Functions to be and structure of objects to send back and forth

[eklem]

read function

• read RFID-card

write function

• write to RFID-card
• and call Read function to check that same is read that was supposed to be written

Stringify JSON object

• Not sure, thinking really simple, almost not woth a function
• Call hashing funtion and create a hash on full stringified JSON object

Parse stringified JSON object

• Piece together all hash-verified chunks and verify the end result
• Parse it

Recursive function to determin size of RFID-chip

• Stringify JSON object to transfer
• First time: Try to write all data, halve the size if no success.
• 2-[n]: Continue with the size determined from first time, but still halve it if no success
• Keep control of reminder of stringified JSON object
• Keep control of chunk size of stringified JSON object to send (from first time and 2-[n] time if reassessed)

hashing function

• string (stringified JSON object)

Transmitter/reciever objects

Transmitter object (sent from transmitter to reciver)

• Stringified version of JSON object to be transferred
• Control-hash of stringified JSON object
• lastPartToSend: true/false

Reciver object (sent from reciever to transmitter)

• hashing the recieved chunk of string, and:
  • sending back hashVerified: true/false, or
  • just the hash done by the reciver
  • if lastPartToSend from transmitter: hashing the full stringified JSON object