Is curing salt the same as Kosher salt?

Salt is Salt (NaCl) no matter what is origins. Kosher, Sea, Maldon, Rock etc are all MARKETING terms designed to make what you are purchasing more expensive.

Table Salt is Salt with a to which little anticaking agents such as sodium aluminosilicate or magnesium carbonate are added to make it free-flowing. Table salt is also "Iodized" by law in certain countries.

Curing Salt is Salt with a little Sodium Nitrite added AND IS NOT THE SAME AS SALT (or Kosher Salt). This salt is mixed to cure meet and would be poisonous if not used as directed on the packaging.