Encrypt a JWE with a Recipient Public Key

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetPublicKey, which sets the public key used to encrypt for a recipient. The example uses RSA-OAEP-256 key management with AES-256-GCM content encryption.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

Local $bSuccess = False

$oJwe = ObjCreate("Chilkat.Jwe")

;  Protected header: RSA-OAEP-256 key management with AES-256-GCM content encryption.
$oHeader = ObjCreate("Chilkat.JsonObject")
$oHeader.UpdateString("alg","RSA-OAEP-256")
$oHeader.UpdateString("enc","A256GCM")
$bSuccess = $oJwe.SetProtectedHeader($oHeader)
If ($bSuccess = False) Then
    ConsoleWrite($oJwe.LastErrorText & @CRLF)
    Exit
EndIf

;  The file path is relative to the application's current working directory.  An absolute path
;  may also be used.  Supply the path appropriate to your own environment.
;  Load the recipient's public key.
$oPubKey = ObjCreate("Chilkat.PublicKey")
$bSuccess = $oPubKey.LoadFromFile("qa_data/recipient_pubkey.pem")
If ($bSuccess = False) Then
    ConsoleWrite($oPubKey.LastErrorText & @CRLF)
    Exit
EndIf

;  Set the public key used to encrypt for recipient 0.
$bSuccess = $oJwe.SetPublicKey(0,$oPubKey)
If ($bSuccess = False) Then
    ConsoleWrite($oJwe.LastErrorText & @CRLF)
    Exit
EndIf

Local $sJweCompact = $oJwe.Encrypt("This is the secret content.","utf-8")
If ($oJwe.LastMethodSuccess = False) Then
    ConsoleWrite($oJwe.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($sJweCompact & @CRLF)