https://watchz.cash/videos/watch/a36eedb3-6cd9-47ae-bdf0-ead941416245 It's looking like quantum computers may be a serious risk to public-key cryptography. The current design of Zcash is potentially vulnerable, for both privacy and integrity, to quantum attacks. Daira-Emma will describe how to fix it and what performance, bandwidth, and engineering trade-offs are likely to be necessary. This talk aims to get into some of the technical detail without assuming much prior knowledge of post-quantum cryptography. Technical Level: Advanced Timestamps: 00:00 Intro 01:00 A better answer to the "what is a quantum computer" question 04:03 Potential problems quantum computers can solve 08:58 Simplified quantum theory 14:28 Quantum interpretations 15:34 Cryptographically relevant quantum computers 19:11 Zcash potentially vulnerable cryptography 21:53 Encryption and addresses 27:31 Proving systems 30:48 Signatures 34:12 Size of addresses 39:08 Short-term actions and message apps 44:32 What’s next? Call to action 46:13 Questions and Answers Speaker: Daira-Emma is the R&D Engineering Manager for ECC, lead author of the Zcash protocol spec, and co-designer of the Zcash shielded protocols, the Halo 2 proof system, and the SPHINCS post-quantum signature scheme. Ze is also an activist for trans and disabled rights and an organiser of Manchester Trans Pride. Bluesky: @daira, *This session was curated by the Electric Coin Co. Livestream and video production support from Perrow Productions Zcon 6 - ZconVI - Synergy Through Decentralization Zcash conference 2025 March 4-7 Mon, 19 Oct 2026 16:49:33 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://watchz.cash https://watchz.cash/lazy-static/avatars/d9835cea-0da7-47f5-8d2b-16ab7ff35c55.png https://watchz.cash/videos/watch/a36eedb3-6cd9-47ae-bdf0-ead941416245 All rights reserved, unless otherwise specified in the terms specified at https://watchz.cash/about and potential licenses granted by each content's rightholder.