I've tried to troubleshoot my mac to sign PDFs with my CAC, I install CACKey, added a module in the PKCS, when I go to sign my document and put in my PIN, this error pops up: PKCS#11 0xA4 error

[melissas83893158]

I've tried for hours to fix this problem and not much comes up on google for the error I am seeing. It says my PIN is incorrect after that error comes up and I've tried my PIN for my CAC for the admin for my adobeID, same error.

[margueritek · Accepted solution]

CKR_PIN_LOCKED (0xa4). User login to the token is not possible. CAC needs to go back to the Security Officer to have the PIN reset or unlocked.