Sample code for 30+ languages & platforms
C++

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).

Background. The protected header is integrity-protected and applies to all recipients. It is configured before encrypting.

Chilkat C++ Downloads

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

void ChilkatSample(void)
    {
    bool success = false;

    CkJwe jwe;

    //  Build the JWE protected header.  The "alg" member names the key-management algorithm and the "enc"
    //  member names the content-encryption algorithm.
    CkJsonObject header;
    header.UpdateString("alg","A256KW");
    header.UpdateString("enc","A256GCM");

    //  Set the protected header on the JWE.  The protected header is integrity-protected and applies to
    //  all recipients.
    success = jwe.SetProtectedHeader(header);
    if (success == false) {
        std::cout << jwe.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Protected header set." << "\r\n";
    }