How do Apple Pay and Google Pay handle sensitive card info?
source link: https://nextbigwhat.com/how-do-apple-pay-and-google-pay-handle-sensitive-card-info/
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The diagram below shows the differences. Both approaches are very secure, but the implementations are different. To understand the difference, we break down the process into two flows.
2. Basic payment flow
๐๐ฉ๐ฉ๐ฅ๐ ๐๐๐ฒ: It doesnโt store any card info. It passes the card info to the bank. Bank returns a token called DAN (device account number). iPhone then stores DAN into a special hardware chip.
๐๐ฉ๐ฉ๐ฅ๐ ๐๐๐ฒ: For iPhone, the e-commerce server passes the DAN to the bank.
In the diagram, the red arrow means the credit card info is available on the public network, although it is encrypted.
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