AUTHENTICATED MEDIA COMMUNICATION SYSTEM AND APPROACH
First Claim
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1. A method for authenticating media using a projection of the media where a distributed encoding of the projection is accessible, the method comprising:
- based on the media and an editing characteristic for the media, algorithmically decoding the distributed encoding and providing a decoded projection therefrom; and
determining a condition of authenticity of the media based on the projection of the media and the decoded projection.
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Abstract
Media authentication is facilitated. In connection with an example embodiment, media is authenticated using an encoded projection of the media that is decoded using the media as an input. A condition of authenticity of the media is determined based upon an indication of distortion of the media characterized by a decoding of the encoded projection.
18 Citations
21 Claims
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1. A method for authenticating media using a projection of the media where a distributed encoding of the projection is accessible, the method comprising:
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based on the media and an editing characteristic for the media, algorithmically decoding the distributed encoding and providing a decoded projection therefrom; and determining a condition of authenticity of the media based on the projection of the media and the decoded projection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for authenticating media, the method comprising:
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generating a media digest for a projection of the media using a cryptographic hash function; generated a distributed encoding of the projection; communicating the media, the media digest and the encoded projection to a recipient; and at the recipient, decoding the encoded projection using the media as side data input and providing a decoded projection therefrom, generating a media digest for the decoded projection using a cryptographic hash function, comparing the media digest for the decoded projection with the media digest for the projection of the media, and determining a condition of authenticity of the media in response to the comparison. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for communicating and authenticating image data, the method comprising:
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determining a level of distortion of the image data in response to predefined image encoding approaches to be used in communicating the image data; for a projection of the image, determining a number of authentication bits needed to correctly decode the projection as a function of the determined level of distortion; generating a projection of the image having a size corresponding to the determined number of authentication bits; generating an image digest of the projection using a cryptographic hash function; generating an encoded version of the projection; communicating the image, the image digest and the encoded projection to a recipient; and at the recipient, decoding the encoded projection using the image as an input to form a decoded projection, generating an image digest of the decoded projection, and determining that the image is authentic in response to the image digests matching each other. - View Dependent Claims (18)
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19. A system for authenticating media using a projection of the media and an encoding of the projection where a distributed encoding of the projection is accessible, the system comprising:
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a decoding arrangement to algorithmically decode the distributed encoding of the projection based on the media and an editing characteristic for the media, and to provide a decoded projection therefrom; and an authenticating arrangement to determine a condition of authenticity of the media based on the projection of the media and the decoded projection. - View Dependent Claims (20, 21)
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Specification