The certificate to be used for signing.
property SigningCertificate: TsbxCertificate read get_SigningCertificate write set_SigningCertificate;
Use this property to specify the certificate that shall be used for signing the data. Note that this certificate should have a private key associated with it. Use SigningChain to supply the rest of the certificate chain for inclusion into the signature.
This property is not available at design time.