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Doesn’t chip and pin do this already? Also, even with signatures you still need some way to reverse errant and malicious charges. Cryptography isn’t a panacea
by koolba 6y ago
Doesn’t chip and pin do this already?
Also, even with signatures you still need some way to reverse errant and malicious charges. Cryptography isn’t a panacea for solving all real world problems.
- zelly 6y agoYes, modern cards are basically YubiKeys. You can't trust people (such as bank employees) to maintain private keys. That would never work. Maybe some kind of USB/Bluetooth device that can authorize your physical debit card can let online merchants debit bank accounts securely. I know they have had something similar in the UK for decades.