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3-D Secure and tokenization: protecting a transaction that never touches a chip
The same use case told visually, ready to present. Speaker notes carry the full explanation.
Payments
3-D Secure and tokenization
Protecting a transaction that never touches a chip
Two separate problems; Apple Pay and Google Pay combine both
3-D Secure and tokenization: protecting a transaction that never touches a chip · Classical Crypto Today1 / 5
3DS 2.x
A cryptogram proving authentication happened
Even a silent, frictionless approval produces a CAVV
3-D Secure and tokenization: protecting a transaction that never touches a chip · Classical Crypto Today2 / 5
Trust
Why the issuer trusts the CAVV
Like a certificate chain: proof the right ACS authenticated this PAN
3-D Secure and tokenization: protecting a transaction that never touches a chip · Classical Crypto Today3 / 5
Tokenization
Remove the PAN from the equation
3-D Secure and tokenization: protecting a transaction that never touches a chip · Classical Crypto Today4 / 5
Scope
The smallest possible boundary
The same idea as envelope encryption's KEK and DEK
3-D Secure and tokenization: protecting a transaction that never touches a chip · Classical Crypto Today5 / 5
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