refactor: chacha20 and salsa20

Author: HMBSbige

.github/workflows/CI.yml

@@ -48,6 +48,27 @@ jobs:
         working-directory: test/${{ env.ProjectName }}.Tests
         run: dotnet test -c Release
 
+      - name: Run tests (Disable AVX)
+        if: matrix.os != 'macos-latest'
+        working-directory: test/${{ env.ProjectName }}.Tests
+        run: dotnet test -c Release
+        env:
+          DOTNET_EnableAVX: 0
+
+      - name: Run tests (Disable SSE)
+        if: matrix.os != 'macos-latest'
+        working-directory: test/${{ env.ProjectName }}.Tests
+        run: dotnet test -c Release
+        env:
+          DOTNET_EnableSSE: 0
+
+      - name: Run tests (Disable HWIntrinsic)
+        if: matrix.os != 'macos-latest'
+        working-directory: test/${{ env.ProjectName }}.Tests
+        run: dotnet test -c Release
+        env:
+          DOTNET_EnableHWIntrinsic: 0
+
   build:
     needs: [check_format, test]
     if: ${{ github.event_name == 'push' && startsWith(github.ref, 'refs/tags/') }}

src/CryptoBase/SymmetricCryptos/BlockCryptoModes/CTR/CTR128StreamModeBlock4X86.cs

@@ -32,7 +32,8 @@ public CTR128StreamModeBlock4X86(IBlockCrypto crypto, ReadOnlySpan<byte> iv)
 		_counter = ArrayPool<byte>.Shared.Rent(BlockSize4);
 		_keyStream = ArrayPool<byte>.Shared.Rent(BlockSize4);
 
-		_iCounter = Unsafe.As<byte, Vector128<byte>>(ref MemoryMarshal.GetReference(iv)).ReverseEndianness128();
+		ref Vector128<byte> v = ref Unsafe.As<byte, Vector128<byte>>(ref MemoryMarshal.GetReference(iv));
+		_iCounter = v.ReverseEndianness128();
 
 		Reset();
 	}

src/CryptoBase/SymmetricCryptos/BlockCryptoModes/CTR/CTR128StreamModeBlock8X86.cs

@@ -35,7 +35,8 @@ public CTR128StreamModeBlock8X86(IBlockCrypto crypto, ReadOnlySpan<byte> iv)
 		_counter = ArrayPool<byte>.Shared.Rent(BlockSize8);
 		_keyStream = ArrayPool<byte>.Shared.Rent(BlockSize8);
 
-		_iCounter = Unsafe.As<byte, Vector128<byte>>(ref MemoryMarshal.GetReference(iv)).ReverseEndianness128();
+		ref Vector128<byte> v = ref Unsafe.As<byte, Vector128<byte>>(ref MemoryMarshal.GetReference(iv));
+		_iCounter = v.ReverseEndianness128();
 
 		Reset();
 	}