kcer_nss directory contains KcerNss - an implementation of Kcer (see //components/kcer) that relies on NSS to store keys and client certificates.

KcerNss is a temporary implementation for the transition period. The plan is:

• Implement KcerNss.
• Refactor existing code that uses NSS to use KcerNss.
• Implement Kcer (that has the same interface as KcerNss, but doesn't rely on NSS).
• Switch to using Kcer without NSS.
• Remove NSS and KcerNss.