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GiorgosP
Participant
Apr 6, 2021 9:04 AM UTC
Question

Digital Signature

Hi 

 

I am trying to digitally sign pdf files with a USB token but I am getting the following message:

 

Error encountered whie signing:

PKCS#11 Error

Error Code: 0x91

 

I am using Acrobat Reader DC (latest Version: 2021.001.20145) on OSX BigSur

 

Has anyone faced such a problem?

 

Thanks

G.

4 replies

Amal.
Amal.
Legend
Apr 7, 2021 5:16 AM UTC

Hi GiorgosP

 

Hope you are doing well and sorry for the trouble. As described you are unable to digitally sign pdf files with a USB token.

 

Please check out the correct answer marked in a similar discussion: https://community.adobe.com/t5/acrobat/acrobat-reader-dc-does-not-recognize-my-smart-card-reader/m-p/10067589 and see if that works for you.

 

If it still doesn't work, please try to update the version of the token device or get in touch with the vendor of the device for more information.

 

Regards

Amal

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GiorgosPAuthor
Participant
Apr 14, 2021 10:07 AM UTC

Thanks Amal, 

 

Unfortunately although the Token with the certificate is visible, when I try to digitaly sign I keep taking the same error:

Error encountered whie signing:

PKCS#11 Error

Error Code: 0x91

 

Also if I try time stamp the document I also get an error:

SigValue is 178 bytes larger than expected

 

Using the token in windows everything works fine so I guess it is the Acrobat in OSX. 

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    peny25
    Participant
    Nov 3, 2024 4:22 PM UTC

    Good evening, I would like to ask if you found a solution. as I am facing the same problem.

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