Set the JWE Protected Header

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetProtectedHeader, which sets the integrity-protected JWE header from a JsonObject. The header specifies the key-management algorithm (alg) and content-encryption algorithm (enc).

var
success: Boolean;
jwe: HCkJwe;
header: HCkJsonObject;

begin
success := False;

jwe := CkJwe_Create();

//  Build the JWE protected header.  The "alg" member names the key-management algorithm and the "enc"
//  member names the content-encryption algorithm.
header := CkJsonObject_Create();
CkJsonObject_UpdateString(header,'alg','A256KW');
CkJsonObject_UpdateString(header,'enc','A256GCM');

//  Set the protected header on the JWE.  The protected header is integrity-protected and applies to
//  all recipients.
success := CkJwe_SetProtectedHeader(jwe,header);
if (success = False) then
  begin
    Memo1.Lines.Add(CkJwe__lastErrorText(jwe));
    Exit;
  end;
Memo1.Lines.Add('Protected header set.');

CkJwe_Dispose(jwe);
CkJsonObject_Dispose(header);