公开(公告)号：WO2004079980A3

公开(公告)日：2004-10-21

申请号：PCT/US2004006688

申请日：2004-03-05

Applicant: XSIDES CORP ,  YOUATT DAVID P ,  SMITH JASON M

Inventor： YOUATT DAVID P ,  SMITH JASON M

IPC: H04N7/167

CPC classification number: H04N21/44055 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/23476 ,  H04N21/4405 ,  H04N21/63345 ,  H04N21/835

Abstract: An encryption technology uses an encryption map and video graphics processing technology to combine an encryption map with the image data. Video image processing using maps, such as texture maps, bump maps and the like are combined with an encryption map to generate and encrypted image data. The image is subsequently decrypted using encryption keys that are combined with the encrypted image data using video graphics processing technologies. The decryption map is combined with the encrypted signal to generate a viewable image. The encryption keys may be on a per pixel basis with a separate encryption key for each pixel. Alternatively, an encryption key may contain active keys that may be used to decrypt more than one pixel as well as decoy keys that do not decrypt the signal and thus confound unauthorized decryption attempts. Using encryption maps, single video frames or portions of video frames may be encrypted. The encryption maps may be used with scaled image data and with two dimensional or three dimensional graphics processors.

公开(公告)号：WO2004079980B1

公开(公告)日：2004-12-23

申请号：PCT/US2004006688

申请日：2004-03-05

Applicant: XSIDES CORP ,  YOUATT DAVID P ,  SMITH JASON M

Inventor： YOUATT DAVID P ,  SMITH JASON M

IPC: H04N7/167

CPC classification number: H04N21/44055 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/23476 ,  H04N21/4405 ,  H04N21/63345 ,  H04N21/835

Abstract: An encryption technology uses an encryption map and video graphics processing technology to combine an encryption map with the image data. Video image processing using maps, such as texture maps, bump maps and the like are combined with an encryption map to generate and encrypted image data. The image is subsequently decrypted using encryption keys that are combined with the encrypted image data using video graphics processing technologies. The decryption map is combined with the encrypted signal to generate a viewable image. The encryption keys may be on a per pixel basis with a separate encryption key for each pixel. Alternatively, an encryption key may contain active keys that may be used to decrypt more than one pixel as well as decoy keys that do not decrypt the signal and thus confound unauthorized decryption attempts. Using encryption maps, single video frames or portions of video frames may be encrypted. The encryption maps may be used with scaled image data and with two dimensional or three dimensional graphics processors.

Abstract translation: 加密技术使用加密映射和视频图形处理技术将加密映射与图像数据组合。 使用诸如纹理贴图，凹凸贴图等的贴图的视频图像处理与加密贴图组合以生成并加密图像数据。 随后使用加密密钥对图像进行解密，所述加密密钥使用视频图形处理技术与加密的图像数据组合。 解密图与加密信号组合以生成可视图像。 加密密钥可以基于每个像素，并且每个像素具有单独的加密密钥。 或者，加密密钥可包含可用于解密多于一个像素的活动密钥以及不解密该信号的诱饵密钥，从而混淆未授权的解密尝试。 使用加密映射，单个视频帧或部分视频帧可以被加密。 加密图可以与缩放的图像数据一起使用并且与二维或三维图形处理器一起使用。