Sign a JWS with an HMAC Key from BinData

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetMacKeyBd, which sets the symmetric MAC key for a signature from the raw bytes in a BinData.

Dim success As Boolean
success = False

Dim jws As New Chilkat.Jws

//  Protected header specifying HMAC-SHA256.
Dim header As New Chilkat.JsonObject
success = header.UpdateString("alg","HS256")
success = jws.SetProtectedHeader(0,header)
If (success = False) Then
    System.DebugLog(jws.LastErrorText)
    Return
End If

Dim bIncludeBom As Boolean
bIncludeBom = False
success = jws.SetPayload("This is the content to sign.","utf-8",bIncludeBom)
If (success = False) Then
    System.DebugLog(jws.LastErrorText)
    Return
End If

//  Set the symmetric MAC key for signature 0 from the raw bytes in a BinData.  In production, obtain
//  the key material from a secure source.
Dim bdKey As New Chilkat.BinData
success = bdKey.AppendEncoded("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=","base64")
success = jws.SetMacKeyBd(0,bdKey)
If (success = False) Then
    System.DebugLog(jws.LastErrorText)
    Return
End If

Dim jwsCompact As String
jwsCompact = jws.CreateJws()
If (jws.LastMethodSuccess = False) Then
    System.DebugLog(jws.LastErrorText)
    Return
End If

System.DebugLog(jwsCompact)