aeondave/cyberchef
offensive-tools/cryptography/cyberchef/SKILL.md
Auth/lab ref: Web-based data transformation and crypto analysis workbench. For rapidly decoding layered encodings, transforming binary/text formats, prototyping crypto/decode pipelines, or sharing reproducible recipes.
$ install --global
skillsauthnpx skillsauth add aeondave/malskill cyberchefInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Jun 8, 2026, 3:43 AM111.0s3 files scanned
SKILL.md
- name:
- cyberchef
- description:
- Auth/lab ref: Web-based data transformation and crypto analysis workbench. For rapidly decoding layered encodings, transforming binary/text formats, prototyping crypto/decode pipelines, or sharing reproducible recipes.
- license:
- Apache-2.0
- compatibility:
- Authorized/lab use only; see body for platform and setup constraints.
- author:
- AeonDave
- version:
- 1.0
CyberChef
CyberChef is ideal for rapid transformation pipelines: decode, inspect, branch, and iterate without writing throwaway scripts first.
Core use in crypto/reversing
- Unwrap nested encodings (Base64/Hex/URL/gzip/rot/XOR).
- Test candidate keys/IVs quickly for block/stream ciphers.
- Analyze unknown blobs via
Magicbefore custom code. - Export reproducible recipes through URL hash or saved JSON.
High-value workflow
- Load input (text, hex dump, file).
- Start with
Magicand inspect suggestions. - Build explicit recipe chain (avoid blind overfitting).
- Add breakpoints and step through each operation.
- Export URL/recipe JSON for reproducibility and script handoff.
Deep-link format
CyberChef supports URL recipes:
https://gchq.github.io/CyberChef/#recipe=<Ops>&input=<Base64Input>
This is useful for teammate handoff and agent reproducibility.
Local/offline options
- Browser app is client-side by design.
- For isolated environments, run local Docker image and use local browser access.
Automation bridge
When recipe stabilizes and must be automated at scale:
- Move from web recipe to CyberChef Node API (
chef.bake) or to Python equivalents. - Keep operation order and arguments identical.
Browser interaction note
CyberChef is a web-first tool. If interactive browser steps are required and cannot be executed automatically in the current environment, request user-assisted interaction (e.g., upload input blob, verify candidate recipe output).
Resources
references/web-workflows.md— practical browser workflow, Magic usage, breakpoints, recipe sharing, and validation strategy.references/node-api-handoff.md— converting web recipes into programmatic Node API (chef,Dish,bake) for agentic automation.
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