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#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/rand.h>
#include <numeric>
#include "crypt_algo.hpp"
#include "message_parsers.hpp"
namespace cipher
{
namespace crypt
{
Interface::Interface(const buffer& sik, const key& addKey)
{
unsigned int mdLen = 0;
// Generated K2 for the confidentiality algorithm with the additional key
// keyed with SIK.
if (HMAC(EVP_sha1(), sik.data(), sik.size(), addKey.data(),
addKey.size(), k2.data(), &mdLen) == NULL)
{
throw std::runtime_error("Generating K2 for confidentiality algorithm"
"failed");
}
}
}// namespace crypt
}// namespace cipher
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