Get the JWE Protected Header

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.GetProtectedHeader, which copies the decoded shared JWE protected header into a JsonObject.

#include <C_CkJweW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkJweW jwe;
    const wchar_t *jweCompact;
    HCkJsonObjectW json;

    success = FALSE;

    jwe = CkJweW_Create();

    //  Load the JWE.
    jweCompact = L"eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>";
    success = CkJweW_LoadJwe(jwe,jweCompact);
    if (success == FALSE) {
        wprintf(L"%s\n",CkJweW_lastErrorText(jwe));
        CkJweW_Dispose(jwe);
        return;
    }

    //  Copy the decoded shared JWE protected header into a JsonObject.  Only the protected header is
    //  returned; it is not merged with the unprotected or per-recipient headers.
    json = CkJsonObjectW_Create();
    success = CkJweW_GetProtectedHeader(jwe,json);
    if (success == FALSE) {
        wprintf(L"%s\n",CkJweW_lastErrorText(jwe));
        CkJweW_Dispose(jwe);
        CkJsonObjectW_Dispose(json);
        return;
    }

    CkJsonObjectW_putEmitCompact(json,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(json));


    CkJweW_Dispose(jwe);
    CkJsonObjectW_Dispose(json);

    }