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Avatar for Chen Chen
February 27, 2023
Education
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 defense

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Chen

February 27, 2023

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Transcript

  1. Contrast Make A Purchase 18 Web Code Auth Server CC

    Server SSN Server GET /selectPayment isSessionValid?

  2. Contrast Make A Purchase 19 Web Code Auth Server CC

    Server SSN Server GET /selectPayment Yes

  3. Contrast Make A Purchase 20 Web Code Auth Server CC

    Server SSN Server GET /selectPayment Get Cards for user=brian sid=123456789

  4. Contrast Make A Purchase 21 Web Code Auth Server CC

    Server SSN Server GET /selectPayment Get Cards for user=brian sid=123456789 IsValid? Yes

  5. Contrast Make A Purchase 22 Web Code Auth Server CC

    Server SSN Server GET /selectPayment Get Cards for user=brian sid=123456789 ending in 9876 ending in 0000 Only give back what is needed to web server! (e.g., not full credit card #s)

  6. Contrast Make A Purchase 23 Web Code Auth Server CC

    Server SSN Server Purchase $579,cardid=1 user=brian… POST /makePayment IsValid? Yes

  7. Contrast Make A Purchase 24 Web Code Auth Server CC

    Server SSN Server POST /makePayment Bank's Server

  8. Contrast Make A Purchase 25 Web Code Auth Server CC

    Server SSN Server POST /makePayment Ok! No need to ever report full credit card numbers back to web code (only time it sees is when user adds them)