3 ms·
They're entropy for most practical purposes. But there's only 1000 possibilities, so that's less than 10 bits' worth.
by lmm 2y ago
They're entropy for most practical purposes. But there's only 1000 possibilities, so that's less than 10 bits' worth.
- boothby 2y agoEspecially if you're writing a file, the creation time is a big hint! Even nanoseconds won't help if you're leaking that many bits from your seed.
- tomsmeding 2y agoThat's milliseconds; nanoseconds are 1e-9 seconds. Still, the file creation time remark of sibling is pertinent.
- lmm 2y agoI was thinking of the step from milli to nano, so yeah 1e6 not 1e3, 20 bits not 10. But the point stands.