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#1 2020-11-27 20:13:47

RFSec17
Contributor
Registered: 2017-06-01
Posts: 7

Picopass Personalization with Proxmark3

I’ve been digging through the forums looking for some direction on personalizing an unconfigured picopass cred for iClass and searching for any documentation online that would indicate the steps needed. I scanned through the Picopass 2 KS datasheet (here: http://www.proxmark.org/files/Documents … 20V1-0.pdf) but fail to grasp how to apply Proxmark operations based on that aside from modifying Block 1 of the credential. It seems I’ve been running in circles a bit so am posting for some guidance . The following posts that appear to be in the direction I’m looking for pop up when I search the forum for “Picopass Personalization”:

Programming iClass Credential that is Unconfigured and Uninitialized: http://www.proxmark.org/forum/viewtopic.php?id=6930
Little Question Change Master Key How-To, If Good or Not: http://www.proxmark.org/forum/viewtopic.php?id=5745

I‘m a bit unclear on how to properly do this and online searches haven’t produced much but have a hunch that in order to get this “personalized” aka configured to iClass I need to:
1. Use the Picopass default authentication key to rewrite the config block (I have other iClass configured credentials for this configuration information)
2. Change the master key to the HID iClass standard (?) <- Is this a requirement to personalize?

Can anyone tell me if this is going down the correct path? I’ve not seen how to change the master key from a picopass default to an iClass standard one. If it’s configured for iclass (by modifying the config block), will putting the Proxmark into reader mode and scanning the credential achieve that? Btw, hardware/software I’m using is the Proxmark3 RDV4 iceman fork

On a separate note, is the iClass Serial Protocol doc still in existence on the net? It’s mentioned all over the forum for becoming savvy on iClass but I can’t find it anywhere through search engines, specifying filetypes with .pdf extension. Has it been scrubbed from the Internet?

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