Patent ID: 8363832
Filing Date: 2013-01-29
Classification: H04L,H04W

Abstract:
1. A method for management of cryptographic keys and certificates for a plurality of vehicles, said method comprising steps of: a certificate authority device for: generating a pool of triples using a key-generation algorithm, said pool having key-pool-size number of triples; distributing to and associating with each vehicle of said plurality of vehicles a small number of triples chosen randomly from said pool of triples; revoking a triple of said chosen triples when said triple is detected as used in malicious activity; and for each vehicle associated with said revoked triple, determining whether to replace said revoked triple using one or more refinements; wherein a first of said refinements comprises the steps of: for each vehicle the certificate authority device: wherein when the rekey counter is less than or equal to the rekey threshold for said vehicle, replacing said one revoked triple for said vehicle.