PalmID Terminal turns palm print and palm vein images into an encrypted biometric signature, then sends the signature to SaaS server.
PalmID SaaS matches the biometric signature with palm records in its database and sends the User ID of the matched record to a service that manages retailer’s transactions.
The retailer’s transaction service retrieves a credit card token associated with that User ID and sends it with the transaction total to the payment gateway.
Payment service provider charges the customer’ credit card account as if a physical credit card has been presented.