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A comment on Google’s Fully Homomorphic Encryption Compiler – A Primer. Parent comment

Re:Google’s Fully Homomorphic Encryption Compiler – A Primer by easrng on Tuesday February 14, 2023 @07:27AM (#34788373)
You don't need zk-SNARKS for that. It's possible through some schemes, such as blind signatures, which have been successfully implemented many times but their usage for currency has (iirc) proved legally problematic.
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Re:Google’s Fully Homomorphic Encryption Compiler – A Primer by rattlesnakedave on Tuesday February 14, 2023 @09:42AM (#34789979)
For the uninitiated:

https://sceweb.sce.uhcl.edu/yang/teaching/csci5234WebSecurit...

Chaumian mints are gaining some popularity in the bitcoin world: https://fedimint.org/

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Re:Google’s Fully Homomorphic Encryption Compiler – A Primer by 3np on Tuesday February 21, 2023 @06:56AM (#34880038)
Sure, and apparently there's a coin for that too, by Chaum himself[0] :P

(If it's not obvious: Blind signature as such are solid but I wouldn't suggest anyone to give a cent to this sketchy project)

AFAIK (and I'd be thrilled to be proved wrong) we still haven't figured out how to solve double-spend using blind signatures without a blockchain and so the schemes I've seen so far invariably involve either that or a trusted mint and are therefore less interesting to use as currency.

Assuming you already have a base digital currency (like bitcoin), they can still be interesting on/as a higher layer.

[0]: https://xx.network/blog/decrypt-how-david-chaum-went-from-in...

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