reemuru
/ preimage.js
Created
August 27, 2021 00:47
Node.js - create preimage and preimage hash for LND hold invoice
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| // import crypto module | |
| const crypto = require("crypto") | |
| // use cryptographically secure random bytes generation | |
| const preimage = crypto.randomBytes(32) | |
| // get the raw bytes from the buffer | |
| const preimageRaw = JSON.parse(JSON.stringify(preimage)).data | |
| // log the preimage raw bytes | |
| console.log(`preimage bytes: ${preimageRaw}`) | |
| // create SHA-256 hash | |
| const hash = crypto.createHash('sha256') |