PKCS11_MODULE path to a file

Question

I am working on a test program using the Nitrokey HSM:

import pkcs11

lib = pkcs11.lib(os.environ['PKCS11_MODULE'])
token = lib.get_token(token_label='smartcard')
    with token.open() as session:

print(session)

Question: what can be the pkcs11 library file name? I guessed opensc-hsm.so, and defined PKCS11_MODULE to that path, but was not successful. So, what can be the name of a pkcs11 library to be loaded? Thanks

Answer 1

At least the Nitrokey Pro can be used with opensc-pkcs11.so.

Answer 2

According to this pkcs11 page on Nitrokey HSM, the standard OpenSC module can be used:

The OpenSC PKCS #11 module is opensc-pkcs11.so.

Alternative is to use the HSM smart card vendor's module libsc-hsm-pkcs11.so:

• Code: https://github.com/CardContact/sc-hsm-embedded
• Documentation: https://github.com/CardContact/sc-hsm-embedded/wiki/PKCS11

For more information please look at these:

• https://github.com/OpenSC/OpenSC/wiki/SmartCardHSM
• https://www.smartcard-hsm.com/opensource.html
• https://www.smartcard-hsm.com/support.html