Re:Apple Pay’s long road to paying off is getting shorter
by rswail on Tuesday April 25, 2023 @05:30AM
(#35698241)
The DPAN is eventually detokenized prior to submission to the issuer for authentication and payment.
So from Apple Pay wallet -> reader -> acquirer -> network -> issuer, the DPAN is used. When it reaches the issuer, the issuer detokenizes DPAN -> CPAN to process the request. When it responds, it retokenizes etc for the response.
So from Apple Pay wallet -> reader -> acquirer -> network -> issuer, the DPAN is used. When it reaches the issuer, the issuer detokenizes DPAN -> CPAN to process the request. When it responds, it retokenizes etc for the response.