B4X

Set the JWS Payload

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetPayload, which sets the content to be signed. The charset converts the text to bytes, and a flag controls whether a byte-order mark is included.

Background. JWS (JSON Web Signature) integrity-protects a payload with a signature or MAC. The header alg names the algorithm; this example uses HMAC-SHA256 (HS256) with a symmetric MAC key.

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Dim success As Boolean = False

Dim jws As ChilkatJws
jws.Initialize

'  Set the payload (the content to be signed).  The 2nd argument is the charset used to convert the
'  text to bytes, and the 3rd controls whether a byte-order mark is included.
Dim bIncludeBom As Boolean = False
success = jws.SetPayload("This is the content to sign.", "utf-8", bIncludeBom)
If success = False Then
    Log(jws.LastErrorText)
    Return
End If

Log("Payload set.")