[squeak-dev] securing SAR/MCZ files, certificates, etc

Edgar De Cleene edgardec2005 at gmail.com
Tue Sep 1 20:04:15 UTC 2015


String new enigma2015:
'I mentioned working on using SAR files and/or MCZ as a way to distribute device driver add-ons for Pi Scratch  a while ago. ‘ 

Gives

'LDxmF(f.Fm|D+.CXfF%D.FD9gfF%Dc''jDyf^mgD1F|B.CD$_ED1gD1D+1*D(.D|fg(Cf69(mD|m5fGmD|Cf5mCD1||z.FgDy.CDrfDcGC1(GODD1D+Of^mD1%.HD’

Having the input could be cracked, but if not …….
If like, i send private to you 




> On Sep 1, 2015, at 4:49 PM, tim Rowledge <tim at rowledge.org> wrote:
> 
> I mentioned working on using SAR files and/or MCZ as a way to distribute device driver add-ons for Pi Scratch  a while ago. The basics are working nicely and it’s time to ask for advice on securing the files. I’ve noticed assorted ssl/encryption/certificate checking related emails whizz by but never paid a lot of attention in the past.
> 
> An interesting additional issue for my use is that the file will need to be loadable/decryptable/checkable very fast, even on a Pi, since it will need to be reloaded (from file, not over the net) each time the user asks for a device needing one of these drivers. We don’t need to be utterly paranoid about the security since nobody is doing anything l crazy with this, like, oh, taking one up to the ISS…
> 
> Pointers to stuff to read, load, try, all appreciated from those with experience. No, I haven’t googled much about it since I know too little to be able to make a sensible start without advice.
> 
> tim
> --
> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
> Strange OpCodes: CWB: Carry With Borrow
> 
> 
> 



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