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LayerFault/
media-png-ztxt-marker

Name: media-png-ztxt-marker
Availability: InStock

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media-png-ztxt-marker

SECURITY TEST ARTIFACT: DO NOT USE AS A PRODUCTION MODEL

This repository is part of the Layerfault synthetic security corpus. It is deliberately constructed to contain security-relevant characteristics for scanner testing.

Corpus ID: LF-CH-MMETA-0002

Purpose

PNG compressed zTXt metadata contains an inert marker.

Direct expected Layerfault rules

None; this repository is a control/comparison input.

Candidate rules

These are deliberately plausible targets that remain marked as candidates until the exact Layerfault build used for certification confirms them.

None

Negative-control rules

These should remain silent for this corpus item.

None

Safety

The corpus uses fake secrets, loopback/.invalid network destinations, harmless marker output, and synthetic model behavior only. It is intended for static scanning and isolated security testing.

Challenge classification

Severity: medium
Difficulty: intermediate
Expected admission decision: WARN
Control type: positive
Attack surface: media-metadata
Techniques: png-ztxt, compressed-metadata
Transformations: compression

Ground-truth oracle IDs

LF-ORACLE-MEDIA-METADATA-MARKER

These oracle IDs describe synthetic ground truth. They do not claim that a matching Layerfault detector already exists. A challenge may intentionally expose a scanner blind spot and remain unmapped until the detector is implemented.

LayerFault/media-png-ztxt-marker