The present invention discloses a method and system for embedding a digital signature into an MPEG stream. In the preferred embodiment, the digital signature is embedded in a plurality of PCR fields of a transport stream and is encrypted and scrambled to avoid detection and removal. Other embodiments...http://www.google.es/patents/US7058815?utm_source=gb-gplus-sharePatente US7058815 - Method and system for digitally signing MPEG streams
Method and system for digitally signing MPEG streams