Delphi ActiveX

Set the JWS Payload from BinData

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetPayloadBd, which sets the payload to be signed from the binary bytes in a BinData.

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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var
success: Integer;
jws: TChilkatJws;
bdPayload: TChilkatBinData;

begin
success := 0;

jws := TChilkatJws.Create(Self);

//  Set the payload from the binary bytes in a BinData.
bdPayload := TChilkatBinData.Create(Self);
bdPayload.AppendString('Binary content to sign.','utf-8');

success := jws.SetPayloadBd(bdPayload.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(jws.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add('Payload set.');