From Fedora Project Wiki

< Changes

Revision as of 16:38, 1 June 2018 by Ueno (talk | contribs) (initial draft)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

NSS load p11-kit modules by default


When NSS database is created, the PKCS#11 modules configured in the system's p11-kit will be automatically registered and visible to applications.


  • Name: Daiki Ueno
  • Email:
  • Release notes owner:

Current status

  • Targeted release: Fedora 29
  • Last updated: 2018-06-01
  • Tracker bug: <will be assigned by the Wrangler>

Detailed Description

While Fedora provides a way of configuring PKCS#11 modules on the system through p11-kit, NSS applications by default didn't benefit from it and the users had to register necessary modules with modutil manually. Making NSS also aware of the system configuration will bring them a consistent user experience regarding PKCS#11 and smartcards.

See also:

Benefit to Fedora

NSS applications can use PKCS#11 modules without special configuration procedure to NSS.


  • Proposal owners:

- Modify the crypto-policies package to enable p11-kit-proxy in the newly created NSS database. - Make sure that this change doesn't cause any regression with the existing applications.

  • Other developers: N/A (not a System Wide Change)
  • Trademark approval: N/A (not needed for this Change)

Upgrade/compatibility impact

If the user previously used a conflicting configuration, such as using p11-kit-proxy as a replacement of p11-kit-trust, it will stop working.

How To Test

  1. install a PKCS#11 module, say softhsm2
  2. create an NSS database
  3. list modules registered to the NSS database, and check that there is softhsm2

User Experience

NSS application users are no longer required to register PKCS#11 module manually.


firefox, sssd

Contingency Plan

  • Contingency mechanism: Revert the change in crypto-policies
  • Contingency deadline: Beta freeze
  • Blocks release? No
  • Blocks product? No



Release Notes

It should be sufficient to have a simple sentence mentioning this change.