private static SignedCms EnsureCertificatesInCertificatesCollection(
SignedCms timestamp,
IReadOnlyList <X509Certificate2> chain)
{
using (ICms timestampCms = CmsFactory.Create(timestamp.Encode()))
{
timestampCms.AddCertificates(
chain.Where(certificate => !timestamp.Certificates.Contains(certificate)));
var bytes = timestampCms.Encode();
var updatedCms = new SignedCms();
updatedCms.Decode(bytes);
return(updatedCms);
}
}
