0. Prepare cert.pfx and its password, verify_sign_acp.cer 1. Get Private Key $ openssl pkcs12 -in cert.pfx -nocerts -nodes | openssl rsa -out private_key.pem 2. Public key is verify_sign_acp.cer 3. Get Cert ID $ openssl pkcs12 -in cert.pfx -clcerts -nokeys | openssl x509 -serial -noout // result hex eg: XXXXXXXXXX
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