RNGCryptoServiceProvider.cs

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using System.ComponentModel;
 
namespace System.Security.Cryptography;
 
[Obsolete("RNGCryptoServiceProvider is obsolete. To generate a random number, use one of the RandomNumberGenerator static methods instead.", DiagnosticId = "SYSLIB0023", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
[EditorBrowsable(EditorBrowsableState.Never)]
public sealed class RNGCryptoServiceProvider : RandomNumberGenerator
{
    private readonly RandomNumberGenerator _impl;
 
    public RNGCryptoServiceProvider()
        : this((CspParameters?)null)
    {
    }
 
    public RNGCryptoServiceProvider(string str)
        : this((CspParameters?)null)
    {
    }
 
    public RNGCryptoServiceProvider(byte[] rgb)
        : this((CspParameters?)null)
    {
    }
 
    public RNGCryptoServiceProvider(CspParameters? cspParams)
    {
        if (cspParams != null)
        {
            throw new PlatformNotSupportedException();
        }
        _impl = RandomNumberGenerator.Create();
    }
 
    public override void GetBytes(byte[] data)
    {
        _impl.GetBytes(data);
    }
 
    public override void GetBytes(byte[] data, int offset, int count)
    {
        _impl.GetBytes(data, offset, count);
    }
 
    public override void GetBytes(Span<byte> data)
    {
        _impl.GetBytes(data);
    }
 
    public override void GetNonZeroBytes(byte[] data)
    {
        _impl.GetNonZeroBytes(data);
    }
 
    public override void GetNonZeroBytes(Span<byte> data)
    {
        _impl.GetNonZeroBytes(data);
    }
 
    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            _impl.Dispose();
            base.Dispose(disposing);
        }
    }
}