Cured salmon can be broken down into two basic categories: brine-cured salmon, and smoked salmon (hot & cold).  Smoked salmon is a blanket term for salmon of any origin (wild, farmed) or cut (fillet, steak) that is cured with hot or cold smoke. Cold-Smoked Salmon is smoked significantly longer and at a lower temperature than hot-smoked, which results in a texture that is similar to lox, but with an infused smoky flavor.  Brine-Cured Salmon Lox and Gravlax fall into the brine-cure category. Lox and Gravlax are both salt-cured, but unlike smoked salmon, do not go through a smoking process. The difference between lox and gravlax is in the brining spices: gravlax is cured with sugar, salt, and dill, rather than a salt brine.