Decrypt a JWE with a Private Key

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetPrivateKey, which sets the private key used to decrypt a recipient of a loaded JWE.

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")

;  Load the JWE compact serialization to be decrypted.
Local $sJweCompact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>"
$bSuccess = $oJwe.LoadJwe($sJweCompact)
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 private key.
$oPrivKey = ObjCreate("Chilkat.PrivateKey")
$bSuccess = $oPrivKey.LoadPemFile("qa_data/recipient_privkey.pem")
If ($bSuccess = False) Then
    ConsoleWrite($oPrivKey.LastErrorText & @CRLF)
    Exit
EndIf

;  Set the private key used to decrypt recipient 0.
$bSuccess = $oJwe.SetPrivateKey(0,$oPrivKey)
If ($bSuccess = False) Then
    ConsoleWrite($oJwe.LastErrorText & @CRLF)
    Exit
EndIf

Local $sContent = $oJwe.Decrypt(0,"utf-8")
If ($oJwe.LastMethodSuccess = False) Then
    ConsoleWrite($oJwe.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($sContent & @CRLF)