.de/~mohammadi/ace/ace-benchmarks.tar.gz
    82   [16] http://www.infsec.cs.uni-saarland.de/~mohammadi/ace/ace-handshake.txt
    83 
    84 New Globe web application to explore the Tor network
    85 ----------------------------------------------------
    86 
    87 Christian made his Globe web application available at [17]. Globe is
    88 quite similar to Atlas [18], and in fact uses the same data, but it
    89 also allows searching for bridges and is slightly more user-friendly.
    90 
    91 Globe now uses dygraphs as a graphing engine which makes it even easier
    92 to select time intervals for its graphs.  Feel free to try out Globe
    93 and give feedback on its bug tracker [19].
    94 
    95   [17] http://globe.rndm.de/
    96   [18] https://atlas.torproject.org
    97   [19] https://github.com/makepanic/globe
    98 
    99 Tor at OHM2013 - Netherlands
    100 ----------------------------
    101 
    102 Several members of the Tor community will be at OHM2013: Observe, Hack,
    103 Make: “A five day outdoor international camping festival for hackers,
    104 makers, and those with an inquisitive mind”, according to their
    105 website [20]. The event starts tomorrow with a few Tor-related meetings
    106 and activities.
    107 
    108 Tom Lowenthal will be holding a social event at the Noisy Square village
    109 for Tor contributors and relay operators on August, 1st at 14:00. [21]
    110 
    111 Later that day, Tom will also go through “the development work,
    112 advocacy help, coordination, system administration, outreach, community
    113 support, and other things that you can do to help the Tor Project grow
    114 and improve” in the Lovelace Tent at 22:00. [22]
    115 
    116 Fabio Pietrosanti invited anyone interested to attend the Tor2Web
    117 meeting [23] to: “outlook what we’ve done, how the network growth up
    118 discussing which could be the next major milestones to be reached in
    119 terms of software, network development, community involvement and fundraising.”
    120 
    121 Last but not least, Moritz Bartl from torservers.net will be around with
    122 Tor stickers and posters, as well as collecting donations to create new
    123 exit nodes. Look around the Noisy Square! [24]
    124 
    125   [20] https://ohm2013.org/
    126   [21] https://program.ohm2013.org/event/307.html
    127   [22] https://program.ohm2013.org/event/305.html
    128   [23] https://program.ohm2013.org/event/256.html
    129   [24] https://noisysquare.com/
    130 
    131 Miscellaneous development news
    132 ------------------------------
    133 
    134 GSoC students sent out a new round of status reports. Johannes Fürmann had
    135 made great progress on the framework for EvilGenius — a way to simulate
    136 censorship events: “The Genius is there, all we have to do now is make
    137 it more evil.” [25]
    138 
    139 Cristian-Matei Toader is moving forward on limiting the set of allowed
    140 system calls by the tor daemon [26].
    141 
    142 ra_ sucessfully now has a “rttprober” script to measure the RTT of Tor
    143 circuits [27].
    144 
    145 Kostas Jakeliunas has a clean code base for the Tor Metrics Archive
    146 project that can import archival data and be queried with an
    147 Onionoo-like interface [28].
    148 
    149 Hareesan did a quick report on the steganography browser extension [29].
    150 
    151 Chang Lan Status has returned to report some progress on the HTTP
    152 pluggable transport [30].
    153 
    154 Karsten Loesing added a new “fields” parameter to Onionoo. It can be used
    155 to restrict the response size when only a specific set of attributes are
    156 needed. [31] This feature is used by the bubble graphs showing diversity
    157 of the Tor network wrote by Lunar. The latter are now available on the
    158 metrics website, thanks to Karsten. [32]
    159 
    160 Kevin P Dyer released Format-Transforming Encryption Pluggable Transport
    161 version v0.1.2-alpha [33]. Source code, documentation and builds are
    162 available on the FTE website. [34]
    163 
    164 Damian Johnson has released two new monitoring scripts [35] based on the
    165 remote descriptor fetching support recently added to Stem [36]: one to
    166 check for malformed content in the descriptors, the other to monitor
    167 sudden influxes of new relays (potential Sybil attacks).
    168 
    169   [25] https://lists.torproject.org/pipermail/tor-dev/2013-July/005179.html
    170   [26] https://lists.torproject.org/pipermail/tor-dev/2013-July/005180.html
    171   [27] https://lists.torproject.org/pipermail/tor-dev/2013-July/005181.html
    172   [28] https://lists.torproject.org/pipermail/tor-dev/2013-July/005197.html
    173   [29] https://lists.torproject.org/pipermail/tor-dev/2013-July/005185.html
    174   [30] https://lists.torproject.org/pipermail/tor-dev/2013-July/005193.html
    175   [31] https://gitweb.torproject.org/onionoo.git/commit/1c1dfa48
    176   [32] https://metrics.torproject.org/bubbles.html
    177   [33] https://lists.torproject.org/pipermail/tor-dev/2013-July/005194.html
    178   [34] https://kpdyer.com/fte/
    179   [35] https://lists.torproject.org/pipermail/tor-dev/2013-July/005209.html
    180   [36] https://stem.torproject.org/
    181 
    182 Upcoming events
    183 ---------------
    184 
    185 Jul 31-05 | Tor at OHM
    186           | Geestmerambacht, Netherlands
    187           | https://ohm2013.org/
    188           |
    189 Aug 1-4   | Runa Sandvik @ DEF-CON 21
    190           | Rio Hotel, Las Vegas, USA
    191           | https://www.defcon.org/html/defcon-21/dc-21-index.html
    192           |
    193 Aug 13    | Roger at the 3rd USENIX Workshop on Free and Open
    194           | Communications on the Internet
    195           | Washington, DC, USA
    196           | https://www.usenix.org/conference/foci13/
    197 
    198 This issue of Tor Weekly News has been assembled by Lunar, dope457,
    199 malaparte, harmony, and Karsten Loesing.
    200 
    201 Want to continue reading TWN? Please help us create this newsletter.
    202 We still need more volunteers to watch the Tor community and report
    203 important news. Please see the project page [37], write down your
    204 name and subscribe to the team mailing-list [38] if you want to
    205 get involved!
    206 
    207   [37] https://trac.torproject.org/projects/tor/wiki/TorWeeklyNews
    208   [38] https://lists.torproject.org/cgi-bin/mailman/listinfo/news-team
    209 }}}
     5'''Status:''' ''[https://lists.torproject.org/pipermail/tor-news/2013-July/000005.html Sent!]''