(VB.NET) Generate RSA Public/Private Key Pair and Export to PEM

VB.NET example code showing how to generate an RSA public/private key pair and export to PEM files.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

Dim success As Boolean = False

' 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 2048-bit key.  Chilkat RSA supports
' key sizes ranging from 512 bits to 8192 bits.
Dim privKey As New Chilkat.PrivateKey
success = rsa.GenKey(2048,privKey)
If (success = False) Then
    Debug.WriteLine(rsa.LastErrorText)
    Exit Sub
End If


Dim pubKey As New Chilkat.PublicKey
privKey.ToPublicKey(pubKey)

' Save the private key in PEM format:
success = privKey.SavePemFile("privateKey.pem")
If (success = False) Then
    Debug.WriteLine(privKey.LastErrorText)
    Exit Sub
End If


' Save the public key in PEM format:
success = pubKey.SavePemFile(False,"publicKey.pem")
If (success = False) Then
    Debug.WriteLine(pubKey.LastErrorText)
    Exit Sub
End If


Debug.WriteLine("Success.")