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Because VCN is of distinguishing feature with super\u2010large scale and unstable communication, it is a challenging task to study efficient authentication scheme for VCN without losing security and conditional privacy\u2010preserving. To meet the challenge, a new efficient message authentication scheme is proposed in this paper. A batch message verification and signature aggregation are included in the proposed scheme to improve the authentication efficiency and decrease the communication cost. Compared with the similar conditional privacy\u2010preserving authentication schemes, the proposed scheme has superior performance in computation and communication cost. Simulation analysis further proves that the proposed scheme has better advantages in reducing the verification loss rate and message delay in the application of VCN.<\/jats:p>","DOI":"10.1155\/2018\/1875489","type":"journal-article","created":{"date-parts":[[2018,9,23]],"date-time":"2018-09-23T23:30:34Z","timestamp":1537745434000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Efficient Message Authentication Scheme with Conditional Privacy\u2010Preserving and Signature Aggregation for Vehicular Cloud Network"],"prefix":"10.1155","volume":"2018","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0472-5378","authenticated-orcid":false,"given":"Yong","family":"Xie","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5428-6532","authenticated-orcid":false,"given":"Fang","family":"Xu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dong","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu","family":"Nie","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,9,23]]},"reference":[{"key":"e_1_2_11_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jnca.2013.05.015"},{"key":"e_1_2_11_2_2","article-title":"Comments on \u2032dual authentication and key management techniques for secure data transmission in vehicular ad hoc networks\u2032","author":"Tan H.","year":"2017","journal-title":"IEEE Transactions on Intelligent Transportation Systems"},{"key":"e_1_2_11_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/MNET.2013.6616115"},{"key":"e_1_2_11_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11276-013-0543-7"},{"key":"e_1_2_11_5_2","doi-asserted-by":"crossref","unstructured":"WangJ. 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