BitLocker key change question

> Not entirely 100% sure on this one, but I do hope to be of some help )
>
> When you change the key, the drive does become re-encrypted inline with the
> new key. From what I imagine, if you try and understand that the way the
> drive encrypts depends on the key you first type, so if you type in the same
> key on another machine, in theory it could be encrypted the same way (I
> think...)
>
> If the computer reboots, not necessarily in beta builds (so might apply to
> the public release), the encryption will either kick off from where it left
> off, or decrypt it and ask for the key again - whether it's the same key you
> used before the encryption or whether it starts the whole process off again,
> still not sure.

> Not entirely 100% sure on this one, but I do hope to be of some help )
>
> When you change the key, the drive does become re-encrypted inline with
> the new key. From what I imagine, if you try and understand that the way
> the drive encrypts depends on the key you first type, so if you type in
> the same key on another machine, in theory it could be encrypted the same
> way (I think...)
>
> If the computer reboots, not necessarily in beta builds (so might apply to
> the public release), the encryption will either kick off from where it
> left off, or decrypt it and ask for the key again - whether it's the same
> key you used before the encryption or whether it starts the whole process
> off again, still not sure.
>
> I do think it'll vary on the software/hardware types of encryption
> though - you can get hardware chips with encryption stuff on it, so this
> may change how things encrypt and whether the answers I gave still apply
> or not. It's sketchy... but I hope that sheds *some* light on it ) We'll
> definately know when the public release comes out, as will a whole load of
> documentation comes with it.
>
> --
> Zack Whittaker
> » ZackNET Enterprises: www.zacknet.co.uk
> » MSBlog on ResDev: www.msblog.org
> » Vista Knowledge Base: www.vistabase.co.uk
> » This mailing is provided "as is" with no warranties, and confers no
> rights. All opinions expressed are those of myself unless stated so, and
> not
> of my employer, best friend, Ghandi, my mother or my cat. Glad we cleared
> that up!
>
> --: Original message follows :--
> "Dominik" <Dominik@discussions.microsoft.com> wrote in message
> news:03D924D8-0385-4CA9-9030-9F7044AED726@microsoft.com...

>> When you change the bitlocker key, the drive does get re-encrypted?
>> Sector by sector. What happens if the computer re-boots/ loses power
>> during
>> this process. Are there TWO keys active at that point?

>
>

> This isn't accurate.
>
> Dominik,
>
> the info you want is here.
>
> http://www.microsoft.com/technet/win...y/bittech.mspx
>
> They use two keys so that they don't have to decrypt/reencrypt the drive on
> a rekey.
>
> josh
> http://windowsconnected.com
>
>
> "Zack Whittaker" <admin@zacknet.co.uk> wrote in message
> news:OMz03x$ZGHA.5088@TK2MSFTNGP03.phx.gbl...

> > Not entirely 100% sure on this one, but I do hope to be of some help )
> >
> > When you change the key, the drive does become re-encrypted inline with
> > the new key. From what I imagine, if you try and understand that the way
> > the drive encrypts depends on the key you first type, so if you type in
> > the same key on another machine, in theory it could be encrypted the same
> > way (I think...)
> >
> > If the computer reboots, not necessarily in beta builds (so might apply to
> > the public release), the encryption will either kick off from where it
> > left off, or decrypt it and ask for the key again - whether it's the same
> > key you used before the encryption or whether it starts the whole process
> > off again, still not sure.
> >
> > I do think it'll vary on the software/hardware types of encryption
> > though - you can get hardware chips with encryption stuff on it, so this
> > may change how things encrypt and whether the answers I gave still apply
> > or not. It's sketchy... but I hope that sheds *some* light on it ) We'll
> > definately know when the public release comes out, as will a whole load of
> > documentation comes with it.
> >
> > --
> > Zack Whittaker
> > » ZackNET Enterprises: www.zacknet.co.uk
> > » MSBlog on ResDev: www.msblog.org
> > » Vista Knowledge Base: www.vistabase.co.uk
> > » This mailing is provided "as is" with no warranties, and confers no
> > rights. All opinions expressed are those of myself unless stated so, and
> > not
> > of my employer, best friend, Ghandi, my mother or my cat. Glad we cleared
> > that up!
> >
> > --: Original message follows :--
> > "Dominik" <Dominik@discussions.microsoft.com> wrote in message
> > news:03D924D8-0385-4CA9-9030-9F7044AED726@microsoft.com...

> >> When you change the bitlocker key, the drive does get re-encrypted?
> >> Sector by sector. What happens if the computer re-boots/ loses power
> >> during
> >> this process. Are there TWO keys active at that point?

> >
> >

>
>
>

> Thank you very much! That good article describes it well.
>
> Dominik
>
> "Josh" wrote:
>

>> This isn't accurate.
>>
>> Dominik,
>>
>> the info you want is here.
>>
>> http://www.microsoft.com/technet/win...y/bittech.mspx
>>
>> They use two keys so that they don't have to decrypt/reencrypt the drive
>> on
>> a rekey.
>>
>> josh
>> http://windowsconnected.com
>>
>>
>> "Zack Whittaker" <admin@zacknet.co.uk> wrote in message
>> news:OMz03x$ZGHA.5088@TK2MSFTNGP03.phx.gbl...

>> > Not entirely 100% sure on this one, but I do hope to be of some help
>> > )
>> >
>> > When you change the key, the drive does become re-encrypted inline with
>> > the new key. From what I imagine, if you try and understand that the
>> > way
>> > the drive encrypts depends on the key you first type, so if you type in
>> > the same key on another machine, in theory it could be encrypted the
>> > same
>> > way (I think...)
>> >
>> > If the computer reboots, not necessarily in beta builds (so might apply
>> > to
>> > the public release), the encryption will either kick off from where it
>> > left off, or decrypt it and ask for the key again - whether it's the
>> > same
>> > key you used before the encryption or whether it starts the whole
>> > process
>> > off again, still not sure.
>> >
>> > I do think it'll vary on the software/hardware types of encryption
>> > though - you can get hardware chips with encryption stuff on it, so
>> > this
>> > may change how things encrypt and whether the answers I gave still
>> > apply
>> > or not. It's sketchy... but I hope that sheds *some* light on it )
>> > We'll
>> > definately know when the public release comes out, as will a whole load
>> > of
>> > documentation comes with it.
>> >
>> > --
>> > Zack Whittaker
>> > » ZackNET Enterprises: www.zacknet.co.uk
>> > » MSBlog on ResDev: www.msblog.org
>> > » Vista Knowledge Base: www.vistabase.co.uk
>> > » This mailing is provided "as is" with no warranties, and confers no
>> > rights. All opinions expressed are those of myself unless stated so,
>> > and
>> > not
>> > of my employer, best friend, Ghandi, my mother or my cat. Glad we
>> > cleared
>> > that up!
>> >
>> > --: Original message follows :--
>> > "Dominik" <Dominik@discussions.microsoft.com> wrote in message
>> > news:03D924D8-0385-4CA9-9030-9F7044AED726@microsoft.com...
>> >> When you change the bitlocker key, the drive does get re-encrypted?
>> >> Sector by sector. What happens if the computer re-boots/ loses power
>> >> during
>> >> this process. Are there TWO keys active at that point?
>> >
>> >

>>
>>
>>