OpenSSL Errors and Solutions

Invalid engine "pkcs11" No engine specified for loading private key / No filename or uri specified for loading private key

Error Message
Invalid engine "pkcs11" No engine specified for loading private key / No filename or uri specified for loading private key:

Problem

This error occurs when the libengine-pkcs11-openssl command is not Executed. This command enables OpenSSL to interact with PKCS#11 modules.

Solution

To enable support for OpenSSL to interact with PKCS#11, run the following command:
sudo apt install -y openssl libengine-pkcs11-openssl gnutls-bin xxd