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LayerFault/
media-png-metadata-lsb-split

Name: media-png-metadata-lsb-split
Availability: InStock

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media-png-metadata-lsb-split

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-MHID-0007

Purpose

Marker is split between PNG metadata and pixel LSBs.

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: critical
Difficulty: compound
Expected admission decision: BLOCK
Control type: compound
Attack surface: media-hidden-channel, media-metadata
Techniques: cross-channel-fragmentation
Transformations: fragmentation, cross-field-correlation

Ground-truth oracle IDs

LF-ORACLE-MEDIA-CROSS-CHANNEL-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-metadata-lsb-split