How Zcash Plans to Hide Your Keys From AI and Quantum Attacks
Summary
Zcash node developer Zakura says post-quantum signature opcodes are expected to arrive in January, enabling transparent transactions to use hash-based signatures that avoid vulnerable elliptic-curve cryptography. Its proposed approach combines WOTS backup signatures with rotating addresses; private information retrieval is intended to prevent wallet servers from linking those addresses. The private-query feature is available for testing in the Vizor wallet. The plan applies only to Zcash’s transparent pool, and Zakura has not specified when the opcodes would be activated network-wide. The effort comes amid broader warnings about potential AI- or quantum-driven breaks of current signatures.
