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Merge pull request #1703 from merlokk/t5577_doc

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add info to guide
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Oleg Moiseenko 2022-06-24 21:58:10 +03:00 • committed by GitHub
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doc/T5577_Guide.md
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@ -462,7 +462,9 @@ required, please do not proceed.
***Reading a T5577 block with a password when a password is not
enabled can result in locking the card. Please only use read with a
password when it is known that a password is in use.***
password when it is known that a password is in use.
At least don't use block 0 for this and password with `1` in the most significant bit***
The proxmark3 has a safety check\!
```
@ -718,6 +720,27 @@ it, we can follow the password section and update the config from
_to be written_
## sniffing commands
Some readers work with cards via T55xx commands (read/write/etc) and think that they are safe)
The password in this case is sent in clear text.
So) There is a sniff command to get this command from the buffer or the field:
```
[usb] pm3 --> lf t55xx sniff
```
result:
```
[=] T55xx command detection
[+] Downlink mode | password | Data | blk | page | 0 | 1 | raw
[+] ------------------------+------------+----------+-----+------+-----+-+-------------------------------------------------------------------------------
[+] Default write/pwd read | [FFxxxxxx] | FFxxxxxx | 6 | 0 | 16 | 45 | 1011111111101xxxxxxxxxxxxxxxx100000110
[+] Default write/pwd read | [FFxxxxxx] | FFxxxxxx | 6 | 0 | 17 | 46 | 1011111111101xxxxxxxxxxxxxxxx100000110
[+] -----------------------------------------------------------------------------------------------------------------------------------------------------
```
## T5577 and Keysy