Comment on ATM SkimmersparentComments−PeterisP13yThey are "sort of" connecting to the bank - the idea is that the card issues an authorisation token w. the amount and other info, signs it with the private key, and then the merchant sends it to the bank which may approve or deny the transaction.
Comments
They are "sort of" connecting to the bank - the idea is that the card issues an authorisation token w. the amount and other info, signs it with the private key, and then the merchant sends it to the bank which may approve or deny the transaction.