The application provides a content-based
information security auditing method, comprising: analyzing the split forwarding frequency of AI-generated image-text content in the propagation path of a
social platform when the remaining
payload space is insufficient, counting the stripping frequency of each
modal identifier
payload when the image-text is independently intercepted and forwarded, and determining the available space of the
traceability field corresponding to the split forwarding frequency through the stripping frequency; for the
payload occupation of the mutual
reference field and the
traceability field after the payload occupation redistribution scheme is adjusted, the binding relationship between the
image identifier and the text identifier is fused, the
byte loss ratio of the associated content
fingerprint after being truncated when the AI-generated image-text content is split and propagated is evaluated, and the payload occupation ratio of the mutual
reference field and the
traceability field is determined.