jose/lib/help/uint64be.js
2019-01-27 11:17:30 +01:00

10 lines
244 B
JavaScript

const MAX_INT32 = Math.pow(2, 32)
module.exports = (value, buf = Buffer.allocUnsafe(8)) => {
const high = Math.floor(value / MAX_INT32)
const low = value % MAX_INT32
buf.writeUInt32BE(high, 0)
buf.writeUInt32BE(low, 4)
return buf
}