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Yubikey and OpenSC "No PKCS11 names detected"

I'm trying to setup a yubikey smart card and have installed the OpenSC drivers. I'm trying to follow this post: ... s-pkcs-11/

But it seems to be for the Mac. I have put "C:\Windows\System32\opensc-pkcs11.dll" in the Providers field (it exists) but when I click on the Detect button, I receive "No PKCS11 names detected"

It works in FireFox.

Hi dprothero,

If you are running on a 64-bit operating system, please ensure you install the 32-bit OpenSC package and point to C:\Windows\SysWOW64\opensc-pkcs11.dll.

To ensure opensc is loading correctly, setup your connection so "Prompt for a certificate name" is selected, and add 'verb 7' without quotes on a new line in the Advanced tab. You should see "PKCS#11: Provider 'C:\Windows\SysWOW64\opensc-pkcs11.dll' added rv=0-'CKR_OK'" in the log.

Thanks for that! Downloading the 32-bit version of OpenSC and using the DLL from C\WINDOWS\SYSWOW64 worked for me.

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