Sandisk Extreme 128GB LDPC?

[martyjelen]

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

[melvin]

Most probably it is. Can you upload a better photo where all the lines are visible?

[martyjelen]

Most probably it is. Can you upload a better photo where all the lines are visible?

Sure, here it is.

Attachments

[melvin]

Yes this is LDPC.

[martyjelen]

Yes this is LDPC.

OK, thank you very much for saving my time.

[arvika]

martyjelen, you can check such cases at future at my database: https://www.flash-killer.com/monolith-database

[martyjelen]

martyjelen, you can check such cases at future at my database: https://www.flash-killer.com/monolith-database

Thank you.

[sourcerer]

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.

[sourcerer]

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

[martyjelen]

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?

[sourcerer]

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.

[arvika]

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.

[Arch Stanton]

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.

[Arch Stanton]

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!