@funeste38/nezlephant

nezlephant is the OC8 image payload helper from the Funesterie ecosystem.

It lets you hide small binary payloads inside PNG pixels, decode them back, and optionally scramble image blocks with a stable key-based permutation for visual obfuscation.

Install

npm install @funeste38/nezlephant

Core API

• encodeToOC8Png(payload, width?, height?)
• decodeFromOC8Png(pngBuf)
• scramblePngBlocks(pngBuf, key, blockSize?)
• unscramblePngBlocks(pngBuf, key, blockSize?)
• crc8(buf)

Example

const {
  encodeToOC8Png,
  decodeFromOC8Png,
  scramblePngBlocks,
  unscramblePngBlocks
} = require('@funeste38/nezlephant');

const payload = Buffer.from('secret-data');
const png = encodeToOC8Png(payload, 16, 16);
const scrambled = scramblePngBlocks(png, 'ma-cle-secrete', 4);
const restored = unscramblePngBlocks(scrambled, 'ma-cle-secrete', 4);
const decoded = decodeFromOC8Png(restored);

console.log(decoded.toString('utf8'));

Security Notes

• OC8 is obfuscation, not encryption
• Rubik scrambling is a deterministic permutation, not a cryptographic scheme
• for real confidentiality, encrypt first and encode second

Development

npm install
npm test