Main » Forums home » Research and development

All times are UTC - 5 hours [ DST ]

Forum rules


Please do not post questions about data recovery cases here (use this forum instead). This forum is for topics on finding new ways to recover data. Accessing firmware, writing programs, reading bits off the platter, recovering data from dust...



Post new topic Reply to topic  Page 1 of 1
  [ 14 posts ] 
  Previous topic | Next topic 
Author Message
martyjelen
 Post subject: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 3:56 
Offline

Joined: January 23rd, 2024, 5:38
Posts: 9
Location: Czech republic
Hello, does anybody know if this SD card use LDPC ? I don't have pinout for this so I wonder if it's worth to find the correct one.

Thank you


Attachments:
IMG_20240415_095014.jpg
IMG_20240415_095014.jpg [ 1.48 MiB | Viewed 578 times ]
Top
 Profile  
 
melvin
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 5:59 
Offline
User avatar

Joined: September 16th, 2015, 9:06
Posts: 260
Location: Poland
Most probably it is. Can you upload a better photo where all the lines are visible?

_________________
odzyskiwanie danych
Top
 Profile  
 
martyjelen
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 6:20 
Offline

Joined: January 23rd, 2024, 5:38
Posts: 9
Location: Czech republic
melvin wrote:
Most probably it is. Can you upload a better photo where all the lines are visible?


Sure, here it is.


Attachments:
IMG_4990-min.jpg
IMG_4990-min.jpg [ 1.04 MiB | Viewed 514 times ]
Top
 Profile  
 
melvin
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 6:23 
Offline
User avatar

Joined: September 16th, 2015, 9:06
Posts: 260
Location: Poland
Yes this is LDPC.

_________________
odzyskiwanie danych
Top
 Profile  
 
martyjelen
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 6:30 
Offline

Joined: January 23rd, 2024, 5:38
Posts: 9
Location: Czech republic
melvin wrote:
Yes this is LDPC.


OK, thank you very much for saving my time.
Top
 Profile  
 
arvika
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 6:36 
Offline

Joined: October 24th, 2009, 15:22
Posts: 875
Location: Poland
martyjelen, you can check such cases at future at my database: https://www.flash-killer.com/monolith-database

_________________
Flash Killer - everyday new resources (pinout, XOR, ECC,config) for flash devices
Top
 Profile  
 
martyjelen
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 7:11 
Offline

Joined: January 23rd, 2024, 5:38
Posts: 9
Location: Czech republic
arvika wrote:
martyjelen, you can check such cases at future at my database: https://www.flash-killer.com/monolith-database

Thank you.
Top
 Profile  
 
sourcerer
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 8:52 
Offline

Joined: August 13th, 2016, 17:10
Posts: 197
Location: Vienna, Austria
According to my research the SanDisk Extreme is using LDPC, but the actual problem with it from my point of view is the encryption that the controller is using, not so much LDPC.
Top
 Profile  
 
sourcerer
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 8:53 
Offline

Joined: August 13th, 2016, 17:10
Posts: 197
Location: Vienna, Austria
Here is my table for the LDPC and other ECC of the various controllers and flash media: https://docs.google.com/spreadsheets/d/ ... edit#gid=0
Top
 Profile  
 
martyjelen
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 9:02 
Offline

Joined: January 23rd, 2024, 5:38
Posts: 9
Location: Czech republic
sourcerer wrote:
According to my research the SanDisk Extreme is using LDPC, but the actual problem with it from my point of view is the encryption that the controller is using, not so much LDPC.


Thanks. How can I check if SD card controller using encryption?
Top
 Profile  
 
sourcerer
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 10:45 
Offline

Joined: August 13th, 2016, 17:10
Posts: 197
Location: Vienna, Austria
I case you have a donor and the pinout you can use my initpattern tool to write XOR patterns on it, then you can dump it, and then you can use xorsearch to try to find the XOR patterns. If xorsearch doesn't find any patterns then it uses some kind of encryption. Another method I have been using it to read through the datasheet, some datasheets mention AES or AES-XTS encryption.
Top
 Profile  
 
arvika
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 11:37 
Offline

Joined: October 24th, 2009, 15:22
Posts: 875
Location: Poland
LDPC not will be such big game changer as everyone thinks, because a lot of cases with LDPC used encryption :(
I hope algo will be cracked, so it give some % more solved cases. But not 100%, more likely 20-30%, based on current statistics. But of course I can be wrong.

_________________
Flash Killer - everyday new resources (pinout, XOR, ECC,config) for flash devices
Top
 Profile  
 
Arch Stanton
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 18:15 
Offline
User avatar

Joined: May 13th, 2019, 7:50
Posts: 913
Location: Nederland
arvika wrote:
LDPC not will be such big game changer as everyone thinks, because a lot of cases with LDPC used encryption :(
I hope algo will be cracked, so it give some % more solved cases. But not 100%, more likely 20-30%, based on current statistics. But of course I can be wrong.


I was already wondering about this. Thanks for sharing your thoughts on this.

_________________
Joep - http://www.disktuna.com - video & photo repair & recovery service
Top
 Profile  
 
Arch Stanton
 Post subject: Re: Sandisk Extreme 128GB LDPC?
PostPosted: April 15th, 2024, 18:16 
Offline
User avatar

Joined: May 13th, 2019, 7:50
Posts: 913
Location: Nederland
sourcerer wrote:
Here is my table for the LDPC and other ECC of the various controllers and flash media: https://docs.google.com/spreadsheets/d/ ... edit#gid=0


merci beaucoup!

_________________
Joep - http://www.disktuna.com - video & photo repair & recovery service
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 14 posts ] 

Main » Forums home » Research and development

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 26 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