Re: Crypto dongles to secure online transactions

2009-11-18 Thread Bill Frantz
jo...@iecc.com (John Levine) on Wednesday, November 18, 2009 wrote: >>Such a device does however need to be able to suppor multiple mutually >>distrusting verifiers, thus the destination public key is managed by >>the untrusted PC + browser, only the device signing key is inside >>the trust bounda

Re: hedging our bets -- in case SHA-256 turns out to be insecure

2009-11-18 Thread james hughes
I guess I need a slight correction... I missed a 'not'. On Nov 12, 2009, at 10:32 PM, james hughes wrote: > > On Nov 11, 2009, at 10:03 AM, Sandy Harris wrote: > >> On 11/8/09, Zooko Wilcox-O'Hearn wrote: >> >>> Therefore I've been thinking about how to make Tahoe-LAFS robust against >>> the

Re: Crypto dongles to secure online transactions

2009-11-18 Thread John Levine
>> In this case, heck, no. The whole point of this thing is that it is >> NOT remotely programmable to keep malware out. > >Which is perhaps why it is not a good idea to embed an SSL engine in such >a device. Agreed. A display and signing engine would be quite adequate. >Such a device does howe