On 19 Aug 2016 08:57 +0000, from saibalka@xxxxxxxxxxx (Saibal Kumar Adhya): > Unfortunately, the hard disk crashed sometime back. It is a hardware > fault. There was no backup. > A data recovery agency managed to recover 50% of the sectors. > However it is unable to recover any data as the original disk was > encrypted. > So now trying to figure out how to de-crypt and recover some of the > data? Unfortunately, if the key slots are lost or damaged beyond repair, and you have no backup, then I am fairly certain that you are out of luck. I assume that when you say that there was no backup, you also mean that you do not have a LUKS header copy or master key data for the container. Such a situation is similar to having overwritten the key slot area of the disk, which is a good way to quickly decomission a LUKS-encrypted disk because it renders all other data non-recoverable (the data required to gain access to the payload data no longer exists). If you are able to somehow gain access to the key slots in the LUKS header, it should be possible to decrypt the (stored) payload data, to the extent that the data recovery agency was able to recover the data. What they were not able to recover will decrypt to nonsense. -- Michael Kjörling • https://michael.kjorling.se • michael@xxxxxxxxxxx “People who think they know everything really annoy those of us who know we don’t.” (Bjarne Stroustrup) _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
