COLDCARD firmware PR #707: require external entropy for each new wallet
coldcard-firmware-pr-707
Latest reviewed change
source content difference between and
The pull-request state changed from Open to Closed.
Aug 7, 2026
Improve seed generation - mash timing with microsecond-resolution
#713
-Open
+Closed
scgbckbone
commented
Aug 7, 2026
First lines only. The complete diff is in the timeline below.
- Organisation
- Coinkite
- Evidence role
- Repository pull request
- Published
- not established
- Source changes
- 2
- Detected differences
- 3
- Unreviewed
- 0
- Copies held
- 4
A seven-commit proposal in the vendor's own firmware repository, open at first capture on 7 Aug 2026, opened by scgbckbone from a branch named improve_seed_gen-public. Its commits mix secure-element entropy into seed generation, reseed with the full 32-byte digest rather than a truncated one, require external entropy for every new master seed and for CCC and temporary seeds, warn before dice-only seed generation, and bump libngu so that the SHA-256 Hash-DRBG replaces Yasmarang. Registered 7 Aug 2026 after being reported in reddit-user-entropy-options; it is the vendor-side counterpart to the upstream libngu proposals already held, and its state is whatever the newest capture shows rather than what the record said when it was registered.
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The pull-request state changed from Open to Closed.
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What changed from the previous capture 2 lines
Aug 7, 2026 Improve seed generation - mash timing with microsecond-resolution #713 -Open +Closed scgbckbone commented Aug 7, 2026Extracted text as captured
Skip to content Navigation Menu Sign in Appearance settings Platform AI CODE CREATION GitHub CopilotWrite better code with AI GitHub Copilot appDirect agents from issue to merge MCP RegistryIntegrate external tools DEVELOPER WORKFLOWS ActionsAutomate any workflow CodespacesInstant dev environments IssuesPlan and track work Code ReviewManage code changes Code QualityEnforce quality at merge APPLICATION SECURITY GitHub Advanced SecurityFind and fix vulnerabilities Code securitySecure your code as you build Secret protectionStop leaks before they start EXPLORE Why GitHub Documentation Blog Changelog Marketplace View all features Solutions BY COMPANY SIZE Enterprises Small and medium teams Startups Nonprofits BY USE CASE App Modernization DevSecOps DevOps CI/CD View all use cases BY INDUSTRY HealthcareExcerpt only. The complete copy is held offline and backs quotations on this site. The original publication remains the canonical public source.
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The author closed the pull request and commented that it is replaced by strictly better #713, which improves seed generation with microsecond-resolution timing.
Recovered from the Internet Archive rather than captured by this project. The row records that third-party provenance separately from captures made by this project.
What changed from the previous capture 25 lines
Insights Improve seed gen & require external entropy for each new wallet - #707 #707 -Open +Closed scgbckbone wants to merge 7 commits into Coldcard:masterColdcard/firmware:masterfrom scgbckbone:improve_seed_gen-publicscgbckbone/firmware:improve_seed_gen-publicCopy head branch name to clipboard ConversationCommits7 (7)ChecksFiles changed -Open +Closed Improve seed gen & require external entropy for each new wallet#707 scgbckbone wants to merge 7 commits into Coldcard:masterColdcard/firmware:masterfrom Sorry, something went wrong. Uh oh! There was an error while loading. Please reload this page. +scgbckbone +mentioned this pull request +Aug 7, 2026 +Improve seed generation - mash timing with microsecond-resolution +#713 +Open +scgbckbone +commented +Aug 7, 2026 +Copy link +Copy Markdown +Collaborator +Author +replaced by strictly better #713 +All reactions +Sorry, something went wrong. +Uh oh! +There was an error while loading. Please reload this page. +scgbckbone +closed this +Aug 7, 2026 This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden charactersExtracted text as captured
Skip to content Navigation Menu Sign inAppearance settings Platform AI CODE CREATION GitHub CopilotWrite better code with AI GitHub Copilot appDirect agents from issue to merge MCP RegistryIntegrate external tools DEVELOPER WORKFLOWS ActionsAutomate any workflow CodespacesInstant dev environments IssuesPlan and track work Code ReviewManage code changes Code QualityEnforce quality at merge APPLICATION SECURITY GitHub Advanced SecurityFind and fix vulnerabilities Code securitySecure your code as you build Secret protectionStop leaks before they start EXPLORE Why GitHub Documentation Blog Changelog Marketplace View all features Solutions BY COMPANY SIZE Enterprises Small and medium teams Startups Nonprofits BY USE CASE App Modernization DevSecOps DevOps CI/CD View all use cases BY INDUSTRY Healthcare Financial servicesExcerpt only. The complete copy is held offline and backs quotations on this site. The original publication remains the canonical public source.
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Recovered from the Internet Archive rather than captured by this project. The row records that third-party provenance separately from captures made by this project.
What changed from the previous capture 0 lines
Extracted text as captured
Skip to content Navigation Menu Sign inAppearance settings Platform AI CODE CREATION GitHub CopilotWrite better code with AI GitHub Copilot appDirect agents from issue to merge MCP RegistryIntegrate external tools DEVELOPER WORKFLOWS ActionsAutomate any workflow CodespacesInstant dev environments IssuesPlan and track work Code ReviewManage code changes Code QualityEnforce quality at merge APPLICATION SECURITY GitHub Advanced SecurityFind and fix vulnerabilities Code securitySecure your code as you build Secret protectionStop leaks before they start EXPLORE Why GitHub Documentation Blog Changelog Marketplace View all features Solutions BY COMPANY SIZE Enterprises Small and medium teams Startups Nonprofits BY USE CASE App Modernization DevSecOps DevOps CI/CD View all use cases BY INDUSTRY Healthcare Financial servicesExcerpt only. The complete copy is held offline and backs quotations on this site. The original publication remains the canonical public source.
1 presentation-noise difference. Sidebar, ticker and other page chrome churn that our review classified as not being a change to what the source says.
- +5 -3 Only GitHub header chrome changed. The 'Sign in' and 'Appearance settings' labels split onto separate lines, and the search prompt changed from 'Type / to search' to 'Search/'.
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