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C++

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.

Background. Only the protected header is returned; it is not merged with the shared unprotected header or any per-recipient header.

Chilkat C++ Downloads

C++
#include <CkJwe.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkJwe jwe;

    //  Load the JWE.
    const char *jweCompact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>";
    success = jwe.LoadJwe(jweCompact);
    if (success == false) {
        std::cout << jwe.lastErrorText() << "\r\n";
        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.
    CkJsonObject json;
    success = jwe.GetProtectedHeader(json);
    if (success == false) {
        std::cout << jwe.lastErrorText() << "\r\n";
        return;
    }

    json.put_EmitCompact(false);
    std::cout << json.emit() << "\r\n";
    }