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Philippe Teuwen 2020-10-23 01:24:54 +02:00
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This document is primarily intended for understanding `hf iclass loclass` and files used with it.
LOCLASS aim is to recoved the used masterkey for that specific reader configued in Elite mode / High Security mode.
LOCLASS aim is to recover the used masterkey for that specific reader configured in Elite mode / High Security mode.
LOCLASS, is a two part attack. First is the online part where you gather needed information from the reader by presenting a carefully selected CSN and save the responses to file. For the first part you run `hf iclass sim 2` and take notice of the saved filename.
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- `iclass_dump.bin`
this is a sample file from `hf iclass sim 2`, with complete keytable recovery, using 128 carefully selected CSN and the file contains the MAC results from reader.
- `iclass_key.bin`
this is file shall contain the legacy masterkey, AA1 key. loclass uses it to verify that permution / reversing / generation of key is correct.
this is file shall contain the legacy masterkey, AA1 key. loclass uses it to verify that permutation / reversing / generation of key is correct.