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Issues decrypting L520 supervisor password

 
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thodek
Nou Venit


Joined: 25 May 2022
Posts: 1

PostPosted: Wed May 25, 2022 10:13 pm    Post subject: Issues decrypting L520 supervisor password Reply with quote

Hi. I followed the tutorial in https://www.allservice.ro/forum//viewtopic.php?t=47 to retrieve a TP L520 supervisor password. I managed to dump the eeprom contents using a SIPROG. The dump went smoothly and R24RF08 didn't report any errors at all.

Seems like the password is stored in hex on 0x338, as "d7 dd 86 37 a0 e3 fb 99" (and repeated on 0x340), but IBMpass translates it into whitespaces and an asterisk in Scancode mode, or just garbled text when using Alternate Scancode mode. Both results are unusable as supervisor passwords.

I made another dump using the patcher provided along R24RF08 just in case (right before reading the eeprom contents). The dump ended up being identical to the previous one.

Is the stored password using some sort of stronger encryption? Is there anything else I could do?

Thank you so much for your help and all the useful resources.
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victor
S.F. Boss


Joined: 07 Mar 2004
Posts: 2581
Location: Staff

PostPosted: Fri May 27, 2022 3:10 pm    Post subject: Reply with quote

PAssphrase could be on (TCPA lock)

Email us at support@ allservice.ro and attach the dump, so we'll have a look
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Victor Voinea
ALLservice HQ, Romania.
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