Cannot export RSAParameters from X509Certificate2 in .NET 9 RC2 #109059
Description
Description
I've noticed a discrepancy in behavior between .NET 8 and 9 (RC2) when it comes to the ability to export the RSAParameters (with private) between .NET 8 and .NET 9.
From a quick investigation it looks like ExportPolicy is different between those two frameworks despite passing same X509KeyStorageFlags parameters to the X509Certificate2 ctor (tried X509CertificateLoader as well).
I'm running this on Windows.
Reproduction Steps
var certBytes = File.ReadAllBytes("<path_to_pfx>");
var cert = new X509Certificate2(certBytes, (string)null, X509KeyStorageFlags.Exportable | X509KeyStorageFlags.UserKeySet);
var privateKey = (RSACng)cert.GetRSAPrivateKey();
Console.WriteLine(privateKey.Key.ExportPolicy);
var parameters = privateKey.ExportParameters(true);I can paste the PFX if needed. Got it from the staging Let's Encrypt.
Expected behavior
On .NET 8 I'm getting following output from the console writeline
AllowExport, AllowPlaintextExport
Actual behavior
On .NET 9 RC2 I'm getting following output:
AllowExport
Unhandled exception. System.Security.Cryptography.CryptographicException: The requested operation is not supported.
at System.Security.Cryptography.CngKey.Export(CngKeyBlobFormat format)
at System.Security.Cryptography.RSACng.ExportParameters(Boolean includePrivateParameters)
at Tryouts.Program.Main(String[] args) in D:\workspaces\ravendb_4\test\Tryouts\Program.cs:line 42
at Tryouts.Program.<Main>(String[] args)
I'm suspecting that the exception is caused because of the missing 'AllowPlaintextExport' flag.
Regression?
Yes?
Known Workarounds
No response
Configuration
dotnet --info
.NET SDK:
Version: 9.0.100-rc.2.24474.11
Commit: 315e1305db
Workload version: 9.0.100-manifests.4872d5d5
MSBuild version: 17.12.0-preview-24473-03+fea15fbd1
Runtime Environment:
OS Name: Windows
OS Version: 10.0.22631
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.100-rc.2.24474.11\
.NET workloads installed:
[aspire]
Installation Source: VS 17.11.35327.3, VS 17.12.35410.144
Manifest Version: 8.2.0/8.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\8.0.100\microsoft.net.sdk.aspire\8.2.0\WorkloadManifest.json
Install Type: Msi
Configured to use loose manifests when installing new manifests.
Host:
Version: 9.0.0-rc.2.24473.5
Architecture: x64
Commit: 990ebf52fc
.NET SDKs installed:
8.0.206 [C:\Program Files\dotnet\sdk]
8.0.403 [C:\Program Files\dotnet\sdk]
9.0.100-rc.2.24474.11 [C:\Program Files\dotnet\sdk]
.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.35 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.0-rc.2.24474.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.35 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.0-rc.2.24473.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.35 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.10 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.0-rc.2.24474.4 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
Environment variables:
Not set
global.json file:
Not found
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Other information
No response