Possible to convert RSA private+public key to .pfx file?

Question

I've got an RSA (XML) private+public key. Is there any way to create a .pfx file from this?

Answer 1

You can use the commandline tool openssl to convert certificatats.

Try

   openssl pkcs12 -export -out newCertificate.pfx -inkey myKey.pem -in myCertificate.cer -name "myCertificateName@myDomain.net"

Answer 2

Since you tagged .NET I'll assume you're looking for an API do to this...

The assembly Mono.Security.dll , that ships with Mono but works well with MS.NET on Windows, has a PKCS12 type that allows you to create .pfx files (with or without an X.509 certificate).

Note that it's a low-level API, used by the mono tools , but it might be a bit more complex than other API. OTOH since mono tools are built using this you can copy-paste the source code that does what you need.