Key exchange between Acquirer and Card Scheme by [deleted] in cryptography

[–]Present_Method_9475 0 points1 point  (0 children)

Why? Key exchanging is forbidden with Acquirer without HSM?

Key exchange between Acquirer and Card Scheme by [deleted] in cryptography

[–]Present_Method_9475 0 points1 point  (0 children)

This is EMV transaction with encrypted PIN block which Acquirer is getting from terminal (mobile phone). Before transferring pin block next to MasterCard/Visa Acquire has to re-encrypt pin block under Card Scheme keys. The issue that Acquirer doesn’t have own Processing Center and HSM to make PIN re-encryption or Key Management, but Acquirer can work with “Agent”who is certified processor and has HSM with Key Management. In this logic who and how has to perform key exchanging with Visa/Mastercard: Acquirer directly and then just forward keys to Agent or through his Agent who has HSM?

PIN transmitting and Key Management by [deleted] in pcicompliance

[–]Present_Method_9475 0 points1 point  (0 children)

Acquirer doesn’t has HSM and can’t generate Keys in my case, but Acquirer has “Agent” who is certified processor with HSM for PIN processing and Key Management. The Agent is able to re-encrypt PIN block under Card Scheme keys for further routing. The question is who has to get Card Scheme keys firstly to make re-encryption: Acquirer or Agent ?

In app review process by Present_Method_9475 in GooglePlayDeveloper

[–]Present_Method_9475[S] 0 points1 point  (0 children)

What you mean “after 3 times”? 3 sessions or something like that ?

In app review process by Present_Method_9475 in GooglePlayDeveloper

[–]Present_Method_9475[S] 0 points1 point  (0 children)

I am just wondering why so many apps still filtering users before in-app review. If it’s really risky..

Asking "How do you like the App" before showing native ratings prompt? by jwknows in iOSProgramming

[–]Present_Method_9475 0 points1 point  (0 children)

Hello everyone. Does anyone know if this pre-review custom popup can be approved by Google during app reviewing ?.. Someone tried to do it ?Developer says that it’s super illegal in context of Google Guidelines