 As a completed program, QuIST received an award from DARPA in 2008 for scientific breakthroughs previously conducted under its support.In 2004, QuIST-funded researchers demonstrated the DARPA Quantum Network, the first working quantum key distribution network.At its start, it employed coherent laser pulses over optical fiber media, sending unconditionally-secure messages between Harvard University, Boston University and BBN Technologies in Cambridge, Massachusetts.