From ce63d854000300aae3958e9429583bfa67316870 Mon Sep 17 00:00:00 2001
From: evoskuil <eric@voskuil.org>
Date: Fri, 12 Jun 2026 01:20:17 -0400
Subject: [PATCH 1/2] Add ultrafast NuGet dependency (disabled by default).

---
 builds/msvc/vs2022/bn/bn.props                                  | 1 +
 .../msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.props | 1 +
 .../vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj    | 2 ++
 builds/msvc/vs2022/libbitcoin-node-test/packages.config         | 1 +
 builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.props        | 1 +
 builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj      | 2 ++
 builds/msvc/vs2022/libbitcoin-node/packages.config              | 1 +
 builds/msvc/vs2026/bn/bn.props                                  | 1 +
 .../msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.props | 1 +
 .../vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj    | 2 ++
 builds/msvc/vs2026/libbitcoin-node-test/packages.config         | 1 +
 builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.props        | 1 +
 builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj      | 2 ++
 builds/msvc/vs2026/libbitcoin-node/packages.config              | 1 +
 14 files changed, 18 insertions(+)

diff --git a/builds/msvc/vs2022/bn/bn.props b/builds/msvc/vs2022/bn/bn.props
index db7ebe487..9448b880d 100644
--- a/builds/msvc/vs2022/bn/bn.props
+++ b/builds/msvc/vs2022/bn/bn.props
@@ -55,6 +55,7 @@
 
   <Target Name="LinkageInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Linkage-secp256k1 : $(Linkage-secp256k1)" Importance="high"/>
+    <Message Text="Linkage-ultrafast : $(Linkage-ultrafast)" Importance="high"/>
     <Message Text="Linkage-_system   : $(Linkage-libbitcoin-system)" Importance="high"/>
     <Message Text="Linkage-_database : $(Linkage-libbitcoin-database)" Importance="high"/>
     <Message Text="Linkage-_network  : $(Linkage-libbitcoin-network)" Importance="high"/>
diff --git a/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.props b/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.props
index 3b92d0f57..f488377cb 100644
--- a/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.props
+++ b/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.props
@@ -57,6 +57,7 @@
 
   <Target Name="LinkageInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Linkage-secp256k1 : $(Linkage-secp256k1)" Importance="high"/>
+    <Message Text="Linkage-ultrafast : $(Linkage-ultrafast)" Importance="high"/>
     <Message Text="Linkage-_system   : $(Linkage-libbitcoin-system)" Importance="high"/>
     <Message Text="Linkage-_database : $(Linkage-libbitcoin-database)" Importance="high"/>
     <Message Text="Linkage-_network  : $(Linkage-libbitcoin-network)" Importance="high"/>
diff --git a/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj b/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj
index 5435ca43a..c1d56ed94 100644
--- a/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj
+++ b/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj
@@ -160,6 +160,7 @@
     <Import Project="$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
@@ -175,6 +176,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets'))" />
   </Target>
   <ItemGroup>
diff --git a/builds/msvc/vs2022/libbitcoin-node-test/packages.config b/builds/msvc/vs2022/libbitcoin-node-test/packages.config
index cbdbf9a1f..97568013c 100644
--- a/builds/msvc/vs2022/libbitcoin-node-test/packages.config
+++ b/builds/msvc/vs2022/libbitcoin-node-test/packages.config
@@ -6,6 +6,7 @@
  |
  -->
 <packages>
+  <package id="UltrafastSecp256k1-vc143" version="4.1.1.4" targetFramework="Native" />
   <package id="boost" version="1.86.0" targetFramework="Native" />
   <package id="boost_container-vc143" version="1.86.0" targetFramework="Native" />
   <package id="boost_iostreams-vc143" version="1.86.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.props b/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.props
index 100424c81..6214b2531 100644
--- a/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.props
+++ b/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.props
@@ -59,6 +59,7 @@
 
   <Target Name="LinkageInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Linkage-secp256k1 : $(Linkage-secp256k1)" Importance="high"/>
+    <Message Text="Linkage-ultrafast : $(Linkage-ultrafast)" Importance="high"/>
     <Message Text="Linkage-_system   : $(Linkage-libbitcoin-system)" Importance="high"/>
     <Message Text="Linkage-_database : $(Linkage-libbitcoin-database)" Importance="high"/>
     <Message Text="Linkage-_network  : $(Linkage-libbitcoin-network)" Importance="high"/>
diff --git a/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj b/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj
index 42e68b878..d9678d114 100644
--- a/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj
+++ b/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj
@@ -238,6 +238,7 @@
     <Import Project="$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -252,6 +253,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets'))" />
   </Target>
   <ItemGroup>
     <Natvis Include="..\..\debug.natvis" />
diff --git a/builds/msvc/vs2022/libbitcoin-node/packages.config b/builds/msvc/vs2022/libbitcoin-node/packages.config
index f6d72ac9c..a7b697e23 100644
--- a/builds/msvc/vs2022/libbitcoin-node/packages.config
+++ b/builds/msvc/vs2022/libbitcoin-node/packages.config
@@ -6,6 +6,7 @@
  |
  -->
 <packages>
+  <package id="UltrafastSecp256k1-vc143" version="4.1.1.4" targetFramework="Native" />
   <package id="boost" version="1.86.0" targetFramework="Native" />
   <package id="boost_container-vc143" version="1.86.0" targetFramework="Native" />
   <package id="boost_iostreams-vc143" version="1.86.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2026/bn/bn.props b/builds/msvc/vs2026/bn/bn.props
index db7ebe487..9448b880d 100644
--- a/builds/msvc/vs2026/bn/bn.props
+++ b/builds/msvc/vs2026/bn/bn.props
@@ -55,6 +55,7 @@
 
   <Target Name="LinkageInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Linkage-secp256k1 : $(Linkage-secp256k1)" Importance="high"/>
+    <Message Text="Linkage-ultrafast : $(Linkage-ultrafast)" Importance="high"/>
     <Message Text="Linkage-_system   : $(Linkage-libbitcoin-system)" Importance="high"/>
     <Message Text="Linkage-_database : $(Linkage-libbitcoin-database)" Importance="high"/>
     <Message Text="Linkage-_network  : $(Linkage-libbitcoin-network)" Importance="high"/>
diff --git a/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.props b/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.props
index 3b92d0f57..f488377cb 100644
--- a/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.props
+++ b/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.props
@@ -57,6 +57,7 @@
 
   <Target Name="LinkageInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Linkage-secp256k1 : $(Linkage-secp256k1)" Importance="high"/>
+    <Message Text="Linkage-ultrafast : $(Linkage-ultrafast)" Importance="high"/>
     <Message Text="Linkage-_system   : $(Linkage-libbitcoin-system)" Importance="high"/>
     <Message Text="Linkage-_database : $(Linkage-libbitcoin-database)" Importance="high"/>
     <Message Text="Linkage-_network  : $(Linkage-libbitcoin-network)" Importance="high"/>
diff --git a/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj b/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj
index d1e260ec0..d72f640f8 100644
--- a/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj
@@ -160,6 +160,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
@@ -175,6 +176,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets'))" />
   </Target>
   <ItemGroup>
diff --git a/builds/msvc/vs2026/libbitcoin-node-test/packages.config b/builds/msvc/vs2026/libbitcoin-node-test/packages.config
index e8084722d..693373b14 100644
--- a/builds/msvc/vs2026/libbitcoin-node-test/packages.config
+++ b/builds/msvc/vs2026/libbitcoin-node-test/packages.config
@@ -6,6 +6,7 @@
  |
  -->
 <packages>
+  <package id="UltrafastSecp256k1-vc145" version="4.1.1.4" targetFramework="Native" />
   <package id="libbitcoin-boost" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_container-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_iostreams-vc145" version="1.91.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.props b/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.props
index 100424c81..6214b2531 100644
--- a/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.props
+++ b/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.props
@@ -59,6 +59,7 @@
 
   <Target Name="LinkageInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Linkage-secp256k1 : $(Linkage-secp256k1)" Importance="high"/>
+    <Message Text="Linkage-ultrafast : $(Linkage-ultrafast)" Importance="high"/>
     <Message Text="Linkage-_system   : $(Linkage-libbitcoin-system)" Importance="high"/>
     <Message Text="Linkage-_database : $(Linkage-libbitcoin-database)" Importance="high"/>
     <Message Text="Linkage-_network  : $(Linkage-libbitcoin-network)" Importance="high"/>
diff --git a/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj b/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj
index 65b8aa826..18d6a4e44 100644
--- a/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj
@@ -238,6 +238,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -252,6 +253,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets'))" />
   </Target>
   <ItemGroup>
     <Natvis Include="..\..\debug.natvis" />
diff --git a/builds/msvc/vs2026/libbitcoin-node/packages.config b/builds/msvc/vs2026/libbitcoin-node/packages.config
index bf01d5b19..e35f028f7 100644
--- a/builds/msvc/vs2026/libbitcoin-node/packages.config
+++ b/builds/msvc/vs2026/libbitcoin-node/packages.config
@@ -6,6 +6,7 @@
  |
  -->
 <packages>
+  <package id="UltrafastSecp256k1-vc145" version="4.1.1.4" targetFramework="Native" />
   <package id="libbitcoin-boost" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_container-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_iostreams-vc145" version="1.91.0" targetFramework="Native" />

From a041fcb0cc51e443bf311a2f0648650e213faca5 Mon Sep 17 00:00:00 2001
From: evoskuil <eric@voskuil.org>
Date: Sat, 13 Jun 2026 19:12:49 -0400
Subject: [PATCH 2/2] Update ultrafast nuget to 4.1.1.7.

---
 .../libbitcoin-node-test/libbitcoin-node-test.vcxproj       | 4 ++--
 builds/msvc/vs2022/libbitcoin-node-test/packages.config     | 2 +-
 builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj  | 4 ++--
 builds/msvc/vs2022/libbitcoin-node/packages.config          | 2 +-
 .../libbitcoin-node-test/libbitcoin-node-test.vcxproj       | 6 +++---
 builds/msvc/vs2026/libbitcoin-node-test/packages.config     | 2 +-
 builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj  | 6 +++---
 builds/msvc/vs2026/libbitcoin-node/packages.config          | 2 +-
 8 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj b/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj
index c1d56ed94..ba0f259fa 100644
--- a/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj
+++ b/builds/msvc/vs2022/libbitcoin-node-test/libbitcoin-node-test.vcxproj
@@ -160,7 +160,7 @@
     <Import Project="$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" />
-    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
@@ -176,7 +176,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_unit_test_framework-vc143.1.86.0\build\boost_unit_test_framework-vc143.targets'))" />
   </Target>
   <ItemGroup>
diff --git a/builds/msvc/vs2022/libbitcoin-node-test/packages.config b/builds/msvc/vs2022/libbitcoin-node-test/packages.config
index 97568013c..75e564d31 100644
--- a/builds/msvc/vs2022/libbitcoin-node-test/packages.config
+++ b/builds/msvc/vs2022/libbitcoin-node-test/packages.config
@@ -6,7 +6,7 @@
  |
  -->
 <packages>
-  <package id="UltrafastSecp256k1-vc143" version="4.1.1.4" targetFramework="Native" />
+  <package id="UltrafastSecp256k1-vc143" version="4.1.1.7" targetFramework="Native" />
   <package id="boost" version="1.86.0" targetFramework="Native" />
   <package id="boost_container-vc143" version="1.86.0" targetFramework="Native" />
   <package id="boost_iostreams-vc143" version="1.86.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj b/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj
index d9678d114..884cf2448 100644
--- a/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj
+++ b/builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj
@@ -238,7 +238,7 @@
     <Import Project="$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets" Condition="Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" />
-    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -253,7 +253,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_thread-vc143.1.86.0\build\boost_thread-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)boost_url-vc143.1.86.0\build\boost_url-vc143.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc143.0.6.1\build\native\secp256k1_vc143.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.4\build\native\UltrafastSecp256k1-vc143.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc143.4.1.1.7\build\native\UltrafastSecp256k1-vc143.targets'))" />
   </Target>
   <ItemGroup>
     <Natvis Include="..\..\debug.natvis" />
diff --git a/builds/msvc/vs2022/libbitcoin-node/packages.config b/builds/msvc/vs2022/libbitcoin-node/packages.config
index a7b697e23..f85982f3b 100644
--- a/builds/msvc/vs2022/libbitcoin-node/packages.config
+++ b/builds/msvc/vs2022/libbitcoin-node/packages.config
@@ -6,7 +6,7 @@
  |
  -->
 <packages>
-  <package id="UltrafastSecp256k1-vc143" version="4.1.1.4" targetFramework="Native" />
+  <package id="UltrafastSecp256k1-vc143" version="4.1.1.7" targetFramework="Native" />
   <package id="boost" version="1.86.0" targetFramework="Native" />
   <package id="boost_container-vc143" version="1.86.0" targetFramework="Native" />
   <package id="boost_iostreams-vc143" version="1.86.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj b/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj
index d72f640f8..a13ce22fd 100644
--- a/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-node-test/libbitcoin-node-test.vcxproj
@@ -160,7 +160,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
-    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
@@ -176,7 +176,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets'))" />
   </Target>
   <ItemGroup>
@@ -187,4 +187,4 @@
   <ItemGroup>
     <Natvis Include="..\..\debug.natvis" />
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/builds/msvc/vs2026/libbitcoin-node-test/packages.config b/builds/msvc/vs2026/libbitcoin-node-test/packages.config
index 693373b14..97aed24fa 100644
--- a/builds/msvc/vs2026/libbitcoin-node-test/packages.config
+++ b/builds/msvc/vs2026/libbitcoin-node-test/packages.config
@@ -6,7 +6,7 @@
  |
  -->
 <packages>
-  <package id="UltrafastSecp256k1-vc145" version="4.1.1.4" targetFramework="Native" />
+  <package id="UltrafastSecp256k1-vc145" version="4.1.1.7" targetFramework="Native" />
   <package id="libbitcoin-boost" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_container-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_iostreams-vc145" version="1.91.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj b/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj
index 18d6a4e44..3295d926a 100644
--- a/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-node/libbitcoin-node.vcxproj
@@ -238,7 +238,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
-    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -253,9 +253,9 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.4\build\native\UltrafastSecp256k1-vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.1.1.7\build\native\UltrafastSecp256k1-vc145.targets'))" />
   </Target>
   <ItemGroup>
     <Natvis Include="..\..\debug.natvis" />
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/builds/msvc/vs2026/libbitcoin-node/packages.config b/builds/msvc/vs2026/libbitcoin-node/packages.config
index e35f028f7..3a09727ce 100644
--- a/builds/msvc/vs2026/libbitcoin-node/packages.config
+++ b/builds/msvc/vs2026/libbitcoin-node/packages.config
@@ -6,7 +6,7 @@
  |
  -->
 <packages>
-  <package id="UltrafastSecp256k1-vc145" version="4.1.1.4" targetFramework="Native" />
+  <package id="UltrafastSecp256k1-vc145" version="4.1.1.7" targetFramework="Native" />
   <package id="libbitcoin-boost" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_container-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_iostreams-vc145" version="1.91.0" targetFramework="Native" />