RSASignaturePadding.cs

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using System.Diagnostics.CodeAnalysis;
using System.Runtime.Versioning;
 
namespace System.Security.Cryptography;
 
[UnsupportedOSPlatform("browser")]
public sealed class RSASignaturePadding : IEquatable<RSASignaturePadding>
{
    private static readonly RSASignaturePadding s_pkcs1 = new RSASignaturePadding(RSASignaturePaddingMode.Pkcs1);
 
    private static readonly RSASignaturePadding s_pss = new RSASignaturePadding(RSASignaturePaddingMode.Pss);
 
    private readonly RSASignaturePaddingMode _mode;
 
    public static RSASignaturePadding Pkcs1 => s_pkcs1;
 
    public static RSASignaturePadding Pss => s_pss;
 
    public RSASignaturePaddingMode Mode => _mode;
 
    private RSASignaturePadding(RSASignaturePaddingMode mode)
    {
        _mode = mode;
    }
 
    public override int GetHashCode()
    {
        return _mode.GetHashCode();
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        return Equals(obj as RSASignaturePadding);
    }
 
    public bool Equals([NotNullWhen(true)] RSASignaturePadding? other)
    {
        if ((object)other != null)
        {
            return _mode == other._mode;
        }
        return false;
    }
 
    public static bool operator ==(RSASignaturePadding? left, RSASignaturePadding? right)
    {
        return left?.Equals(right) ?? ((object)right == null);
    }
 
    public static bool operator !=(RSASignaturePadding? left, RSASignaturePadding? right)
    {
        return !(left == right);
    }
 
    public override string ToString()
    {
        return _mode.ToString();
    }
}