Show HN: Building Production MPC Wallets: Architecture and Solana Implementation
The article discusses the architecture and implementation of Multi-Party Computation (MPC) wallets, emphasizing their security features. It highlights vulnerabilities in widely-used MPC protocols and the importance of proper implementation to ensure safety. The author provides a guide for building a secure 2-of-3 threshold signature wallet for Solana, addressing common pitfalls in current tutorials.
- ▪The Fireblocks cryptography research team disclosed vulnerabilities in over fifteen MPC implementations, exposing them to potential attacks.
- ▪Many existing tutorials on building MPC wallets may still be teaching flawed protocols that lack essential security measures.
- ▪The article serves as a comprehensive guide for creating a secure MPC wallet, detailing the necessary cryptographic protocols and architectural choices.
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Story provenance
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Record
| Original publisher | Hacker News (Newest) |
| Canonical URL | https://nethsara.substack.com/p/byowbuild-your-own-wallet-a-field |
| Publication time | Tue, 26 May 2026 06:54:23 +0000 |
| Retrieval time | 2026-05-26T07:07:46.336Z |
| Last seen | 2026-05-26T07:07:46.336Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | gewBlHBSkwB4 |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
BYOW(Build Your Own Wallet) : A Field Guide to Building MPC Wallets in 2026 - Part 1A practitioner's guide to building MPC wallets that actually work in 2026. Covers DKG, threshold signing with FROST, what BitForge taught the industry, and a working 2-of-3 reference implementation.NethsaraMay 25, 2026ShareFor the lazy guys, here’s the implementation on GitHub. Don’t forget to star the repo ⭐On August 9, 2023, the Fireblocks cryptography research team published one of the most consequential disclosures in wallet security history.Thanks for reading! Subscribe for free to receive new posts and support my work.SubscribeThey called it BitForge.The disclosure named names Coinbase Wallet-as-a-Service, Binance, Zengo.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Hacker News (Newest).
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