Creates an X.509v3 certificate from the specified PKCS7 signed file.
filename The path of the PKCS7 signed file from which to create the X.509 certificate.
The newly created X.509 certificate.
ASN.1 DER is the only certificate format supported by this class.
The certificate file is not restricted to .cer files. Any PKCS7 signed file can be used, including an Authenticode signed .pfx file.