[Box Backup] Cryptographic checking

Ben Summers boxbackup@fluffy.co.uk
Tue, 14 Sep 2004 11:24:13 +0100


I make certain claims for Box Backup with regard to it's use of 
cryptography. However, I am not an expert (as in, I do not do crypto 
every day for a living) and it has been historically shown that systems 
designed by non-professionals can have problems.

That's not to say that there's dodgy crypto in Box Backup, quite the 
contrary. I have read a large number of books, and spoken to the 
professionals about things (and even recently designed a crypto system 
which has been checked and passed as fine by the professionals), so I 
do not think that confidence in the system is misplaced.

But this is not good enough. Now that it is getting popular, I really 
think the crypto needs to be checked out by one of these professionals 
with a view to getting a statement from them for the web site.

Fortunately, I know just the people to do this, but it's not 
particularly cheap to get this done. I would estimate between 1000 and 
2000 UK pounds based on my previous experience of using them to check 
out things. I really can't afford this on my own.

Is it worth me getting a quote from them and asking the user community 
for donations to get this funded?

Thanks for any thoughts.

Ben