CryptographicException “Key not valid for use in specified state.” while trying to export RSAParameters of a X509 private key

by

I believe that the issue may be that the key is not marked as exportable. There is another constructor for X509Certificate2 that takes an X509KeyStorageFlags enum. Try replacing the line:

X509Certificate2 x = new X509Certificate2(@"C:\temp\certs\1\test.pfx", "test");

With this:

X509Certificate2 x = new X509Certificate2(@"C:\temp\certs\1\test.pfx", "test", X509KeyStorageFlags.Exportable);

More Related Contents:

  1. Encrypting/Decrypting large files (.NET)
  2. Encrypt and decrypt a string in C#? [closed]
  3. How to read a PEM RSA private key from .NET
  4. How to store/retrieve RSA public/private key
  5. Password encryption/decryption code in .NET
  6. How to Generate Unique Public and Private Key via RSA
  7. C# Export Private/Public RSA key from RSACryptoServiceProvider to PEM string
  8. How can I sign a file using RSA and SHA256 with .NET?
  9. Generate and Sign Certificate Request using pure .net Framework
  10. Which cryptographic hash function should I choose?
  11. C# RSA encryption/decryption with transmission
  12. Why use the C# class System.Random at all instead of System.Security.Cryptography.RandomNumberGenerator?
  13. implement RSA in .NET core
  14. how to use RSA to encrypt files (huge data) in C#
  15. OpenSSL encryption using .NET classes
  16. Encrypt cookies in ASP.NET
  17. Why does a bad password cause “Padding is invalid and cannot be removed”?
  18. Decrypt from SHA256
  19. Best way to store encryption keys in .NET C#
  20. RSA Encryption, getting bad length
  21. Programmatically encrypting a config-file in .NET
  22. Problem Updating to .Net 6 – Encrypting String
  23. How to convert SecureString to System.String?
  24. Encrypting Web.Config
  25. Calculate primes p and q from private exponent (d), public exponent (e) and the modulus (n)
  26. Encrypt SQLite database in C#
  27. Error occurred while decoding OAEP padding
  28. Encryption compatible between Android and C#
  29. AES encryption on large files
  30. How to implement Triple DES in C# (complete example)

Leave a Comment