%0 Journal Article %T Anonymous Authentication and Key Agreement Scheme Combining the Group Key for Vehicular Ad Hoc Networks %A Sun, Mei %A Guo, Yuyan %A Zhang, Dongbing %A Jiang, MingMing %J Complexity %V 2021 %@ 1076-2787 %D 2021-05-04 %I Hindawi %~ DeepDyve