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Work item:
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H.MMAuth
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Subject/title:
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Framework for authentication of multimedia content
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Status:
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Under study [Issued from previous study period]
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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2026 (Medium priority)
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Liaison:
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ITU-T SG17, ISO/IEC JTC 1/SC 29
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Supporting members:
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Fraunhofer HHI
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Summary:
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This Draft New Recommendation provides a technical solution for the verification of multimedia content's integrity, enabling users to confirm the authenticity of the content by its creators, such as governments, companies, or news organizations. The solution is based on the digital signing of data streams. The content creator (encoder) uses a private key to sign the content, while the recipient (decoder) uses a corresponding public key to verify the authenticity. The public key, necessary for verification, is not derived directly from the data stream but is obtained through a trusted, independent method, such as a third-party trust centre. The use of ITU Recommendation X.509 for the secure retrieval of digital certificates that validate the encoder's identity is specified. Additionally, the encoders and decoders cryptographic hash function to compute a unique digital signature for a specified byte range within the data stream is specified. Verification occurs when the decoder successfully matches the digital signature with the computed hash value using the public key, establishing the content's authenticity.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2024-06-10 17:01:15
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Last update:
2026-09-07 16:13:41
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