v4.3.0: bump version, fix C API string copy, restructure iOS pipeline

Author: kimlaine

CHANGES.md

@@ -1,5 +1,14 @@
 # List of Changes
 
+## Version 4.3.0
+
+- Merged [(PR #734)](https://github.com/microsoft/SEAL/pull/734): Fixed `IterTuple` constructors that returned references to local temporaries.
+- Merged [(PR #738)](https://github.com/microsoft/SEAL/pull/738): Fixed out-of-bounds read in `Serialization_IsCompatibleVersion` and `Serialization_IsValidHeader` (C API).
+- Bumped .NET target framework from `net8.0` to `net10.0`.
+- Added `cmake/ios_xcframework.cmake` and a CI artifact that produces `libseal-<ver>.xcframework` and `libsealc-<ver>.xcframework` in one command.
+- Added `CMakePresets.json` for Windows, Linux, and macOS development.
+- No further releases will be published to NuGet.org. Users who want newer versions in .NET projects should build their own NuGet package from source.
+
 ## Version 4.2.0
 
 - Merged [(PR #729)](https://github.com/microsoft/SEAL/pull/729): Updated `zlib` and `zstd` versions.

CMakeLists.txt

@@ -16,7 +16,7 @@ endif()
 #   4. SEAL C++ tests                             #
 ###################################################
 
-project(SEAL VERSION 4.2.0 LANGUAGES CXX C)
+project(SEAL VERSION 4.3.0 LANGUAGES CXX C)
 
 # [option] CMAKE_BUILD_TYPE (default: "Release")
 # Build in one of the following modes: Release, Debug, MinSizeRel, or RelWithDebInfo.

README.md

@@ -4,7 +4,7 @@ Microsoft SEAL is an easy-to-use open-source ([MIT licensed](LICENSE)) homomorph
 Microsoft SEAL is written in modern standard C++ and is easy to compile and run in many different environments.
 For more information about the Microsoft SEAL project, see [sealcrypto.org](https://www.microsoft.com/en-us/research/project/microsoft-seal).
 
-This document pertains to Microsoft SEAL version 4.2.
+This document pertains to Microsoft SEAL version 4.3.
 Users of previous versions of the library should look at the [list of changes](CHANGES.md).
 
 ## Contents
@@ -317,7 +317,7 @@ cmake -P cmake/ios_xcframework.cmake
 cmake -DBUILD_TYPE=Debug -DOUTPUT_DIR=./out -P cmake/ios_xcframework.cmake
 ```
 
-This configures and builds for both device (`iphoneos`) and simulator (`iphonesimulator`), installs both, and creates `libseal-4.2.xcframework` and `libsealc-4.2.xcframework`.
+This configures and builds for both device (`iphoneos`) and simulator (`iphonesimulator`), installs both, and creates `libseal-4.3.xcframework` and `libsealc-4.3.xcframework`.
 Both slices target `arm64`.
 Intermediate build files are placed in `out/ios-xcframework/` by default; override with `-DWORK_DIR=<path>`.
 
@@ -354,25 +354,25 @@ cmake --install $D/build-simulator --config Release --prefix $D/install-simulato
 # Stage headers per slice. XCFramework requires separate header trees because
 # generated files (e.g. config.h) can differ between device and simulator.
 mkdir -p $D/staging/device $D/staging/simulator
-rsync -a $D/install-device/include/SEAL-4.2/    $D/staging/device/
-rsync -a $D/install-simulator/include/SEAL-4.2/ $D/staging/simulator/
+rsync -a $D/install-device/include/SEAL-4.3/    $D/staging/device/
+rsync -a $D/install-simulator/include/SEAL-4.3/ $D/staging/simulator/
 
 # xcodebuild refuses to overwrite an existing .xcframework output.
-rm -rf libseal-4.2.xcframework libsealc-4.2.xcframework
+rm -rf libseal-4.3.xcframework libsealc-4.3.xcframework
 
 # Create the XCFrameworks.
 xcodebuild -create-xcframework                          \
-    -library $D/install-device/lib/libseal-4.2.a        \
+    -library $D/install-device/lib/libseal-4.3.a        \
     -headers $D/staging/device                          \
-    -library $D/install-simulator/lib/libseal-4.2.a     \
+    -library $D/install-simulator/lib/libseal-4.3.a     \
     -headers $D/staging/simulator                       \
-    -output  libseal-4.2.xcframework
+    -output  libseal-4.3.xcframework
 xcodebuild -create-xcframework                          \
-    -library $D/install-device/lib/libsealc-4.2.a       \
+    -library $D/install-device/lib/libsealc-4.3.a       \
     -headers $D/staging/device                          \
-    -library $D/install-simulator/lib/libsealc-4.2.a    \
+    -library $D/install-simulator/lib/libsealc-4.3.a    \
     -headers $D/staging/simulator                       \
-    -output  libsealc-4.2.xcframework
+    -output  libsealc-4.3.xcframework
 ```
 
 </details>
@@ -422,7 +422,7 @@ emcc \
  -Wall \
  -flto \
  -O3 \
- build/lib/libseal-4.2.a \
+ build/lib/libseal-4.3.a \
  --bind \
  -o "build/bin/seal_wasm.js" \
  -s WASM=1 \
@@ -486,7 +486,7 @@ It is very easy to link your own applications and libraries with Microsoft SEAL
 Simply add the following to your `CMakeLists.txt`:
 
 ```PowerShell
-find_package(SEAL 4.2 REQUIRED)
+find_package(SEAL 4.3 REQUIRED)
 target_link_libraries(<your target> SEAL::seal)
 ```
 
@@ -566,6 +566,19 @@ For contributing to Microsoft SEAL, please see [CONTRIBUTING.md](CONTRIBUTING.md
 
 To cite Microsoft SEAL in academic papers, please use the following BibTeX entries.
 
+### Version 4.3
+
+```tex
+    @misc{sealcrypto,
+        title = {{M}icrosoft {SEAL} (release 4.3)},
+        howpublished = {\url{https://github.com/Microsoft/SEAL}},
+        month = apr,
+        year = 2026,
+        note = {Microsoft Research, Redmond, WA.},
+        key = {SEAL}
+    }
+```
+
 ### Version 4.2
 
 ```tex

android/app/build.gradle

@@ -2,6 +2,12 @@ plugins {
     alias(libs.plugins.android.application)
 }
 
+def sealVersion = {
+ def m = file('../../CMakeLists.txt').text =~ /project\(SEAL VERSION (\d+\.\d+\.\d+)/
+ if (!m.find()) throw new GradleException("Could not parse SEAL version from CMakeLists.txt")
+ return m.group(1)
+}()
+
 android {
     namespace 'com.microsoft.research.SEAL'
     compileSdk 35
@@ -11,7 +17,7 @@ android {
         minSdk 35
         targetSdk 35
         versionCode 2
-        versionName "4.2.0"
+        versionName sealVersion
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         externalNativeBuild {

native/bench/CMakeLists.txt

@@ -3,14 +3,14 @@
 
 cmake_minimum_required(VERSION 3.25)
 
-project(SEALBench VERSION 4.2.0 LANGUAGES CXX)
+project(SEALBench VERSION 4.3.0 LANGUAGES CXX)
 
 # If not called from root CMakeLists.txt
 if(NOT DEFINED SEAL_BUILD_BENCH)
  set(SEAL_BUILD_BENCH ON)
 
  # Import Microsoft SEAL
- find_package(SEAL 4.2.0 EXACT REQUIRED)
+ find_package(SEAL 4.3.0 EXACT REQUIRED)
 
  # Must define these variables and include macros
  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${OUTLIB_PATH})

native/examples/CMakeLists.txt

@@ -3,14 +3,14 @@
 
 cmake_minimum_required(VERSION 3.25)
 
-project(SEALExamples VERSION 4.2.0 LANGUAGES CXX)
+project(SEALExamples VERSION 4.3.0 LANGUAGES CXX)
 
 # If not called from root CMakeLists.txt
 if(NOT DEFINED SEAL_BUILD_EXAMPLES)
  set(SEAL_BUILD_EXAMPLES ON)
 
  # Import Microsoft SEAL
- find_package(SEAL 4.2.0 EXACT REQUIRED)
+ find_package(SEAL 4.3.0 EXACT REQUIRED)
 
  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
 endif()

native/src/seal/c/sealcontext.cpp

@@ -145,14 +145,7 @@ SEAL_C_FUNC SEALContext_ParameterErrorName(void *thisptr, char *outstr, uint64_t
  IfNullRet(context, E_POINTER);
  IfNullRet(length, E_POINTER);
 
- const char *str = context->parameter_error_name();
-    *length = static_cast<uint64_t>(strlen(str));
-
- if (nullptr != outstr)
-    {
- memcpy(outstr, str, *length);
-    }
- return S_OK;
+ return ToStringHelper2(context->parameter_error_name(), outstr, length);
 }
 
 SEAL_C_FUNC SEALContext_ParameterErrorMessage(void *thisptr, char *outstr, uint64_t *length)
@@ -161,12 +154,5 @@ SEAL_C_FUNC SEALContext_ParameterErrorMessage(void *thisptr, char *outstr, uint6
  IfNullRet(context, E_POINTER);
  IfNullRet(length, E_POINTER);
 
- const char *str = context->parameter_error_message();
-    *length = static_cast<uint64_t>(strlen(str));
-
- if (nullptr != outstr)
-    {
- memcpy(outstr, str, *length);
-    }
- return S_OK;
+ return ToStringHelper2(context->parameter_error_message(), outstr, length);
 }

native/tests/CMakeLists.txt

@@ -3,14 +3,14 @@
 
 cmake_minimum_required(VERSION 3.25)
 
-project(SEALTest VERSION 4.2.0 LANGUAGES CXX C)
+project(SEALTest VERSION 4.3.0 LANGUAGES CXX C)
 
 # If not called from root CMakeLists.txt
 if(NOT DEFINED SEAL_BUILD_TESTS)
  set(SEAL_BUILD_TESTS ON)
 
  # Import Microsoft SEAL
- find_package(SEAL 4.2.0 EXACT REQUIRED)
+ find_package(SEAL 4.3.0 EXACT REQUIRED)
 
  # Must define these variables and include macros
  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${OUTLIB_PATH})

pipelines/ios.yml

@@ -1,26 +1,42 @@
 steps:
 - task: CMake@1
- displayName: 'Configure SEAL for arm64'
+ displayName: 'Configure SEAL for iOS device (arm64)'
  inputs:
  workingDirectory: '$(Build.SourcesDirectory)'
  cmakeArgs: >
       -S .
-      -B build-arm64
+      -B build-device
       -GXcode
       -DSEAL_BUILD_SEAL_C=ON
       -DSEAL_BUILD_STATIC_SEAL_C=ON
       -DCMAKE_SYSTEM_NAME=iOS
+      -DCMAKE_OSX_SYSROOT=iphoneos
+      -DCMAKE_OSX_ARCHITECTURES=arm64
+      -C cmake/functions.ios.cmake
+
+- task: CMake@1
+ displayName: 'Configure SEAL for iOS simulator (arm64)'
+ inputs:
+ workingDirectory: '$(Build.SourcesDirectory)'
+ cmakeArgs: >
+      -S .
+      -B build-simulator
+      -GXcode
+      -DSEAL_BUILD_SEAL_C=ON
+      -DSEAL_BUILD_STATIC_SEAL_C=ON
+      -DCMAKE_SYSTEM_NAME=iOS
+      -DCMAKE_OSX_SYSROOT=iphonesimulator
       -DCMAKE_OSX_ARCHITECTURES=arm64
       -C cmake/functions.ios.cmake
 
 - script: |
       cd $BUILD_SOURCESDIRECTORY
-      xcodebuild -project build-arm64/SEAL.xcodeproj -sdk iphonesimulator -arch arm64 -configuration ${{ parameters.configuration }} clean build
+      xcodebuild -project build-simulator/SEAL.xcodeproj -sdk iphonesimulator -arch arm64 -configuration ${{ parameters.configuration }} clean build
       mkdir -p $BUILD_SOURCESDIRECTORY/lib/iossimulator
 
-      echo Copying arm64 libraries from build-arm64/lib/${{ parameters.configuration }}/
-      cp build-arm64/lib/${{ parameters.configuration }}/libseal-*.a $BUILD_SOURCESDIRECTORY/lib/iossimulator/libseal.a
-      cp build-arm64/lib/${{ parameters.configuration }}/libsealc-*.a $BUILD_SOURCESDIRECTORY/lib/iossimulator/libsealc.a
+      echo Copying arm64 libraries from build-simulator/lib/${{ parameters.configuration }}/
+      cp build-simulator/lib/${{ parameters.configuration }}/libseal-*.a $BUILD_SOURCESDIRECTORY/lib/iossimulator/libseal.a
+      cp build-simulator/lib/${{ parameters.configuration }}/libsealc-*.a $BUILD_SOURCESDIRECTORY/lib/iossimulator/libsealc.a
 
       echo Architectures for iossimulator/libseal.a
       lipo -info $BUILD_SOURCESDIRECTORY/lib/iossimulator/libseal.a
@@ -31,12 +47,12 @@ steps:
 
 - script: |
       cd $BUILD_SOURCESDIRECTORY
-      xcodebuild -project build-arm64/SEAL.xcodeproj -sdk iphoneos -arch arm64 -configuration ${{ parameters.configuration }} clean build
+      xcodebuild -project build-device/SEAL.xcodeproj -sdk iphoneos -arch arm64 -configuration ${{ parameters.configuration }} clean build
       mkdir -p $BUILD_SOURCESDIRECTORY/lib/ios
 
-      echo Copying arm64 libraries from build-arm64/lib/${{ parameters.configuration }}/
-      cp build-arm64/lib/${{ parameters.configuration }}/libseal-*.a $BUILD_SOURCESDIRECTORY/lib/ios/libseal.a
-      cp build-arm64/lib/${{ parameters.configuration }}/libsealc-*.a $BUILD_SOURCESDIRECTORY/lib/ios/libsealc.a
+      echo Copying arm64 libraries from build-device/lib/${{ parameters.configuration }}/
+      cp build-device/lib/${{ parameters.configuration }}/libseal-*.a $BUILD_SOURCESDIRECTORY/lib/ios/libseal.a
+      cp build-device/lib/${{ parameters.configuration }}/libsealc-*.a $BUILD_SOURCESDIRECTORY/lib/ios/libsealc.a
  displayName: 'Build SEAL for iOS (arm64)'
 
 - task: CopyFiles@2