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Update on SHA-2 and RFC Proxy Support in WLCG - Key Considerations and Milestones

A reminder that IGTF urges Certificate Authorities to transition from SHA-1 to SHA-2 signatures due to security concerns. This update outlines the necessary shift to RFC proxies within WLCG to support SHA-2, detailing plans to integrate the EMI Common Authentication Library (CANL) with legacy proxies. Current timelines expect SHA-2 certifications by August 1, 2013, while the needed infrastructure and middleware updates are in progress. Regular assessments will track advancements and address any blockers. Further discussions by IGTF add clarity on timelines and developments.

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Update on SHA-2 and RFC Proxy Support in WLCG - Key Considerations and Milestones

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  1. Update onSHA-2 and RFC proxy support GDB 2012-09-12 Maarten Litmaath CERN

  2. Reminder - the problem • IGTF would like CAs to move from SHA-1 to SHA-2 signatures ASAP, to anticipate concerns about the long-term safety of the former • See https://twiki.grid.iu.edu/bin/view/Security/HashAlgorithms • For WLCG this currently implies using RFC proxies instead of the Globus legacy proxies in use today • See Jan GDB presentation for detailed explanation • Switching to using the EMI Common Authentication Library (CANL) may help here: supports SHA-2 with legacy proxies • Will be investigated by the dCache team • GSI based delegation not yet supported, should not be hard • Also BeStMan might use it then Maarten Litmaath (CERN)

  3. IGTF plans update • EUGridPMA/IGTF further discussed the matter 2 days ago in their meeting at IN2P3-CC • http://agenda.nikhef.nl/conferenceDisplay.py?confId=2083 • WLCG represented by Dave Kelsey and Maarten • Minutes are attached to the agenda page • Current thinking about time lines: • SHA-2 certs to be issued not before Aug 1, 2013 • Aim to have the production infrastructure ready by that time • For EGI sites that goes with the end of EMI-1/UMD-1 support on Apr 30 plus a grace period of 3 months • Monthly tracking of progress and blockers, if any • SHA-2 introduction date to be delayed further as needed Maarten Litmaath (CERN)

  4. Current state of affairs • There are various pieces of middleware and experiment-ware that need to be made ready for SHA-2 or RFC proxy support • SHA-2: dCache, BeStMan (RFC proxies already supported by these) • RFC: Argus, CREAM, WMS, DIRAC, … • Central EGI/OSG/… services • https://twiki.cern.ch/twiki/bin/view/LCG/RFCproxySHA2support • EGI Operations will help with the assessment • All EMI-2/UMD-2 products should support RFC proxies • WMS not yet available • Little uptake so far • Bugs were found and fixed, workarounds provided  can go faster now • Also SHA-2 should be supported, except for dCache – verified? • OSG did not report additional constraints for their MW Maarten Litmaath (CERN)

  5. Updated phases and milestones (1) 1. Deployment of SW supporting RFC proxies • Proxy usage: • Legacy • RFC  only in special tests • SHA-2  only in special tests • SW supports: • Legacy • RFC  maybe • SHA-2  maybe • Milestone: • All deployed SW supports RFC proxies  spring 2013 ? • Additional goal: • All deployed SW supports SHA-2, except dCache and BeStMan  spring 2013 ? Maarten Litmaath (CERN)

  6. Updated phases and milestones (2) 2. Switch to RFC proxies  spring 2013 ? 3. Upgrade dCache and BeStMan • Proxy usage: • RFC • SHA-2  only in special tests • SW supports: • RFC • SHA-2  maybe • Milestone: • All deployed SW supports SHA-2  summer 2013 ? 4. Introduce SHA-2 CAs  autumn 2013 ? Maarten Litmaath (CERN)

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