Generate RSA Public/Private Key Pair for Encryption (Key Exchange)

VB.NET example code showing how to generate an RSA public/private key pair for encrypting.

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Dim rsa As New Chilkat.Rsa()

Dim success As Boolean
success = rsa.UnlockComponent("Anything for 30-day trial")
If (success <> true) Then
    MsgBox("RSA component unlock failed")
    Exit Sub
End If


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


'  Keys are exported in XML format:
Dim publicKey As String
publicKey = rsa.ExportPublicKey()
TextBox1.Text = TextBox1.Text & publicKey & vbCrLf

Dim privateKey As String
privateKey = rsa.ExportPrivateKey()
TextBox1.Text = TextBox1.Text & privateKey & vbCrLf