In 413DNA , The CC file INITIALIZED content is
'000F20010000FF0406E104008000000000000000000000000000000000000000'
As explained in http://apps4android.org/nfc-specifications/NFCForum-TS-Type-4-Tag_2.0.pdf
position 14 and 15 defined the read and write access.
00h NDEF file read access condition; read access without any security
00h NDEF file write access condition; write access without any security
Then , If I want to set NDEF file read access another just like 90 , or ff. but none of them useful.
How can I make the NDEF file private? or read before authorization?
Hi Yang,
This is described in “Type 4 Tag Technical Specification Version 1.0 2017-08-28 [T4T] NFC ForumTM”, freely available from NFC Forum webpage upon registration. Otherwise it is mapped like:
Hope that helps,
Have a great day,
Kan
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi Kan
From your graph I got the same as mine
00h NDEF file read access condition; read access without any security
00h NDEF file write access condition; write access without any security
Then , If I want to set NDEF file read access another one. just like 90 , or FE. but none of them useful.
I know the position 14 00h changes the NDEF file read access and the position 15 00h changes the NDEF file write access.
I Just want to change the CC file content. keep the NDEF file private, so that the NDEF file must be authorized before read.
Hi Kan
I have tried to changed the NTAG 413 DNA NDEF file access right.
After I changed NDEF file access rights of read access Key from 0E to 00.
I still can read NDEF message without any authorization.
So I wonder how to change the NDEF file read access to after authorize for NTAG 413 DNA.
The tag is 413DNA and the software is TagXplorer v1.0.0.4.