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).

#include <C_CkJwe.h>
#include <C_CkJsonObject.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkJwe jwe;
    HCkJsonObject header;

    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) {
        printf("%s\n",CkJwe_lastErrorText(jwe));
        CkJwe_Dispose(jwe);
        CkJsonObject_Dispose(header);
        return;
    }

    printf("Protected header set.\n");


    CkJwe_Dispose(jwe);
    CkJsonObject_Dispose(header);

    }