PA reading problem in UK documents

Issue:

When you scan some types of UK documents (e.g. residence permits) you get PA: False in the RFID section, while other checks go fine.

Solution:

The most probable reason for such an error is that you do not have a proper CSCA certificate. Unfortunately, the UK Home Office currently does not publicly distribute these certificates. You can try to contact authorities by yourself.

Please note

Our company only uses certificates that are in the public domain and does not provide other certificates.

Additional information:

There is a document ICAO 9303, according to which identification documents are made and personalized. There are documents for travel between countries - passports. There are internal documents of specific countries, such as ID-cards and residence permits.

Electronic documents have an SOD in which computed hashes of data groups are stored, and these hashes are signed with a DS certificate, which is usually stored inside the same SOD. This DS certificate is signed with a certificate CSCA.
Some countries use a single CSCA certificate for all documents. Some countries use separate certificates for international and domestic documents.
That's why PKD (Public Key Directory) of ICAO stores only CSCA for international documents.

To learn more about ICAO procedures to ensure verification of electronic documents, please follow . this link.

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