@inproceedings{oai:ipsj.ixsq.nii.ac.jp:00214433,
 author = {Maharage, Nisansala Sevwandi Perera and Toru, Nakamura and Masayuki, Hashimoto and Hiroyuki, Yokoyama and Chen-Mou, Cheng and Kouichi, Sakurai and Maharage, Nisansala Sevwandi Perera and Toru, Nakamura and Masayuki, Hashimoto and Hiroyuki, Yokoyama and Chen-Mou, Cheng and Kouichi, Sakurai},
 book = {コンピュータセキュリティシンポジウム2021論文集},
 month = {Oct},
 note = {Vehicular Ad-hoc NETworks (VANETs), a special kind of Mobile Ad-hoc NETworks (MANETs), plays an important role in Intelligent Transportation Systems (ITS), allowing communication among vehicles and between vehicles and road-side units (RSUs). Among the performance requirements in VANETs, managing revocation of misbehaved vehicles took signicant attention as it hindrances the practicability of VANETs. Even though numerous works proposed solutions for revocation management in VANET, there is no clear winner with secured and efficient revocation. This paper proposes two different solutions for revocation management for VANETs. The rst solution presents efficient revocation, which does not require any authority involvement. The second proposal provides anonymous revocation, which guarantees the privacy of vehicles even though they are being revoked. Moreover, this paper presents extended privacy for revoking parties using ring signatures., Vehicular Ad-hoc NETworks (VANETs), a special kind of Mobile Ad-hoc NETworks (MANETs), plays an important role in Intelligent Transportation Systems (ITS), allowing communication among vehicles and between vehicles and road-side units (RSUs). Among the performance requirements in VANETs, managing revocation of misbehaved vehicles took signicant attention as it hindrances the practicability of VANETs. Even though numerous works proposed solutions for revocation management in VANET, there is no clear winner with secured and efficient revocation. This paper proposes two different solutions for revocation management for VANETs. The rst solution presents efficient revocation, which does not require any authority involvement. The second proposal provides anonymous revocation, which guarantees the privacy of vehicles even though they are being revoked. Moreover, this paper presents extended privacy for revoking parties using ring signatures.},
 pages = {239--244},
 publisher = {情報処理学会},
 title = {Efficient Revocation and Anonymous Revocation in VANETs Using Ring Signatures},
 year = {2021}
}