Tokenization for card data protection in transit payment systems
Focus on tokenisation in transit environment.
Indeed, the transformation of the card data in Card Number Alias or token enables to connect a card number to an individual card holder or an event.
This transformation is performed by cryptography computation.
The computation will always generate the same token for the same card if the same algorithm is used. This algorithm is a one way function, so, there’s no possibility to translate from a token to a card number.