Media data transmission method, apparatus, and system

A media data transmission method, wherein the method comprises:

• receiving, by a second communication party, first media data and second media data sent by a first communication party, wherein the second media data is received after the first media data, the second media data includes a first digital watermark that comprises a first signature value;
• obtaining, by the second communication party, a first authentication message comprising;
• first fingerprint information of the first media data;
• and
• verifying, by the second communication party, the first signature value based on a target key and the first authentication message, to determine authenticity of the first media data.

A media data transmission apparatus, party, for a first communication party, the media data transmission apparatus comprising:

• a processor;
• and
• a memory coupled to the processor and storing instructions, which when executed by the processor, cause the media data transmission apparatus to:
• obtain first fingerprint information of first media data;
• generate a first digital watermark based on the first fingerprint information, wherein the first digital watermark comprises a first signature value obtained, by the first communication party, by signing a first authentication message with a target key, and the first authentication message comprises the first fingerprint information;
• and
• send the first media data and second media data to a second communication party, wherein the first digital watermark is included in the second media data, and the second media data is sent after the first media data.

A non-transitory computer-readable storage medium storing instructions, which when executed by a processor, cause the processor to perform operations comprising:

• obtaining, by a first communication party, first fingerprint information of first media data;
• generating, by the first communication party, a first digital watermark based on the first fingerprint information, wherein the first digital watermark comprises a first signature value obtained, by the first communication party, by signing a first authentication message with a target key, and the first authentication message comprises the first fingerprint information;
• and
• send, by the first communication party, the first media data and second media data to a second communication party, wherein the first digital watermark is included in the second media data, and the second media data is sent after the first media data.