(Visual Basic 6.0) Generate RSA Public/Private Key Pair and Export to PEM

Visual Basic 6.0 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim success As Long
success = 0

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

Dim rsa As New ChilkatRsa

' Generate a 2048-bit key.  Chilkat RSA supports
' key sizes ranging from 512 bits to 8192 bits.
Dim privKey As New PrivateKey
success = rsa.GenKey(2048,privKey)
If (success = 0) Then
    Debug.Print rsa.LastErrorText
    Exit Sub
End If

Dim pubKey As New PublicKey
success = privKey.ToPublicKey(pubKey)

' Save the private key in PEM format:
success = privKey.SavePemFile("privateKey.pem")
If (success = 0) Then
    Debug.Print privKey.LastErrorText
    Exit Sub
End If

' Save the public key in PEM format:
success = pubKey.SavePemFile(0,"publicKey.pem")
If (success = 0) Then
    Debug.Print pubKey.LastErrorText
    Exit Sub
End If

Debug.Print "Success."