Zcash is expected to introduce quantum-resistant signature opcodes in January, and the Vizor wallet will launch a private query function

The Zcash full node development team Zakura stated that the network is expected to introduce quantum-resistant signature opcodes in January, enabling hash-based signatures for transparent payments. Zcash's transparent payments publicly display transaction information, while shielded payments hide the sender, receiver, and amount.

This solution combines address rotation with private information retrieval, allowing wallets to change to a new address after each transaction, and reducing the risk of public key exposure through WOTS hash-based backup signatures. The Vizor wallet launched a private query feature this week, which users can enable in the settings for testing. Zakura's solution currently only covers Zcash transparent payments, and the network has not yet confirmed the activation time for the opcodes.

Ethereum researcher Justin Drake has warned that AI-driven mathematical breakthroughs could potentially crack related signatures in months rather than years; Vitalik Buterin believes there is a possibility that cryptographic technologies could be compromised within the next two years.