"Async Payjoin is the best hope for strong privacy in Bitcoin. Modeled after HTTPS, which enabled secure payments for the web, the Payjoin foundation has been quietly building up this privacy toolkit, which must be adopted by a large number of Bitcoin wallets, to deliver privacy at scale. Modeled after the Bitcoin and Lightning dev kits - which have become quite popular among wallet developers - and built with the same cryptographic primitives already in Bitcoin core, such that it can be easily integrated into the main Bitcoin implementation,"
"Async Payjoin is designed from the bottom up for mass adoption. Following in the footsteps of Let's Encrypt, which in the 2010s led the mass adoption of HTTPS on the web via open source, free software tooling, Async Payjoin looks to solve Bitcoin's biggest privacy pain points through an open privacy standard. Unlike specific privacy-focused wallets like Samourai Wallet and Wasabi, Async Payjoin is a software library that any bitcoin payments app can integrate, joining an open standard of privacy, similar to HTTPS on the web."
Async Payjoin adapts proven web security and dev-kit models to offer scalable Bitcoin privacy as an open standard and developer library. The design reuses Bitcoin’s existing cryptographic primitives for easy integration with core implementations and wallet developer toolkits. Async Payjoin (Payjoin V2) enables asynchronous PayJoin flows so transacting parties need not be simultaneously online, while remaining backwards compatible with non-supporting wallets. The project positions itself like Let’s Encrypt for privacy, aims for wide wallet adoption, provides a BIP77 technical reference and a plug-and-play dev kit on GitHub, and is supported by a nonprofit foundation.
Read at Bitcoin Magazine
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