ggp1/internal/skills/catalog/sha256sum
internal/skills/catalog/sha256sum/SKILL.md
# sha256sum / sha512sum — Checksum Verification ## Category File Integrity & Verification ## License GPLv3+ (GNU coreutils) ## Source https://github.com/coreutils/coreutils (included in all Linux distributions) ## Purpose Generate and verify SHA-256/SHA-512 cryptographic checksums. ## Use Cases - Verify binary integrity against known-good checksums - Detect tampered files - Record baselines for known-good binaries - Validate downloaded artifacts ## Examples ```bash # Generate SHA-256 check
development
Updated Apr 21, 2026
$ install --global
skillsauthnpx skillsauth add ggp1/mitiga internal/skills/catalog/sha256sumInstall 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: Apr 21, 2026, 7:12 PM189.8s1 file scanned
SKILL.md
sha256sum / sha512sum — Checksum Verification
Category
File Integrity & Verification
License
GPLv3+ (GNU coreutils)
Source
https://github.com/coreutils/coreutils (included in all Linux distributions)
Purpose
Generate and verify SHA-256/SHA-512 cryptographic checksums.
Use Cases
- Verify binary integrity against known-good checksums
- Detect tampered files
- Record baselines for known-good binaries
- Validate downloaded artifacts
Examples
# Generate SHA-256 checksum
sha256sum /usr/local/bin/mitiga
# Verify checksums from a file
sha256sum -c checksums.sha256
# Generate SHA-512 checksum
sha512sum /usr/local/bin/mitiga
# Generate checksums for multiple files
sha256sum /etc/ssh/sshd_config /etc/passwd /etc/shadow
Safety Notes
- Read-only operation — safe to run at any time.
- Always record checksums of known-good binaries during initial setup.
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