Create a JWS

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.CreateJws, which creates and returns a JWS from the current payload, headers, and signing key.

Dim success As Long
success = 0

Dim jws As New ChilkatJws

'  Set the protected header for signer 0, specifying the signature algorithm (alg).
Dim header As New ChilkatJsonObject
success = header.UpdateString("alg","HS256")
success = jws.SetProtectedHeader(0,header)
If (success = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

'  Set the payload to be signed.
Dim bIncludeBom As Long
bIncludeBom = 0
success = jws.SetPayload("This is the content to sign.","utf-8",bIncludeBom)
If (success = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

'  Provide the HMAC key (base64) for signer 0.  In production, obtain the key from a secure source
'  rather than hard-coding it.
Dim base64Key As String
base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU="
success = jws.SetMacKey(0,base64Key,"base64")
If (success = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

'  Create the JWS from the current payload, headers, and signing key.  The returned string is the
'  JWS (compact serialization by default).
Dim jwsCompact As String
jwsCompact = jws.CreateJws()
If (jws.LastMethodSuccess = 0) Then
    Debug.Print jws.LastErrorText
    Exit Sub
End If

Debug.Print jwsCompact