reports.
It's thought the documents will contain the holograph and security stamp technology the company incorporated in British passports.
De La Rue lost the contract to Franco-Dutch firm Gemalto two years ago.
The certificates may use photos that have biometric data, such as the distance between facial features, to ensure the identity of the document holder.
It's claimed Cabinet Office officials have approached a number of companies to find out whether the documents could work.
The hopeful news comes just five days after it was reported those who have had the vaccine may get special mobile phone QR codes to allow them access to major sporting events.
Government insiders say those who have been inoculated could be issued with some kind of digital proof showing they are immune from the virus.
That could allow them to attend football matches and cultural events currently out of bounds to large crowds.
However, it is reported Whitehall sources insist the controversial idea is still only at the discussion phase.
One minister highlighted the fact that a vaccination requirement for those wanting to attend the Tokyo Olympics had already been suggested.
"I think there are lots of people who think it is a logical extension and lots of people are interested in it," the minister added.
"One way of opening up society would be those people who have had vaccinations carrying some kind of QR code or some sort of immunity certification which shows that they have been tested."
The plan has been drawn up by officials at the Department of Digital, Culture, Media and Sport but has yet to be greenlighted by the government.
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