Set the JWS Protected Header

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetProtectedHeader, which sets the integrity-protected header for a signer from a JsonObject. The header specifies the signature algorithm (alg).

#include <CkJwsW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkJwsW jws;

    //  Build the JWS protected header.  The "alg" member names the signature algorithm.
    CkJsonObjectW header;
    header.UpdateString(L"alg",L"HS256");

    //  Set the protected header for signer index 0.  The protected header is integrity-protected: it is
    //  covered by the signature.
    success = jws.SetProtectedHeader(0,header);
    if (success == false) {
        wprintf(L"%s\n",jws.lastErrorText());
        return;
    }

    wprintf(L"Protected header set.\n");
    }