Scout national football analyst Allen Trieu announced the commitment on the AllHoosiers.com premium message board.
Saturday, IU picked up a commitment from Chicago St. Rita athlete Tommy Mister.
That gives Indiana 19 commitments in this class and Kevin Wilson has said the Hoosiers will sign 24.
Smith is the second cornerback to commit to the Hoosiers. The other was Fort Wayne South's Donovan Clark.
Check by at AllHoosiers.com in the coming days for comments from Smith and Mister.
Follow Terry Hutchens at Twitter.com/Foxsportshutch