Trust Directory
Independent public mirror of national PKI trust anchors, not an authority. Certificates are published by each national PKI (e.g., BCCR for Costa Rica); this site mirrors and structures them.
Intermediate CAValid (586 days left)

Certum QCA2 2017

Poland · Published by Minister właściwy do spraw informatyzacji — Polish eIDAS supervisory body; national Trusted List operated by Narodowe Centrum Certyfikacji (NCCert), run by Narodowy Bank Polski (NBP)

Download .pemBack to Poland

The issuer "Narodowe Centrum Certyfikacji" is not present in this mirror, so the chain below starts at this certificate.

Certificate chain

Trust path from the root down to this certificate.

  1. Certum QCA2 2017Intermediate CA

Certificate fields

Subject (CN)
Certum QCA2 2017
Issuer (CN)
Narodowe Centrum Certyfikacji
Role
Intermediate CA
Key algorithm
RSA-4096
Validity
Valid (586 days left)
Valid from
Valid to
Serial number
4d439593fde6eeca69572cba7cb116286c811a96
SHA-256
fcf4f525bf92bcf4ab4ddaa66f8f5d70a1dcb4d95b33c18cda2be4c8ef3e9538
Decentralized ID (did:pki)
did:pki:pl:asseco-data-systems:certum-qca2-2017Resolve →

This CA is addressable as a did:pki decentralized identifier, derived from its subject and resolvable to a W3C DID Document.

File
certum-qca2-2017.pem

Provenance

This certificate is public data published by Minister właściwy do spraw informatyzacji — Polish eIDAS supervisory body; national Trusted List operated by Narodowe Centrum Certyfikacji (NCCert), run by Narodowy Bank Polski (NBP). This site mirrors and structures it; it is not the issuing authority. The SHA-256 fingerprint above is provided as tamper evidence: recompute it against the downloaded .pem to confirm integrity.

Mirror snapshot generated Jul 23, 2026, 06:23 p.m. UTC.