symmetro

Encrypt and decrypt text with AES-256-GCM on a easy to deploy webpage Available on github pages and statically build releases

Security & Verification

This is critical security software. To ensure the integrity of the built files, we use GitHub Attestations which provide cryptographic proof of provenance.

Verifying Build Integrity

To verify that a downloaded index.html file was built from the official source code:

# Install GitHub CLI if you haven't already
# Then verify the file:
gh attestation verify index.html -R colthreepv/symmetro

This will show you:

• ✅ Exact commit SHA used to build the file
• ✅ When it was built and by which workflow
• ✅ Cryptographic proof it hasn't been tampered with

Always verify files before using them for sensitive operations!

Usage

• have node 20.x or higher installed
• install pnpm (corepack use pnpm@latest)
• pnpm install
• pnpm start (for dev mode)
• pnpm build (for production build)

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