namespace System.Security.Cryptography
{
    public class Rfc2898DeriveBytes : DeriveBytes
    {
        [Obsolete("Rfc2898DeriveBytes.CryptDeriveKey is obsolete and is not supported. Use PasswordDeriveBytes.CryptDeriveKey instead.", DiagnosticId = "SYSLIB0033", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
        public byte[]! CryptDeriveKey(string! algname, string! alghashname, int keySize, byte[]! rgbIV);
    }
}