Concept for trustworthiness check of video data streams
OwnerJonathan PFAFF, Tobias HINZ +4inventors
InventorsJonathan PFAFF, Tobias HINZ, Karsten SUEHRING, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
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Abstract
A method for checking a video data stream having a video encoded thereinto on trustworthiness comprises: subjecting a predetermined portion of the video data stream, or data derived therefrom, to a hash function to obtain a hash value; deriving a digital signature from the video data stream; and checking whether the hash value fits to the digital signature to determine whether the video data stream is trustworthy.
Claims24
Apparatus for checking a video data stream having a video encoded thereinto on trustworthiness, wherein the apparatus is configured for
- subjecting a predetermined portion of the video data stream, or data derived therefrom, to a hash function to acquire a hash value;
- deriving a digital signature from the video data stream;
- and
- checking whether the hash value fits to the digital signature to determine whether the video data stream is trustworthy.
Apparatus for rendering a video data stream having a video encoded thereinto checkable on trustworthiness, wherein the apparatus is configured for
- subjecting a predetermined portion of the video data stream, or data derived therefrom, to a hash function to acquire a hash value;
- computing a digital signature based on the hash value so as to digitally sign the hash value, and
- inserting the digital signature into the video data stream, thereby allowing determining whether the video data stream is trustworthy by checking whether the hash value fits to the digital signature.
Method for checking a video data stream having a video encoded thereinto on trustworthiness, wherein the method comprises:
- subjecting a predetermined portion of the video data stream, or data derived therefrom, to a hash function to acquire a hash value;
- deriving a digital signature from the video data stream;
- and
- checking whether the hash value fits to the digital signature to determine whether the video data stream is trustworthy.
A non-transitory digital storage medium having stored thereon a video data stream, the video data stream being generated by a method for rendering a video data stream having a video encoded thereinto checkable on trustworthiness, wherein the method comprises:
- subjecting a predetermined portion of the video data stream, or data derived therefrom, to a hash function to acquire a hash value;
- computing a digital signature based on the hash value so as to digitally sign the hash value, and
- inserting the digital signature into the video data stream, thereby allowing determining whether the video data stream is trustworthy by checking whether the hash value fits to the digital signature.
Dependencies are inferred from the claim text.