The defender was found guilty of match-fixing during his spell at Bari between 2006 and 2008, but had been accused of contradicting his story when he stood for trial earlier in the month.
Nevertheless, he insists he did not lie to prosecutors and is now at ease with himself, having told the truth for his role on six counts of foul play.
"I have a conscience," Masiello told Corriere dello Sport. "I am totally at peace with myself for having told the whole truth."
Meanwhile, Torino midfielder Giuseppe Vives has spoken of his happiness at being acquitted from the scandal, which also saw former club Lecce relegated to Lega Pro for their involvement in the scandal.
"I'm very happy, after all this mess," said the midfielder, who can now look forward to a campaign in Serie A with the Granata.
"At the height of my career, I've been living a nightmare that has thankfully ended. I must thank my lawyers, my family, Torino and my agents."