I tried to vnc to my laptop at home with my Proxmark3, but I may have closed it before leaving for work this evening. So, I don’t have access to the Proxmark3 client and don’t remember all of the commands exactly. But, you should be able to work out the details with the -h after “hf ic calcnewkey”
try
hf ic rdbl -b 3 -k F9D201B9445C3784 --raw
if you get a successful read, we’re getting somewhere.
Try the hf ic rdbl command I posted earlier (I assume you only read the last post I made, and not the one before it) to see what kind of response you get. That will determine how you go about the command to hopefully get your block 3 to where it needs to be.
Try it without the --raw modifier. The biggest hurdle will be recovering from your block 3 entry.
I just got to work, and kind of walked in to a shit show tonight. So, it’ll be a couple hours before I can work on anything else. I’ll try to work on a couple different options to see what we can come up with.
without going into too much detail, play around with the calcnewkey command. and use the various results to try with the rdbl -b 3 command.
edit—try
hf ic rdbl -b 3 -k OF91A7CCFC449CCF
it’s been a while, but that’s the Kdiv xor value from the original key and what you explicitly typed using your csn.
if that doesn’t work, try
578CF3234E76313E and then
581D54EFB232ADF1 as the key. Hopefully one of them will work.
Also, what exactly does “did not return anything” mean? NO response at all? or failed? or?
okay, when I get some time tonight when I get home from work I’ll try to wrap my head around exactly what you have going on. I think there’s diversification that needs to be done with your can and the value you sent to block 3 and coming up with what we actually need to use currently as the key in order to write the correct value to block 3 for the master authentication key. There WILL be a viola moment…hopefully
Okay…so I’m understanding your situation correctly. I want to make sure of a couple things.
You did or did not run a hf ic calcnewkey command before writing to block 3?
Did you just write the value F9D201B9445C3784to block 3 and call it a day?
Where did you come up with the value that you wrote to block 3?
I’m sure there is a way to recover, I’m just trying to work it out while juggling everything else.