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Load a Public Key from Base64 DER

Demonstrates the Chilkat PublicKey.LoadBase64 method, which loads a public key from standard Base64-encoded DER. The only argument is the Base64 string; whitespace within it is permitted.

Background: A public key in DER (binary) form is often carried as Base64 text so it can travel through channels that expect a string — a config value, a JSON field, a certificate export. This loader decodes that text and inspects the DER to determine the key type and structure automatically. It is the plain-Base64 counterpart to loading a full PEM block, which additionally has the BEGIN/END armor.

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Local $bSuccess = False

;  Demonstrates the PublicKey.LoadBase64 method, which loads a public key from standard
;  Base64-encoded DER.  The only argument is the Base64 string (whitespace is allowed).

$oPubKey = ObjCreate("Chilkat.PublicKey")

;  The Base64 of the DER-encoded public key.
Local $sKeyStr = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA...IDAQAB"

$bSuccess = $oPubKey.LoadBase64($sKeyStr)
If ($bSuccess = False) Then
    ConsoleWrite($oPubKey.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Loaded a " & $oPubKey.KeyType & " public key." & @CRLF)