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 QCA 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 QCA 2017Intermediate CA

Certificate fields

Subject (CN)
Certum QCA 2017
Issuer (CN)
Narodowe Centrum Certyfikacji
Role
Intermediate CA
Key algorithm
RSA-4096
Validity
Valid (586 days left)
Valid from
Valid to
Serial number
7c8490c833d798a784dbfb588768233f6ebbf47f
SHA-256
ed380189eb280f5d86c914bfdd28d89795e5676ae893f3c3d75b12f3e42cc914
Decentralized ID (did:pki)
did:pki:pl:asseco-data-systems:certum-qca-2017Resolve →

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

File
certum-qca-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.