(VB.NET UWP/WinRT) Generate RSA Key and Export to Encrypted PEM

VB.NET UWP/WinRT sample showing how to generate an RSA key and export to encrypted PEM.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim rsa As New Chilkat.Rsa

' Generate a 1024-bit key.  Chilkat RSA supports
' key sizes ranging from 512 bits to 4096 bits.
Dim success As Boolean = rsa.GenerateKey(1024)
If (success <> True) Then
    Debug.WriteLine(rsa.LastErrorText)
    Exit Sub
End If


' Get the private key as unencrypted XML:
Dim keyXml As String = rsa.ExportPrivateKey()
Debug.WriteLine(keyXml)

' To encrypt the key -- meaning to get the key in
' an encrypted PEM format -- load it into a PrivateKey object,
' and then export to encrypted PEM:
Dim privKey As New Chilkat.PrivateKey

success = privKey.LoadXml(keyXml)
If (success <> True) Then
    Debug.WriteLine(privKey.LastErrorText)
    Exit Sub
End If


Dim strEncPem As String

strEncPem = privKey.GetPkcs8EncryptedPem("myPassword")

' You now have the private key in an encrypted format,
' which may be (for example) saved to a database