Extract private key from pfx file or certificate store WITHOUT using OpenSSL on Windows

Question

As the title suggests I would like to export my private key without using OpenSSL or any other third party tool. If I need a .cer file or .pfx file I c

Answer 1

The Key, when exportable, can be exported using several APIs to several formats. The most common would be PKCS#8 (industry standard) and XML (MSFT properitary afaik).

Have a look at these answers:

• Export CngKey in PKCS8 with encryption c#
• C# (.NET) RSACryptoServiceProvider import/export x509 public key blob and PKCS8 private key blob
• Convert RSACryptoServiceProvider RSA XML key to PKCS8
• RSACng and CngKeyBlobFormat import and export formats