livecodingspace-app/public/lib/gundb/sea/sha256.js

    const shim = require('./shim');
    const Buffer = require('./buffer')
    const parse = require('./parse')
    const { pbkdf2 } = require('./settings')
    // This internal func returns SHA-256 hashed data for signing
    const sha256hash = async (mm) => {
      const m = parse(mm)
      const hash = await shim.subtle.digest({name: pbkdf2.hash}, new shim.TextEncoder().encode(m))
      return Buffer.from(hash)
    }
    module.exports = sha256hash