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Aug
8
comment Bitlocker won't initialize on a 4TB drive with 4K sectors
Were you unable to turn on BitLocker before copying some data?
Jul
26
comment UPS switches to battery power when plugging in devices?
@DavidSchwartz Could be the wiring in the home, too.
Jul
26
comment UPS switches to battery power when plugging in devices?
@WilliamHilsum "It seems most likely that the UPS is damaged and is under performing" - Why?
Jul
17
comment Bitlocker on motherboard replacement
@Soum When you encrypted your data drive, you should have been offered the opportunity to save a recovery key that you could use to access the drive after it was encrypted in case of TPM failure. The recovery keys are volume specific.
Jul
17
comment Bitlocker on motherboard replacement
@Soum Did you not have a copy of the recovery password/key for your encrypted volume? You can always access the encrypted data with that. If you didn't save a copy when prompted you're probably out of luck unless the old motherboard could be repaired.
Jul
17
comment Bitlocker on motherboard replacement
So you were using BitLocker with TPM+PIN? Did you have the recovery password/key stashed away somewhere? With that you should be good to go.
Jul
17
comment Bitlocker on motherboard replacement
BitLocker can be used without a TPM.
Jul
17
comment Change Bitlocker Recovery Key
What charleswj81 said.
Jul
17
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
@hbdgaf There are no "limitations on the blobs in the keyspace". The recovery key is a randomly generated 128-bit AES key. The numeric representation is purely a convenience for entry via the keyboard. Any random string of 128 bits can be represented as a decimal number. That says nothing about the quality of the RNG used to generate them.
Jul
16
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
I think your NSA GPU datacenter attack is also a fantasy. Even the entire world Gross Domestic Product for a year would be insufficient to cover the cost of just the electricity to brute even a 128-bit AES key. See: crypto.stackexchange.com/a/1148
Jul
16
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
I think you're confused. See my comments to Mick's answer and read the linked article. The divisible by 11 thing is a red herring and you're not even specifying which flavor of BSD you're talking about (or which flavor of encryption).
Jul
16
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
@hbdgaf I think it boils down to brute forcing a random 128-bit AES key. Unless there is some exploitable flaw in the RNG used, I don't suspect anybody would bother trying.
Jul
16
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
@hbdgaf The divisible by 11 thing is a red herring. The recovery password is a randomly generated 128-bit key (probably AES, protecting a copy of the volume master key). It is divided into eight 16 bit numbers, each of which is multiplied by 11 to allow for the divisible by 11 check during entry. See: blogs.msdn.com/b/si_team/archive/2006/08/10/694692.aspx
Jul
15
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
It's your answer.
Jul
15
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
I find terms like "reasonably resilient", "a long time", "reasonable time frame" and "is a BEAST" to be so non-specific that they're of very little value. I would find something like this to be valuable: "A brute force attack on system X would be expected to succeed on average after Y attempts, with each attempt having cost Z."
Jul
15
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
You have not provided any math to support your reasoning.
Jul
15
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
@bitlocked You have not attempted to answer the questions asked.
Jul
10
comment How resistant is BitLocker against brute force attacks on the 48 character recovery key?
That sounds like a cold boot attack and has nothing to do with a brute force attack on the recovery key.
Jul
10
comment Is it better to use Bitlocker or the built-in-drive-encryption that my ssd offers?
@Eddie For FDE solutions other than BitLocker that leverage AES-NI: en.wikipedia.org/wiki/AES_instruction_set#Applications
Jul
9
comment Is it better to use Bitlocker or the built-in-drive-encryption that my ssd offers?
I think that the worst thing that can be said about BitLocker is that the Elephant Diffuser was removed in Windows 8.