code: function checkNonceMatch(context) {
      var newNonce1 = Buffer.concat([utility.string2Buffer(context.newNonce, 32), new Buffer([1]), context.authKeyAuxHash]);
      var newNonceHash = utility.buffer2String(utility.createSHAHash(newNonce1).slice(-16));
      var serverNewNonceHash = context.setClientDHParamsAnswer.new_nonce_hash1;
      if (logger.isDebugEnabled()) {
          logger.debug('newNonceHash = %s, new_nonce_hash1 = %s', newNonceHash.toString(), serverNewNonceHash.toString());
      }
      if (newNonceHash !== serverNewNonceHash) {
          logger.warn('\'dh_gen_ok.new_nonce_hash1\' check fails!');
          throw createError(newNonceHash + ' != ' + serverNewNonceHash, 'EREPLAYATTACK');
      }
      return context;
  }
docs: Withstand replay-attacks