net9.0
namespace System.Security.Cryptography.X509Certificates
{
    public class X509Certificate2 : X509Certificate
    {
        [Obsolete("Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.", DiagnosticId = "SYSLIB0057", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
        [UnsupportedOSPlatform("browser")]
        public X509Certificate2(string! fileName, ReadOnlySpan<char> password, X509KeyStorageFlags keyStorageFlags = X509KeyStorageFlags.DefaultKeySet);
    }
}
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.NET 5.06.07.08.09.0
Information specific to net9.0
Assembly

System.Security.Cryptography , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Obsolete SYSLIB0057: Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.
Platform Restrictions

This API is supported on any platform except for these:

  • Browser
  • Built-in API
  • Package-provided API

12/22/2024
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