PostSignum — CA Compliance Record

Identity

Documentation

Policy Docs: The policies are listed in the public web repository in both Czech and English language and are regularly updated. The repository also has an archive of previous versions.
Doc Repository

Problem Reporting

CCADB-published contact mechanisms for certificate problem reports and CA incident reports.

PostSignum

Email to manager[dot]postsignum[at]cpost[dot]cz

Mozilla CA Program — Known Bugzilla Cases (6)

#2021239 RESOLVED Certificate Problem Report Opened 2026-03-05 · Closed 2026-04-17

PostSignum: Length Subject organizationName

AI Summary

#2016722 RESOLVED Certificate Misissuance Opened 2026-02-13 · Closed 2026-03-17

PostSignum: Mis-issued certificate

AI Summary

#1897730 ASSIGNED Self Incident Disclosure Opened 2024-05-20 Still Open

PostSignum CCADB Self-Assessment 2024

AI Summary

#1602415 ASSIGNED Root Inclusion Request Opened 2019-12-09 Still Open

Add PostSignum Root QCA 4 and PostSignum Root QCA ECC R1

AI Summary

#1322287 RESOLVED Audit Related Opened 2016-12-06 · Closed 2022-12-08

Audit infor for PostSignum

AI Summary

#643398 RESOLVED Root Inclusion Request Opened 2011-03-21 · Closed 2022-11-14

Add PostSignum root certificate

AI Summary

Certificates (7)

Certificate	Type	Source agreement	Capabilities	Valid Until	crt.sh	Actions
PostSignum Root QCA 2 Expired	Root		—	2025-01-19		›
PostSignum Root QCA 4	Root	✓	TLSS/MIME	2038-07-26	crt.sh	›
PostSignum Public CA 4	Issuing	i	TLSS/MIME	2033-09-27	crt.sh	›
PostSignum Qualified CA 4	Issuing	i	TLSS/MIME	2033-09-27	crt.sh	›
PostSignum Root QCA ECC R1	Root		—	2038-06-29		›
PostSignum Public ECC R1 CA1	Issuing		—	2034-01-30		›
PostSignum Qualified ECC R1 CA1	Issuing		—	2034-01-30		›