Signs the output file. Adds certificates specified by the switch's values to the list of certificates the file will be signed with. The and values identiify certificates private keys of which will be used to sign the data. The certificates are sought for in My store.
Values:
filename - path of the file containg a certificate used for signing. The certificate must also be installed in My store.
fingerprint - fingerprint of a certificate installed in My store that will be used for signing.
This switch must have at least one value, when present.