Classic ASP

Encrypt a JWE with a Symmetric Wrapping Key

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetWrappingKey, which sets the symmetric key-wrapping key for a recipient. The key bytes are supplied in a named encoding such as hex or base64.

Background. AES key wrapping protects the content-encryption key with a shared symmetric key. Both parties must possess the same wrapping key.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

set jwe = Server.CreateObject("Chilkat.Jwe")

'  Protected header: AES key-wrap with AES-256-GCM content encryption.
set header = Server.CreateObject("Chilkat.JsonObject")
success = header.UpdateString("alg","A256KW")
success = header.UpdateString("enc","A256GCM")
success = jwe.SetProtectedHeader(header)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( jwe.LastErrorText) & "</pre>"
    Response.End
End If

'  Set the symmetric key-wrapping key for recipient 0.  The key bytes are provided in the named
'  encoding (here base64).  In production, obtain the key from a secure source rather than hard-coding
'  it.
base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU="
success = jwe.SetWrappingKey(0,base64Key,"base64")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( jwe.LastErrorText) & "</pre>"
    Response.End
End If

jweCompact = jwe.Encrypt("This is the secret content.","utf-8")
If (jwe.LastMethodSuccess = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( jwe.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( jweCompact) & "</pre>"

%>
</body>
</html>