Supported Algorithm in Adobe Standard X (10.1.4)

[Guest]

We are getting an unsupported algorithm errors on our root CA Certificate.  Our root signature algorithm is sha256ECDSA and signature hash algorithm is sha256.  This there patches available to support ECDSA?

[AadeshSingh]

Hi baubuchon,

Please update Acrobat X to 10.1.16  Update, patch | Adobe Acrobat, Reader 10.x | Windows, Mac OS version & then try to replicate the issue.

If the issue persist, please let us know the exact error message.

Regards,
Aadesh

[Guest]

Thanks for the response.  Upgrading to 10.1.16 did not resolve the issue.  I am an adobe novice, so please let me know if you would like specific information or screen shot.  Below is what I discovered during troubleshooting.

• When opening a signed document, we get the below ribbon on the top of the page.

• Selected the Signature Panel and expanding, we see this.

• Drilling down into trusted identities, if we click on our root CA certificate, we get the below error.

• Certificate details information below.