Hi,

> One thing you repeatedly mention is that sniffing data/credentials
> may be possible on the public server. I don't think this is ever high
> risk, as anyone doing "sensitive" computations shouldn't be using
> someone else's hardware to do it (SSL encrypted connection or not),
> especially as it is so easy to run your own personal copy of Sage
> (locally or somewhere that you trust). Also, by default, there's a
> big warning on running without https on anything but localhost.

With the same argument you could say one shouldn't use webmail or e-mail at 
all if one thinks e-mail is private. Also, it is not only issues with 
sensitive computations but SSL would mitigate quite a few threats Yoav pointed 
out (spoofing, attacks on others, etc.)

> Encrypting and authenticating worksheets seems beyond the scope of
> what the Sage notebook should do, there are plenty of 3rd party tools
> to do this cleanly and it's obvious (I hope) that sharing worksheets
> is sharing code. The %auto keyword could be bad though.

I agree that downloading and mailing worksheets might be beyond the scope of 
Sage but sharing within Sage certainly isn't. 

Also, for the download-and-share situation it would be very easy to add some 
protection because Sage has all the relevant crypto-protocols available 
anyway. It would send a clear signal that we care about security and would be 
relatively easy to implement.

Cheers,
Martin

-- 
name: Martin Albrecht
_pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
_otr: 47F43D1A 5D68C36F 468BAEBA 640E8856 D7951CCF
_www: http://www.informatik.uni-bremen.de/~malb
_jab: [email protected]



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