It was always an illusion
In reality anything that relies on patchable software/firmware can't be called secure. This could have been fixed with a single physical write protect switch - like they used to do.
5924 publicly visible posts • joined 8 Sep 2007
I think you'll find the actual lines are:
Red is grey and yellow white, but we decide which is right.
And which is, an illusion.
A quite clever comparison between judging colours under an inadequate light source, and basing decisions on incomplete information.
Ah (not so) fond memories!
In my case it was the storeman in an electronics factory. I was in the test department, and surprisingly sometimes equipment fails and parts break... only take back half a broken resistor and there will be a demand for the other half. If you manage to do that, it's the middle bit he wanted - you know the bit that's now a film of residue on the chassis. If you managed to extract the resistor burned but whole it would be "How do I know that was really a 100k one?".
If you are really that desperate for total reliability, you need something like the ancient system Racal had for one of their remote transceivers Two identical but completely separate units with independent power supplies and separate aerials. As far as I'm concerned dual processors (or anything really) in the same box doesn't cut it.
I firmly believe that anyone writing software (yes, even a 'simple' script) professionally should first prove that they can produce stable code for schools. This will be 'tested' by malicious attacks from pupils, multiple wrong guesses by absent-minded professors, and random entries by new, dreamy primary school teachers.
I have the scars!
or maybe even -1.
Not only did they screw up catastrophically , but the warning message implied us punters were under attack - without any mention that they'd changed their keys, so I immediately shut down everything including the router to take stock. After a couple of hours of checking against backups etc. I went on line again, at which point I got an email from a co-conspirator who had also been bitten by this the previous day and told me exactly what happened.
We keep exact duplicates on sourceforge as well. Rather than letting either repository auto sync we generate the commits from the same source in house. If the worst comes to the worst and github gets trashed, our users can still get clean copies.