Investigating Public-Key Certificate Revocation in Smart Grid

摘要: The public key cryptography (PKC) is essential for securing many applications in smart grid. For the secure use of PKC, certificate revocation schemes tailored to grid should be adopted. However, little work has been done study In this paper, we first explain different motivations that necessitate revoking certificates We also identify can secured by PKC and thus need revocation. Then, existing define several metrics assess them. Based on assessment, are proper each scheme discuss how modified fully satisfy requirements its potential applications. Finally, pseudonymous infrastructure (PPKI), where a large number certified public/private keys assigned node preserve privacy. target vehicles-to-grid communications as application. Certificate application challenge because certificates. an efficient PPKI, named compressed lists (CRLs). Our analytical results demonstrate one cannot overhead/security all Rather, employed Moreover, used simulations measure overhead schemes.