Writing password protected NFC25 Tag

[ZKhan.1]

I want to implement writing of data on password-protected NFC 25 tag) ST25DV04K

In my case, I have enabled write protection on Area1 with password 1 set using the NFC tap App.

I want to use a known password to enable my Android and iOS to write the data on these tags.

Could you please point ot to the example or resources to implement this feature?

[France Berthelot · Accepted solution]

Hello

Our application is based on a ST25SDK you can find here:

https://www.st.com/en/embedded-software/stsw-st25sdk001.html

Each application Android/iOS is based on ST25SDK and provides features to manage pwd and you can find resources (Source code) here:

Android -> https://www.st.com/en/embedded-software/stsw-st25001.html

iOS -> https://www.st.com/en/embedded-software/stsw-st25ios001.html

As example and for Android , search in files for ST25DVChangeAreasPasswordActivity

and/or ST25DVChangePwdActivity ... ST25DVPresentPwdActivity (presentPassword) for guidelines.

In term of description, refers to datasheet for descriptions: https://www.st.com/en/nfc/st25dv04k.html

BR