#include <cstdio>
#include <iomanip>
#include <sstream>
#include <stdexcept>
#include <openssl/pem.h>
#include <openssl/ssl.h>
#include <openssl/hmac.h>
#include <openssl/evp.h>
#include <openssl/err.h>
#include "HMAC.h"
#include "Trace.h"
#include "Base64.h"