@inproceedings{Paper8,
	author = {Wenyi Liu and A. Selcuk Uluagac and Raheem Beyah},
	title = {MACA: A Privacy-Preserving Multi-factor Cloud Authentication System Utilizing Big Data.},
	booktitle = { In the IEEE International Conference on Computer Communications},
	series = {INFOCOM},
	type = {NS, PR},
	address = {Toronto, Canada},
	year = {2014},
}