Can someone explain how privacy wallets like #sparrow and #samourai turn a payment code into a more username-like, readable code? Everything I've read says it uses a "hashing algorithm" with no explanation. What is this algorithm called?
#FreeSamourai
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The payment code isn't changed.
When Sparrow or Ashigaru (a maintained fork of Samourai) allow you to use a more user friendly version of the payment code, it just looks up the payment code on the website that the Ashigaru team host.
https://paynym.rs
Does the Ashigaru and Sparrow app randomly generate the user-friendly version or does it use the payment code to create the user-friendly version?
The user friendly name (called PayNyms) comes from webserver current run by Ashigaru and previously run by Samourai. When we switched over to Ashigaru's we lost the ability to use the PayNyms previously generated from Samurai's webserver.
That makes sense. I guess my question is: How does the Ashigaru server create the PayNym from the payment code? Does the server just randomly make a PayNym and assign it, or does it use the payment code and use some kind of hash to create it? And, how are the Ashigaru PayNyms compatible with Sparrow? Do they use the same server?
They will be using the payment code (or hash of payment code) as the seed for an image+username generator.
As of a recent update Sparrow, they both point to the same webserver.
Great info. Is that image/username generator code available?
I don't believe that codd is available. It definitely wasn't for Samourai, since Ashigaru were unable to recreate the same Avatars and PayNyms used by Samourai. There might be some security concerns with opening up the exact algorithm.