28 Jan
2019
28 Jan
'19
5:41 a.m.
On 2019-01-28 at 10:12:28 Patrick O'Callaghan wrote:
Another point: several people have mentioned using /dev/urandom. It's important to note that this is a *pseudo-random* generator. It starts from a random seed, but from that generates a completely deterministic pattern. If you have the seed, you have everything. And since the idea here is to overwrite the disk, the first part of which contains "plaintext" that follows a regular layout (partition table etc.) it makes the task of decoding the disk even easier as that's the only part you would actually have to analyse at a physical level.
But it is just a little more random than all zeroes.
-- Regards, Erik P. Olsen