MultiDrive – free backup, clone & wipe disk utility from Atola Technology

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 15 posts ] 
  Previous topic | Next topic 
Author Message
ddrecovery
 Post subject: Is Each WD Oxford Encryption Unique
PostPosted: November 9th, 2015, 14:37 
Offline
User avatar

Joined: June 11th, 2013, 17:01
Posts: 1773
Location: Phoenix, AZ USA
Or is it possible to use a matching USB Bridge board to decrypt the data? PC-3000 will not see this type of encryption.

_________________
HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group
Top
 Profile  
 
data-medics
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 9th, 2015, 15:04 
Offline
User avatar

Joined: April 3rd, 2011, 0:19
Posts: 2003
Location: Providence, RI
Each drive has a unique key, but it's not stored on the bridge at all I don't think. I believe it's stored in the SA and usually in a key sector within the HPA.

_________________
Data Medics - Hard Drive, SSD, and RAID Data Recovery Service Company
Top
 Profile  
 
lcoughey
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 9th, 2015, 15:08 
Offline
User avatar

Joined: February 9th, 2009, 16:13
Posts: 2592
Location: Ontario, Canada
data-medics wrote:
Each drive has a unique key, but it's not stored on the bridge at all I don't think. I believe it's stored in the SA and usually in a key sector within the HPA.

Actually, I do believe that some Oxford based controllers store the unique key on the bridge, making recovery without the original bridge much more complex.

_________________
Luke
Recovery Force Donor Inventory: 5,000+ Fully Cataloged HDDs & Growing
Top
 Profile  
 
ddrecovery
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 9th, 2015, 15:22 
Offline
User avatar

Joined: June 11th, 2013, 17:01
Posts: 1773
Location: Phoenix, AZ USA
lcoughey wrote:
Actually, I do believe that some Oxford based controllers store the unique key on the bridge, making recovery without the original bridge much more complex.

This is what I understand. Looks like a little hacking is in order although not sure how successful it will be. For anyone that has not seen this paper, here is some information on WD Encryption.


Attachments:
1002.pdf [1.5 MiB]
Downloaded 510 times

_________________
HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group
Top
 Profile  
 
einstein9
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 10th, 2015, 4:48 
Offline
User avatar

Joined: May 13th, 2010, 11:17
Posts: 2848
Location: Kuwait
lcoughey wrote:
data-medics wrote:
Each drive has a unique key, but it's not stored on the bridge at all I don't think. I believe it's stored in the SA and usually in a key sector within the HPA.

Actually, I do believe that some Oxford based controllers store the unique key on the bridge, making recovery without the original bridge much more complex.


+100

_________________
Kuwait Data Recovery - UNIX GTC
The only reason for time is so that everything doesn't happen at once. By: Albert Einstein
Top
 Profile  
 
northwind
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 10th, 2015, 6:11 
Offline
User avatar

Joined: January 28th, 2009, 10:54
Posts: 3550
Location: Greece
There are several variants of Oxford bridge encryption. Some store the key on the bridge, some not.
In any case, recovery is possible, even when original bridge is missing.

_________________
http://www.northwind.gr
SandForce SSD Recovery
Ransomware Reverse Engineering - NoMoreRansom! partners
Top
 Profile  
 
ddrecovery
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 10th, 2015, 13:36 
Offline
User avatar

Joined: June 11th, 2013, 17:01
Posts: 1773
Location: Phoenix, AZ USA
northwind wrote:
There are several variants of Oxford bridge encryption. Some store the key on the bridge, some not.
In any case, recovery is possible, even when original bridge is missing.

Any pointers? I see that the Oxford chip leaks the key to RAM when you enter in a new key. Any ideas how to get to this?

_________________
HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group
Top
 Profile  
 
ddrecovery
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 10th, 2015, 13:53 
Offline
User avatar

Joined: June 11th, 2013, 17:01
Posts: 1773
Location: Phoenix, AZ USA
Forgot to say, I am working with a clone of the original drive after head failure, so I presume the key will not be uploaded into the RAM. I basically need to decrypt the drive on the fly externally.

_________________
HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group
Top
 Profile  
 
northwind
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 11th, 2015, 4:40 
Offline
User avatar

Joined: January 28th, 2009, 10:54
Posts: 3550
Location: Greece
Did you look for Oxford encryption key at the end of the drive?
If there is no such key and you're sure you've read this part of the drive without errors, then it encrypts using the bridge.
If you don't have the original bridge, then recovery is still possible, but more complex.

_________________
http://www.northwind.gr
SandForce SSD Recovery
Ransomware Reverse Engineering - NoMoreRansom! partners
Top
 Profile  
 
Amarbir[CDR-Labs]
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 12th, 2015, 14:08 
Offline
User avatar

Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
ddrecovery wrote:
Forgot to say, I am working with a clone of the original drive after head failure, so I presume the key will not be uploaded into the RAM. I basically need to decrypt the drive on the fly externally.


Sir ,
Why Not Put The Original PCB And Clone Patient Using USB Interface Only .Possible Sometimes [ plus encryption will not be a issue ] .

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com
Top
 Profile  
 
ddrecovery
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 12th, 2015, 14:10 
Offline
User avatar

Joined: June 11th, 2013, 17:01
Posts: 1773
Location: Phoenix, AZ USA
Amarbir wrote:
Sir ,
Why Not Put The Original PCB And Clone Patient Using USB Interface Only .Possible Sometimes [ plus encryption will not be a issue ] .

The original PCB has been lost.

_________________
HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group
Top
 Profile  
 
Amarbir[CDR-Labs]
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 13th, 2015, 0:33 
Offline
User avatar

Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
ddrecovery wrote:
Amarbir wrote:
Sir ,
Why Not Put The Original PCB And Clone Patient Using USB Interface Only .Possible Sometimes [ plus encryption will not be a issue ] .

The original PCB has been lost.


:mrgreen: ,
Lol it Ran Off [ Its So Scared Of You ] . :D .Anyway Keep Us Posted On Developments And Have a Great Day Today

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com
Top
 Profile  
 
digisupport
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 13th, 2015, 3:14 
Offline
User avatar

Joined: March 6th, 2010, 3:46
Posts: 627
Location: Kolding | Denmark
Its funny how clients lose Oxford bridges, then they get 2 prices for recovery.
One without native bride and one with - suddenly the bridge is not so lost any more :wink:

_________________
Digitalsupport Data Recovery
https://digitalsupport.dk
Top
 Profile  
 
pcimage
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 13th, 2015, 3:23 
Offline

Joined: November 29th, 2006, 10:08
Posts: 7865
Location: UK
digisupport wrote:
Its funny how clients lose Oxford bridges, then they get 2 prices for recovery.
One without native bride and one with - suddenly the bridge is not so lost any more :wink:


Same with original PCB for hard drives, they strenuously deny that it's been changed until told it will cost a lot more if they can't produce the original PCB. Then miraculously they suddenly remember that their "PC expert friend" may have changed it and they still have it!

_________________
PC Image Data Recovery
http://www.pcimage.co.uk

New!! HDD-PCB.COM for all your PCB and donor HDD requirements!
Top
 Profile  
 
Amarbir[CDR-Labs]
 Post subject: Re: Is Each WD Oxford Encryption Unique
PostPosted: November 13th, 2015, 7:37 
Offline
User avatar

Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
pcimage wrote:
digisupport wrote:
Its funny how clients lose Oxford bridges, then they get 2 prices for recovery.
One without native bride and one with - suddenly the bridge is not so lost any more :wink:


Same with original PCB for hard drives, they strenuously deny that it's been changed until told it will cost a lot more if they can't produce the original PCB. Then miraculously they suddenly remember that their "PC expert friend" may have changed it and they still have it!


Haa Haa ,
Thats Great To Here Same Here BTW Lol .

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 15 posts ] 

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 64 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Switch to mobile style
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group