(PowerBuilder) Generate DSA SSH Key

Generates a DSA SSH key and saves to various public and private key file formats (OpenSSH and PuTTY).

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Key
integer li_Success
integer li_NumBits
string ls_ExportedKey
integer li_ExportEncrypted

loo_Key = create oleobject
// Use "Chilkat_9_5_0.SshKey" for versions of Chilkat < 10.0.0
li_rc = loo_Key.ConnectToNewObject("Chilkat.SshKey")
if li_rc < 0 then
    destroy loo_Key
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// numBits should be a minimum of 1024 and
// a multiple of 64.  Typical values are
// 1024 or 2048. 
li_NumBits = 2048
li_Success = loo_Key.GenerateDsaKey(li_NumBits)
if li_Success <> 1 then
    Write-Debug "Invalid numBits passed to DSA key generation method."
    destroy loo_Key
    return
end if

// Note: Generating a public/private key pair is CPU intensive
// and may take a short amount of time (more than few seconds,
// but less than a minute).

// Export the DSA private key to OpenSSH, PuTTY, and XML and save. 
li_ExportEncrypted = 0
ls_ExportedKey = loo_Key.ToOpenSshPrivateKey(li_ExportEncrypted)
// Chilkat provides a SaveText method for convenience...
li_Success = loo_Key.SaveText(ls_ExportedKey,"privkey_openssh_unencrypted.pem")

// Export with encryption to OpenSSH private key format:
loo_Key.Password = "secret"
li_ExportEncrypted = 1
ls_ExportedKey = loo_Key.ToOpenSshPrivateKey(li_ExportEncrypted)
li_Success = loo_Key.SaveText(ls_ExportedKey,"privkey_openssh_encrypted.pem")

// Export the DSA private key to unencrypted PuTTY format:
li_ExportEncrypted = 0
ls_ExportedKey = loo_Key.ToPuttyPrivateKey(li_ExportEncrypted)
li_Success = loo_Key.SaveText(ls_ExportedKey,"privkey_putty_unencrypted.ppk")

// Export the DSA private key to encrypted PuTTY format:
loo_Key.Password = "secret"
li_ExportEncrypted = 1
ls_ExportedKey = loo_Key.ToPuttyPrivateKey(li_ExportEncrypted)
li_Success = loo_Key.SaveText(ls_ExportedKey,"privkey_putty_encrypted.ppk")

// Export private key to XML:
ls_ExportedKey = loo_Key.ToXml()
li_Success = loo_Key.SaveText(ls_ExportedKey,"privkey.xml")

// ----------------------------------------------------
// Now for the public key....
// ----------------------------------------------------

// The Secure Shell (SSH) Public Key File Format
// is documented in RFC 4716.
ls_ExportedKey = loo_Key.ToRfc4716PublicKey()
li_Success = loo_Key.SaveText(ls_ExportedKey,"pubkey_rfc4716.pub")

// OpenSSH has a separate public-key file format, which 
// is also supported by Chilkat SshKey:
ls_ExportedKey = loo_Key.ToOpenSshPublicKey()
li_Success = loo_Key.SaveText(ls_ExportedKey,"pubkey_openSsh.pub")

Write-Debug "Finished."


destroy loo_Key