OWASP #6 Preventing Sensitive Data Exposure in ASP.NET – Part 1

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namespace NET7Reflection;

public class Person
{
    private int _age;

    internal Person(int age) => _age = age;

    private int GetAge() => _age;

    private void SetAge(int age) => _age = age;
}

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="BenchmarkDotNet" Version="0.13.4" />
  </ItemGroup>

</Project>

using System.Reflection;
using BenchmarkDotNet.Attributes;

namespace NET7Reflection;

[MemoryDiagnoser(false)]
public class Benchmarks
{
    private readonly object?[] _ageParams = { 30 };

    private readonly ConstructorInfo _ctor =
        typeof(Person).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, new[] { typeof(int) })!;

    private readonly MethodInfo _getAgeMethod =
        typeof(Person).GetMethod("GetAge", BindingFlags.NonPublic | BindingFlags.Instance)!;

    private readonly Person _person = new(10);

    private readonly MethodInfo _setAgeMethod =
        typeof(Person).GetMethod("SetAge", BindingFlags.NonPublic | BindingFlags.Instance)!;

    [Benchmark]
    public int GetAge() =>
        (int)typeof(Person).GetMethod("GetAge", BindingFlags.NonPublic | BindingFlags.Instance)!
                           .Invoke(_person, Array.Empty<object?>())!;

    [Benchmark]
    public int GetAgeCachedMethod() => (int)_getAgeMethod.Invoke(_person, Array.Empty<object?>())!;

    [Benchmark]
    public void SetAge() =>
        typeof(Person).GetMethod("SetAge", BindingFlags.NonPublic | BindingFlags.Instance)!
                      .Invoke(_person, new object?[] { 30 });

    [Benchmark]
    public void SetAgeCachedMethod() => _setAgeMethod.Invoke(_person, new object?[] { 30 });

    [Benchmark]
    public void SetAgeCachedMethodCachedParams() => _setAgeMethod.Invoke(_person, _ageParams);

    [Benchmark]
    public Person Ctor() =>
        (Person)typeof(Person).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, new[] { typeof(int) })!
                              .Invoke(_person, new object?[] { 30 })!;

    [Benchmark]
    public Person CtorCachedCtorInfo() => (Person)_ctor.Invoke(_person, new object?[] { 30 })!;

    [Benchmark]
    public Person CtorCachedCtorInfoCachedParams() => (Person)_ctor.Invoke(_person, _ageParams)!;
}

using BenchmarkDotNet.Running;
using NET7Reflection;

BenchmarkRunner.Run<Benchmarks>();

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