In the data sheet of ST25TV02K, it introduces that:
Present password command specificity Before doing a present password command, it is necessary to obtain a valid random number through the command ‘Get_Random_Number’ (see Section 6.4.41: Get Random Number) The passwords must be presented encrypted as explained in a Technical Note available on request.
But I don't find the "Technical Note" to explain how the password is encrypted and presented?
As my understand,
1, execute Get_Random_Number command to get a random number (two bytes);
2, some rule to generate an encrypted password with the random nuber and raw password(four bytes);
3, execute "Present password" command with the encrypted password.
Can you review if I am right and tell the detail for step 2?