[webpayments] Some amendmends (#75)

Init flow:
- split two roles of card issuer (usually, a bank) and TSP (can be either card schemes or bank)
- token is created (and sent to device) before (optional) user authentication
- after user auth, token is activated

Use flow:
- change transaction "token" to "cryptogram"
You can view, comment on, or merge this pull request online at:

  https://github.com/w3c/webpayments/pull/75

-- Commit Summary --

  * clarifications
  * updated to plantuml syntaxt
  * Update SamsungPayInit.pml
  * Update SamsungPayUse.pml
  * Update SamsungPayUse.pml
  * Update SamsungPayUse.pml

-- File Changes --

    M PaymentFlows/SamsungPay/SamsungPayInit.pml (38)
    M PaymentFlows/SamsungPay/SamsungPayUse.pml (6)

-- Patch Links --

https://github.com/w3c/webpayments/pull/75.patch
https://github.com/w3c/webpayments/pull/75.diff

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/webpayments/pull/75