Fout aangetroffen tijdens ondertekenen: Niet-ondersteund algoritme.

[Irfan_Akif]

Hello Adobe team,

Since the introduction of the new Belgian eID cards (which use the ECDSA algorithm instead of RSA), it has become impossible to sign PDF documents in Adobe Acrobat Reader DC for macOS.

The signature certificates on the card are correctly recognized (5 green check marks), and the PIN is accepted, but at the end of the signing process Acrobat shows this error:
"Fout aangetroffen tijdens ondertekenen: Niet-ondersteund algoritme."

This issue only occurs on macOS.
The same eID card works perfectly on Windows and in the official Belgian eID Signature Portal.

According to BOSA (Federal Public Service for Digital Transformation, Belgium), they are in contact with Adobe regarding this missing functionality, as Acrobat for macOS does not yet support ECDSA (Elliptic Curve Digital Signature Algorithm).

Could you please confirm:

-Whether ECDSA support for Belgian eID will be implemented in an upcoming macOS release, and

-If there is a timeline for this update?

Thank you very much for your attention and for keeping Acrobat compatible with national eID systems.

Kind regards,

[S. S]

Hi @Irfan_Akif,

Hope you are doing well. Thanks for writing in!

I have shared the details with the development team for review.

Please allow me some time to get this checked and get back to you with a concrete response. 

Regards,
Souvik.