Questions tagged [cryptoshredding]
Crypto-shredding is the deletion of encrypted data by deletion of the encryption key.
7 questions
0 votes
1 answer
373 views
Using ATA Secure Erase after buying a second-hand laptop : is this enough?
I bought a second-hand laptop from a stranger. My (totally unjustified) concern is that there might be malware on the device. According to this answer, there is no easy fix if it's malicious firmware. ...
1 vote
2 answers
715 views
Does crypto shredding count as deletion in regards to CCPA?
I have a compliance question around crypto shredding and CCPA. I'm basically just wondering if crypto shredding is sufficient to comply with the CCPA customer deletion requests. I know that crypto ...
2 votes
1 answer
5k views
How to determine start and end bytes of LUKS header?
How can I determine the exact start byte and exact end byte of a LUKS header on a block storage device? I use Linux Unified Key Setup (LUKS) for Full Disk Encryption (FDE), so all of the data on my ...
4 votes
1 answer
2k views
An alternative for /dev/urandom
I like to overwrite my harddisk with random data. Since /dev/urandom as source is too slow to overwrite a large amount of data in a reasonable time, I'm looking for a good alternative. These two ...
1 vote
2 answers
581 views
Crypto-shredding & backups of keys
I was wondering, how is crypto-shredding implemented in an environment, where data backups/mirroring is mandatory for the "key database" - as it must not be possible to lose the machine/db with all ...
2 votes
2 answers
235 views
Is corrupting the ciphertext corruption a good erasure?
Normally when you wipe a drive there are still ghost remains of the data even after overwriting the disk multiple times. So I was wondering if you could encrypt the drive and then overwrite the ...
1 vote
1 answer
427 views
How is cryptoshredding a "sole pragmatic option for data disposal in the cloud"?
I'm studying for the CCSP exam and I think I'm missing something here... In reviewing data destruction/disposal methods, I'm aware that an on-premise IT environment has several options: Physical ...