Collaborate Disseminate
We want to dispose of an old notebook whose display frame is damaged. It’s a Windows device with a BitLocker (TPM+PIN) encrypted SSD.
I am trying to devise a strategy for protecting the data on the drive from recovery that is both simple (… Continue reading Prepare Bitlocker protected PC for disposal
I was reading the Gentoo guide on Full Disk Encryption and couldn’t help but be triggered by the first line:
True Full Disk Encryption is not something that helps in most threat models, and it requires using separate storage to store all … Continue reading Why is FDE not something that helps in most threat models?
I have learned about attacks where the BitLocker master key can be sniffed on its way from the CPU to the TPM using a logic analyzer. However, in computer configurations without TPMs, this is obviously not possible. Furthermore, as I under… Continue reading Is BitLocker susceptible to any known attacks other than bruteforcing when used with a very strong passphrase and no TPM?
Given the following use & threat models, what is the optimal encryption implementation? Optimal is defined as the approach best matching the use model.
Use Model
Computer must be optimized for performance.
Computer use will include s… Continue reading In Linux, what encryption implementation approach is optimal given specific use & threat models?
I accidantally formatted the entire hard disk (quick format into NTFS)
it contains multiple partitions of different filesystem
ext4 encrypted with luks (whole partition encryption)
ext4 no encrypted
ntfs not encrtpted
I restored partitio… Continue reading Restoring lost encrypted partition [migrated]
I found that Thinkpads have hdd password support, which in terms uses some bizarre password hashing and ends up with 90 bits of entropy, which is again used as ATA security password to SED, which in terms encrypts the HDD:s own build-in al… Continue reading Are there any motherboards / UEFI that support hardware encryption on SED?
I found that Thinkpads have hdd password support, which in terms uses some bizarre password hashing and ends up with 90 bits of entropy, which is again used as ATA security password to SED, which in terms encrypts the HDD:s own build-in al… Continue reading Are there any motherboards / UEFI that support hardware encryption on SED?
Assuming a disk was full-disk encrypted using Bitlocker and the partition table is corrupted or entirely missing. Is it possible in any way to recover from this, given that the original Bitlocker password and Bitlocker recovery key are ava… Continue reading Is it possible to repair a corrupted partition table of a Bitlocker encrypted disk? [migrated]
Background: A Bitlocker encrypted hard disk (5TB WD Elements HDD USB) was accidentally wiped partially using the wiping tool Eraser Classic Portable (using the US DoD 7 passes method). The wiping only went on for a few minutes (max. 5 min… Continue reading How to properly determine if an Bitlocker encrypted disk has a corrupted partition table? [migrated]
I have a situation where I have access to a huge list of Bitlocker recovery keys but only the combination of the identifier (GUID) and recovery key are available. However the disk in question is corrupted and I don’t know which identifier … Continue reading How to identify a GUID of a corrupted Bitlocker disk in order to find the corresponding Bitlocker recovery key? [migrated]