公开(公告)号：JP2001320360A

公开(公告)日：2001-11-16

申请号：JP2001071425

申请日：2001-03-14

Applicant: IBM

Inventor： KIENZLE MARTIN ,  ROSE RAY E ,  VERSCHEURE OLIVIER

IPC: G06F12/14 ,  G06F21/24 ,  G09C5/00 ,  G10K15/02 ,  G10L19/00 ,  H04L9/08 ,  H04L9/12 ,  H04L9/18 ,  H04L29/06 ,  H04N7/167

Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for protecting a digital multimedia stream from unauthorized editing. SOLUTION: The system for reinforcing continuity of a data stream includes a server connected to a transmission link for supplying the data stream to at least one client by the transmission link. The data stream is segmented into plural units. The server includes a scrambler for ciphering at least one first unit, by using a ciphering key and an information concealing unit for deciding the ciphering key and embedding the ciphering key in at least one second unit for data stream, that the client requires information for concealing information, in order to cipher and decode the data stream.

公开(公告)号：AU781797B2

公开(公告)日：2005-06-16

申请号：AU7197200

申请日：2000-12-01

Applicant: IBM

Inventor： KIENZLE MARTIN ,  ROSE RAY E ,  VERSCHEURE OLIVIER

IPC: G06F12/14 ,  G06F21/24 ,  G09C5/00 ,  G10K15/02 ,  G10L19/00 ,  H04L9/08 ,  H04L9/12 ,  H04L9/18 ,  H04L29/06 ,  H04N7/167

Abstract: A system for enforcing data stream continuity, in accordance with the present invention, includes a server coupled to a transmission link for providing a data stream to at least one client over the transmission link. The data stream is segmented into units. The server includes a scrambler for encrypting at least one first unit using an encryption key, and a steganographic unit for embedding the encryption key into at least one second unit for the data stream such that steganographic information is needed by the client to determine the encryption key and decipher the data stream.

公开(公告)号：AU7197200A

公开(公告)日：2001-09-20

申请号：AU7197200

申请日：2000-12-01

Applicant: IBM

Inventor： KIENZLE MARTIN ,  VERSCHEURE OLIVIER ,  ROSE RAY E

IPC: G06F12/14 ,  G06F21/24 ,  G09C5/00 ,  G10K15/02 ,  G10L19/00 ,  H04L9/08 ,  H04L9/12 ,  H04L9/18 ,  H04L29/06 ,  H04N7/167

Abstract: A system for enforcing data stream continuity, in accordance with the present invention, includes a server coupled to a transmission link for providing a data stream to at least one client over the transmission link. The data stream is segmented into units. The server includes a scrambler for encrypting at least one first unit using an encryption key, and a steganographic unit for embedding the encryption key into at least one second unit for the data stream such that steganographic information is needed by the client to determine the encryption key and decipher the data stream.