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Merge pull request #2813 from Eltrick/uscuid-cl-doc2

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ZUID - Second clarification revision -- Visualise usable bytes
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Iceman 2025-03-27 16:26:09 +01:00 • committed by GitHub
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doc/magic_cards_notes.md
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@ -1343,7 +1343,7 @@ All commands are available before sealing.
^[Top](#top) ^[Top](#top)
That tag is a UID tag, built on USCUID chip. It doesn't sold separately, but could be found on marketplaces under the guise of a UID tag. That tag is a UID tag, built on USCUID chip. It is not sold separately, but could be found on marketplaces under the guise of a UID tag.
### Characteristics ### Characteristics
@ -1351,7 +1351,14 @@ That tag is a UID tag, built on USCUID chip. It doesn't sold separately, but cou
* Default configuration block value: `7AFF0000000000000000000000000008` * Default configuration block value: `7AFF0000000000000000000000000008`
* Responds to magic wakeup `40(7)`, `43` commands * Responds to magic wakeup `40(7)`, `43` commands
* Does not have hidden blocks, and only acknowledges the seventh (block use of key B if it is readable), eighth (direct write toggle), and last (SAK) config bytes. * Does not have hidden blocks, and only acknowledges the following bytes marked with carats. As such, Gen 1a mode cannot be disabled. All acknowledged bytes follow the standard USCUID format.
```
7AFF0000000000000000000000000008
^^ >> Block use of Key B if readable by ACL
^^ >> CUID mode
^^ >> SAK***
```
### Identify ### Identify
@ -1365,9 +1372,6 @@ hf mf info
``` ```
Currently Proxmark3 doesn't identify it as a separate tag.
Could be detected from the config block value.
### Parsed configuration ### Parsed configuration
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