Thailand National Root Certification Authority - G1

Check whether your device trusts it

Each platform keeps its own root store. The commands below look up Thailand National Root Certification Authority - G1 by common name (Thailand National Root Certification Authority - G1) or fingerprint. The store status in each heading comes from the CCADB snapshot; your device can differ if it is out of date or managed by an administrator.

macOS (Apple store: Not included)

Search the system roots keychain by common name. -Z prints the SHA-256 hash, which must match the fingerprint on the last line.

security find-certificate -a -c "Thailand National Root Certification Authority - G1" -Z \
  /System/Library/Keychains/SystemRootCertificates.keychain | grep "SHA-256"
# SHA-256 hash: 2A8DA2F8D23E0CD3B5871ECFB0F42276CA73230667F474EEDE71C5EE32CC3EC6

Windows (Microsoft store: Included · Trusted for TLS)

Windows identifies roots by SHA-1 thumbprint. It installs third-party roots on demand through Automatic Root Certificates Update, so "not found" can also mean the root has not been needed yet; certutil -generateSSTFromWU roots.sst downloads Microsoft's full list.

certutil -verifystore Root 66F2DCFB3F814DDEE9B3206F11DEFE1BFBDFE132

Linux (ca-certificates follows Mozilla: Not included)

Debian, Ubuntu, Fedora and RHEL build their ca-certificates package from Mozilla's root store. Use trust list on p11-kit systems, or search the PEM bundle on Debian and Ubuntu.

# Fedora / RHEL / Arch (p11-kit)
trust list --filter=ca-anchors | grep -iF -A2 "Thailand National Root Certification Authority - G1"
# Debian / Ubuntu (ca-certificates)
openssl crl2pkcs7 -nocrl -certfile /etc/ssl/certs/ca-certificates.crt \
  | openssl pkcs7 -print_certs -noout | grep -iF "Thailand National Root Certification Authority - G1"

Java

Java ships its own cacerts keystore; JDK 9 and later accept -cacerts and the default store password is changeit. Search for the SHA-256 fingerprint in colon form.

keytool -list -cacerts -storepass changeit | grep -i "2A:8D:A2:F8:D2:3E:0C:D3:B5:87:1E:CF:B0:F4:22:76:CA:73:23:06:67:F4:74:EE:DE:71:C5:EE:32:CC:3E:C6"

Android

Android's system store is maintained by Google separately from the four CCADB stores above. Open Settings → Security & privacy → More security settings → Encryption & credentials → Trusted credentials → System (menu names vary by vendor and version) and look for Electronic Transactions Development Agency (Public Organization) → Thailand National Root Certification Authority - G1.

Which root does my site chain to?

List the chain your server sends and compare the last issuer with this root; the fingerprint check confirms a local copy.

Download PEM

# show subject (s:) and issuer (i:) of every certificate the server sends
openssl s_client -connect example.com:443 -servername example.com -showcerts </dev/null 2>/dev/null \
  | grep -E '^ *[0-9]+ s:|^ *i:'
# subject and SHA-256 fingerprint of the downloaded PEM file
openssl x509 -in thailand-nrca-thailand-national-root-ca-g1.pem -noout -subject -fingerprint -sha256
# sha256 Fingerprint=2A:8D:A2:F8:D2:3E:0C:D3:B5:87:1E:CF:B0:F4:22:76:CA:73:23:06:67:F4:74:EE:DE:71:C5:EE:32:CC:3E:C6