--- title: How to Bring Your Own Key to a FROST Signing Group description: An exploration of how to modify the FROST distributed key generation (DKG) protocol to support Bring-Your-Own-Key (BYOK), allowing some participants to... canonical: https://daily.dev/posts/how-to-bring-your-own-key-to-a-frost-signing-group-013fqs6hh twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to Bring Your Own Key to a FROST Signing Group | daily.dev og:description: An exploration of how to modify the FROST distributed key generation (DKG) protocol to support Bring-Your-Own-Key (BYOK), allowing some participants to... og:url: https://daily.dev/posts/how-to-bring-your-own-key-to-a-frost-signing-group-013fqs6hh og:image: https://api.daily.dev/og/posts/013FQs6hh.png og:image:alt: How to Bring Your Own Key to a FROST Signing Group og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to Bring Your Own Key to a FROST Signing Group **[Conduition](https://daily.dev/sources/conduition)** · 9 min read · 0 upvotes · 0 comments ## Summary An exploration of how to modify the FROST distributed key generation (DKG) protocol to support Bring-Your-Own-Key (BYOK), allowing some participants to contribute pre-existing keys to a new FROST signing group. The author walks through the standard FROST DKG (Pedersen DKG), explains how signing shares relate to Shamir Secret Sharing, then proposes a modified DKG using Lagrange Interpolation to fix certain polynomial evaluations to pre-existing public keys. Limitations are discussed (at most t-1 BYOKs where t is the threshold), along with security considerations and potential use cases like composing hierarchical FROST groups or nested Fedimint instances. The author explicitly flags this as unreviewed, hypothetical cryptography. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Take control of your encryption keys with Bring Your Own Key on AWS](https://daily.dev/posts/take-control-of-your-encryption-keys-with-bring-your-own-key-on-aws-vxrsnt30q) · Dynatrace · 0 upvotes · 0 comments - [What is Bring Your Own Encryption \(BYOE\)?](https://daily.dev/posts/what-is-bring-your-own-encryption-byoe--yh4fqrkpx) · Security Boulevard · 0 upvotes · 0 comments --- Tags: [#cryptography](https://daily.dev/tags/cryptography), [#bitcoin](https://daily.dev/tags/bitcoin) [View this post on daily.dev](https://daily.dev/posts/how-to-bring-your-own-key-to-a-frost-signing-group-013fqs6hh) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How to Bring Your Own Key to a FROST Signing Group","url":"https://daily.dev/posts/how-to-bring-your-own-key-to-a-frost-signing-group-013fqs6hh","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-bring-your-own-key-to-a-frost-signing-group-013fqs6hh"},"datePublished":"2026-03-31T12:26:38.165Z","dateModified":"2026-03-31T12:31:24.651Z","description":"An exploration of how to modify the FROST distributed key generation (DKG) protocol to support Bring-Your-Own-Key (BYOK), allowing some participants to...","image":"https://media.daily.dev/image/upload/s--HRgLpUt6--/f_auto/v1722860399/public/Placeholder%2003","thumbnailUrl":"https://media.daily.dev/image/upload/s--HRgLpUt6--/f_auto/v1722860399/public/Placeholder%2003","isAccessibleForFree":true,"articleSection":"Conduition","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Conduition","logo":"https://media.daily.dev/image/upload/s--ccPW9yO---/f_auto,q_auto/v1774959966/logos/conduition?_a=BAMAMiWQ0","url":"https://daily.dev/sources/conduition"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/how-to-bring-your-own-key-to-a-frost-signing-group-013fqs6hh","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"cryptography,bitcoin","timeRequired":"PT9M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Conduition","item":"https://daily.dev/sources/conduition"},{"@type":"ListItem","position":3,"name":"How to Bring Your Own Key to a FROST Signing Group"}]} ```