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Let's talk that through a bit more. I wonder if it could be used to create one-off cryptographic notes - that, when used (scanned), are somehow deleted and can
by jv22222 7y ago
Let's talk that through a bit more.
I wonder if it could be used to create one-off cryptographic notes - that, when used (scanned), are somehow deleted and can never be used again.
Can't think of a way off the top of my head, but I wonder.
- slfnflctd 7y agoIf the encryption is strong enough, you could assign a subset of predetermined keys to each card issued-- but you still need a robust server/network to verify the transaction ACID-style & invalidate the key (or part of the subset?) at the end while retaining the rollback ability until that final invalidation is verified. Tricky business, for sure. Seems theoretically plausible, but I'm sure there are many things I haven't thought of.
- arkh 7y agohttps://www.gemalto.com/financial/cards/payments/dynamic-code-verification https://www.gemalto.com/financial/cards/payments/dynamic-cod... Already used to make dynamic CVV codes for cards which change every 30 minutes.
- jv22222 7y agoThat’s cool