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#1 2017-09-04 11:02:02

Registered: 2017-08-15
Posts: 42

[Solved]Encrypting block 7 iclass_decryptionkey.bin

Hi Everyone,

I've been trying to tackle the 'hf iclass encryptblk <data>' command and haven't had any luck.. no matter what I try, I hit a wall.

It's my understanding it requires the TDES key and not the master authentication key which can be found either from a dumped RevA firmware.

Not sure if this key then needs permutation or how to even convert that to the .bin file it requests. I've been using xxd commands.

I would appreciate if you could put me in the right direction.

EDIT: here is how you create iclass_decryptionkey.bin

echo "key_here" > key_dump
xxd -r -p key_dump > iclass_decryptionkey.bin

Last edited by Dmanufacturer (2017-09-05 06:31:36)


#2 2018-02-23 16:30:26

Registered: 2013-04-25
Posts: 5,495

Re: [Solved]Encrypting block 7 iclass_decryptionkey.bin

yes,  that would be the HID transport 3des key needed.

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