The 27-year-old, who has one cap to his name, has been linked with a number of high-profile clubs in recent months including AC Milan, Roma, Monaco and Barcelona.
But Ruffier, who has 18 months left on his current deal - maintains that he is fully focused on St Etienne and finishing the season in good form.
"My future? I don't ask myself a lot of questions about it," he told Le Parisien.
"I have one year and a half remaining on my contract with St Etienne.
"I do my job. I am not thinking about next summer. I wish to finish the season well and go to the World Cup in Brazil."