Re: Secure IDE?

2003-08-11 Thread Michael Shields
In message <[EMAIL PROTECTED]>, [EMAIL PROTECTED] (Peter Gutmann) wrote: > If you're worried about Joe Burglar grabbing your laptop (for the value of the > laptop) and your business data being leaked as collateral damage, or someone > stumbling across your warez or pr0n, then it's probably adequate

Re: Secure IDE?

2003-08-03 Thread Sunder
So build an individual key for each cluster by some function that uses the original key. Same idea as using IV's, but with a few twists. IMHO, using CBC's for disk encryption sucks because you'll need to read previous sectors, and that's slower... I say cluster, not sector, as it's usually faste

Re: Secure IDE?

2003-08-02 Thread Adam Back
On Thu, Jul 31, 2003 at 12:04:13PM -0400, Trei, Peter wrote: > [...] > > >with a good distribution of IVs > > > > Where would you store them? The feature of this is that it's fully > > transparent, so you can't store IVs anywhere. > > I'm not really up on crypto file systems, but I beleive at le

RE: Secure IDE? (fwd)

2003-08-02 Thread Trei, Peter
> Mike Rosing[SMTP:[EMAIL PROTECTED] > > > Forwarded by request. > > -- Forwarded message -- > > sector address as the IV. IVs don't need to be > random, secret, or > unpredictable - they just need to be unrepeated. > (I'm > assuming > sector-at-a- > time encryption). > >

RE: Secure IDE? (fwd)

2003-08-02 Thread Mike Rosing
Forwarded by request. -- Forwarded message -- sector address as the IV. IVs don't need to be random, secret, or unpredictable - they just need to be unrepeated. (I'm assuming sector-at-a- time encryption). If the IV is not a secret how are we going to prevent block replay a

RE: Secure IDE?

2003-07-31 Thread Peter Gutmann
"Trei, Peter" <[EMAIL PROTECTED]> writes: >[EMAIL PROTECTED]:[EMAIL PROTECTED] >>"Trei, Peter" <[EMAIL PROTECTED]> writes: >>>with a good distribution of IVs >> >>Where would you store them? The feature of this is that it's fully >>transparent, so you can't store IVs anywhere. > >I'm not really up

RE: Secure IDE?

2003-07-31 Thread Trei, Peter
> [EMAIL PROTECTED]:[EMAIL PROTECTED] > > "Trei, Peter" <[EMAIL PROTECTED]> writes: > > >It's a move in the right direction, but I wish they had followed through > and > >done the right things: > > > >* [AES | 3DES]/CBC > > I get the feeling they use ECB for speed (heavy pipelining) rather than

RE: Secure IDE?

2003-07-31 Thread Trei, Peter
> [EMAIL PROTECTED]:[EMAIL PROTECTED] wrote: > > > "Trei, Peter" <[EMAIL PROTECTED]> writes: > > >No info on chaining modes, if any, nor of IV handling. > > DES/ECB, originally with a 40-bit key, more recently with 56-bit and 3DES. > Keys generated by the manufacturer onto a USB dongle. No eas

RE: Secure IDE?

2003-07-30 Thread Peter Gutmann
"Trei, Peter" <[EMAIL PROTECTED]> writes: >No info on chaining modes, if any, nor of IV handling. DES/ECB, originally with a 40-bit key, more recently with 56-bit and 3DES. Keys generated by the manufacturer onto a USB dongle. No easy way to make backups of the dongle. It's a messy tradeoff: If

Re: Secure IDE?

2003-07-30 Thread Ralf-P. Weinmann
On Wed, Jul 30, 2003 at 04:20:37PM -0400, Trei, Peter wrote: > ABIT has come out with a new motherboard, the > "IC7-MAX3" featuring something called 'Secure > IDE', which seems to involve HW crypto in the > onboard IDE controller: > > >From the ma

Re: Secure IDE?

2003-07-30 Thread Ralf-P. Weinmann
On Wed, Jul 30, 2003 at 04:20:37PM -0400, Trei, Peter wrote: > ABIT has come out with a new motherboard, the > "IC7-MAX3" featuring something called 'Secure > IDE', which seems to involve HW crypto in the > onboard IDE controller: > > >From the ma

RE: Secure IDE?

2003-07-30 Thread Trei, Peter
> Trei, Peter > > ABIT has come out with a new motherboard, the > "IC7-MAX3" featuring something called 'Secure > IDE', which seems to involve HW crypto in the > onboard IDE controller: > > From the marketing fluff at > http://www.abit.com.tw/abi

Secure IDE?

2003-07-30 Thread Trei, Peter
ABIT has come out with a new motherboard, the "IC7-MAX3" featuring something called 'Secure IDE', which seems to involve HW crypto in the onboard IDE controller: >From the marketing fluff at http://www.abit.com.tw/abitweb/webjsp/english/news1.jsp?pDOCNO=en_0307251