New open-source cryptography library from Zakura delivers over 14x faster mobile proof generation without requiring any network changes
Three seconds doesn’t sound like a long time until you’re staring at a loading screen every time you want to send a private transaction. Zakura, the developer behind a Zcash full node client, just released an open-source library called Zakura Common that compresses shielded transaction creation from over three seconds to under 200 milliseconds.
The upgrade does not require a hard fork, a consensus change, or anything that would force the Zcash network to coordinate a synchronized update. Compatible wallets can simply integrate the new library and start serving faster transactions immediately.
The numbers behind the speed boost
Mobile proof generation, the computation-heavy step that makes shielded transactions possible on phones, is now more than 14 times faster. Desktop performance improved by over five times. Sinsemilla hashing, a core cryptographic operation used in Zcash’s Orchard protocol, saw a 21-fold improvement. Trial decryption, the process wallets use to scan the blockchain and identify incoming payments, got 1.5 times faster. And zk-SNARK verification, the zero-knowledge proof system that underpins Zcash’s privacy guarantees, now runs four to eight times quicker.
The library is dual-licensed under MIT and Apache 2.0. It will ship as part of Zakura version 1.3.0, and wallets built on Zakura’s infrastructure, such as Vizor, can integrate the improvements without waiting for broader network coordination.
Why shielded transaction speed matters
Sean Bowe, co-founder of both Zcash and Zakura, highlighted the practical significance of the release. He noted that the libraries deliver measurable benefits for shielded wallets and full nodes, enhancing responsiveness and user experience without requiring rule changes.
Market reaction and broader context
ZEC, Zcash’s native token, jumped approximately 5% following the Zakura Common announcement.
The release fits into a larger roadmap. Zakura has been building toward high-throughput private payments through its node software, and the broader Tachyon initiative aims to improve scalability across the Zcash network, wallets, and verification processes. Zakura Common will be integrated as part of Zakura v1.3.0, and focuses solely on enhancing existing shielded functionalities without altering the fundamental monetary policy or introducing new trust assumptions.
